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Published by VMT at Jul 17 2025 | Reading Time：About 6 minutes
Selecting the right stainless steel can be overwhelming, especially with so many grades—like 18/10, 316, and 304—all claiming to offer durability, corrosion resistance, and strength. Yet without clear comparison, engineers, product designers, and sourcing professionals risk choosing a material that doesn’t match their application. This leads to avoidable problems in CNC machining, higher costs, or premature product failure.
That’s where this guide steps in. It breaks down the key differences between 18/10 stainless steel, 316 stainless steel, and 304 stainless steel, so you can make informed, confident decisions for your CNC machining parts projects.
The main difference between 18/10, 316, and 304 stainless steel lies in their composition and corrosion resistance. 18/10 is a type of 304 steel with added nickel for shine and durability, while 316 includes molybdenum for superior corrosion resistance, especially in marine and chemical environments. Choose based on cost, environment, and mechanical requirements.
Understanding the distinctions between these stainless steel grades is essential for optimizing material selection in industries like food processing, medical, marine, and heavy machinery. Whether you're selecting material for stainless steel CNC machining parts or evaluating supplier quotes, this detailed breakdown will help you choose the best fit for your technical and budgetary requirements.
Looking for in-depth material comparisons? Visit our full [Stainless Steel Material Guide] for other CNC machining resources.
To choose the right stainless steel for your project, it’s important to understand how 18/10, 316, and 304 stainless steel compare in terms of composition, corrosion resistance, mechanical strength, and suitability for CNC machining applications.
Summary Table: Quick Comparison
| Feature |
18/10 Stainless Steel |
304 Stainless Steel |
316 Stainless Steel |
| Chromium/Nickel Content | 18% Cr / 10% Ni | ~18% Cr / 8–10.5% Ni | ~16% Cr / 10–14% Ni + 2% Mo |
| Corrosion Resistance | High | Moderate to High | Excellent (especially marine) |
| Strength & Durability | Good | Good | Higher |
| Saltwater Resistance | Moderate | Low | Excellent |
| Cost | Moderate | Low | Higher |
| CNC Machinability | Good | Excellent | More difficult |
| Applications | Cookware, appliances | Food, dairy, architecture | Marine, chemical, medical |
Whether you need high corrosion resistance, great formability, or enhanced strength for CNC machining parts, selecting the right stainless steel grade—18/10, 304, or 316—is crucial to achieving performance, longevity, and cost-efficiency.
18/10 stainless steel is a high-quality, food-grade stainless steel alloy that contains 18% chromium and 10% nickel. It is technically a subset of 304 stainless steel, but the term “18/10” is commonly used in consumer products—especially cookware and cutlery—to indicate enhanced corrosion resistance, durability, and a lustrous, polished finish.
The chromium in 18/10 stainless steel helps create a passive oxide layer on the surface, which protects the material from rust and oxidation. The 10% nickel adds ductility, toughness, and shine, giving it both structural integrity and aesthetic appeal. Thanks to this nickel content, 18/10 stainless steel maintains its appearance and strength even when exposed to frequent washing, food acids, and heat cycles.
This grade is non-magnetic in its annealed state, which makes it ideal for applications where magnetic interference must be avoided, such as medical equipment or precision instruments. It is also resistant to food and beverage acids, making it hygienic and safe for use in environments that demand high cleanliness standards. However, it does not offer the same resistance to chlorides or saltwater as 316 stainless steel.
From a manufacturing perspective, 18/10 stainless steel CNC machining parts are relatively easy to machine, weld, and form, especially for decorative or sanitary products. It strikes a solid balance between performance and affordability, making it one of the most popular materials in both consumer and industrial sectors.
In summary, 18/10 stainless steel is a durable, hygienic, and corrosion-resistant material, ideal for cookware, kitchen utensils, appliances, medical instruments, and food industry components. Its excellent mechanical and surface properties make it a frequent choice in CNC machining services for stainless steel parts requiring both function and finish.
316 stainless steel is an austenitic chromium-nickel stainless steel alloy that includes 2% to 3% molybdenum—an element that significantly improves its resistance to corrosion, especially in chloride-rich or marine environments. This added molybdenum sets 316 apart from 304 and 18/10 stainless steel, making it one of the most corrosion-resistant alloys used in industrial and commercial settings.
The basic composition of 316 stainless steel typically includes 16–18% chromium, 10–14% nickel, and 2–3% molybdenum, with iron making up the balance. It is non-magnetic in the annealed condition and retains its toughness, strength, and ductility even at extreme temperatures, both hot and cold. These characteristics make 316 ideal for critical applications where material failure is not an option.
From a manufacturing standpoint, 316 stainless steel CNC machining parts are more challenging to machine than 304 or 18/10 due to its higher strength and work-hardening rate. However, it is still highly workable with the right cutting tools, coolants, and machining strategies. It can also be welded using most conventional methods, though weld decay or corrosion at the weld site can occur if not properly treated or passivated.
316 is commonly used in chemical processing equipment, marine parts, medical devices, food production systems, and high-temperature industrial environments, thanks to its ability to resist pitting, crevice corrosion, and stress corrosion cracking. In the CNC machining services industry, it is preferred for precision components that must perform reliably under extreme or corrosive conditions.
In summary, 316 stainless steel is a high-performance alloy best known for its superior corrosion resistance, high temperature durability, and biocompatibility, making it ideal for use in demanding CNC machining applications across the marine, medical, chemical, and food sectors.
304 stainless steel is the most widely used and versatile type of stainless steel, known for its excellent corrosion resistance, good formability, and cost-effectiveness. It belongs to the austenitic family of stainless steels and is commonly composed of approximately 18% chromium and 8–10.5% nickel, which is why it’s often referred to as 18/8 stainless steel. It is also the base alloy behind the consumer-grade 18/10 stainless steel, with a slightly lower nickel content.
One of the key advantages of 304 stainless steel is its excellent general-purpose corrosion resistance. It performs well in a wide range of environments, including humid indoor spaces, kitchens, and mildly acidic or basic environments. However, it is less resistant to chlorides and saltwater than 316 stainless steel, and prolonged exposure in such environments can lead to pitting or crevice corrosion.
Mechanically, 304 stainless steel is strong, ductile, and easy to fabricate, making it ideal for stamping, forming, machining, and welding. It has good tensile strength and can withstand elevated temperatures without significant deformation or degradation. Because of its consistent composition and machinability, 304 stainless steel CNC machining parts are widely produced for industries ranging from food processing to architecture and medical equipment.
In terms of magnetic properties, 304 is non-magnetic in the annealed condition but can become slightly magnetic when cold-worked, which is important in applications requiring minimal magnetic interference. It is also recyclable and environmentally friendly, further enhancing its appeal across global industries.
In summary, 304 stainless steel is a reliable, low-maintenance, and economically viable alloy that offers excellent performance for both industrial and consumer applications. Its widespread use in CNC machining services, particularly for food-safe, structural, and decorative components, makes it a cornerstone material in modern manufacturing.
Understanding the strengths and weaknesses of different stainless steel grades is essential for selecting the most suitable material for your CNC machining project. Whether you're manufacturing components for food processing, marine systems, or architectural products, each grade—18/10, 316, and 304 stainless steel—offers unique advantages and potential drawbacks. This section outlines these factors to help engineers, designers, and procurement teams make the right decisions in terms of performance, environment, and cost.
18/10 Stainless Steel: Advantages and Disadvantages
18/10 stainless steel, a subtype of 304 stainless steel, is widely used in both consumer and industrial products thanks to its elegant appearance, hygienic properties, and resistance to everyday corrosion. However, it may not be suitable for highly corrosive or industrial-grade environments. Let’s examine its pros and cons in detail to assess where this material excels—and where it falls short.
Advantages of 18/10 Stainless Steel
18/10 stainless steel is a well-rounded material offering a blend of aesthetics, hygiene, and mechanical strength. Here are its core advantages:
The high chromium (18%) and nickel (10%) content give 18/10 stainless steel excellent protection against common forms of corrosion, especially in food, moisture, and household chemical environments.
Its austenitic structure provides good tensile strength and flexibility, making it suitable for CNC machining parts exposed to moderate mechanical stress and daily wear.
Due to its smooth, non-porous surface, 18/10 is a top choice in applications requiring hygiene, such as medical tools, kitchen appliances, and food-processing components.
18/10 stainless steel has a bright, mirror-like finish that holds up well over time and resists tarnishing, making it ideal for visible or decorative parts.
It performs well under most welding techniques, with minimal risk of cracking or weld deformation when proper procedures are followed.
Thanks to its ductility and toughness, 18/10 is easy to bend, stamp, and deep draw—perfect for stainless steel CNC machining parts that require complex shapes.
18/10 stainless steel is 100% recyclable, supporting sustainability initiatives across industries such as architecture and consumer goods.
Disadvantages of 18/10 Stainless Steel
Despite its many advantages, 18/10 stainless steel has several limitations that should be considered before selecting it for high-performance applications.
Due to its higher nickel content, 18/10 is more costly than standard 304 stainless steel or low-nickel alternatives, which may affect material budgeting for large-scale projects.
Although generally considered non-magnetic, 18/10 stainless steel can exhibit mild magnetic properties after cold working or forming—undesirable in some electronic or precision environments.
18/10 is not marine grade; exposure to saltwater, chlorinated cleaners, or acidic conditions can lead to pitting and corrosion, unlike 316 stainless steel.
Its melting range (1,400–1,450°C) can make some thermal manufacturing processes less efficient or more costly in comparison to other alloys.
While this is sometimes a benefit, certain applications (e.g., magnetic sensors, fixtures) require materials with magnetic properties, limiting the suitability of 18/10.
In certain environments—especially those involving chlorides and high temperatures—18/10 stainless steel may be susceptible to stress corrosion cracking, a risk in structural or long-term load-bearing parts.
Here's a clear, easy-to-read comparison table summarizing the advantages and disadvantages of 18/10 stainless steel, suitable for SEO and professional readers in the CNC machining industry:
18/10 Stainless Steel: Advantages vs. Disadvantages
| Advantages |
Disadvantages |
| Excellent corrosion resistance in daily environments | More expensive due to higher nickel content |
| Durable and withstands mechanical stress | Not suitable for saltwater or chloride-rich environments |
| Hygienic, easy to clean, and sterilize | Can exhibit mild magnetism after cold-working |
| Attractive surface appearance, bright and shiny finish | High melting point makes some thermal processes less efficient |
| Good weldability with most standard techniques | Susceptible to stress corrosion cracking in harsh environments |
| Easily formable—ideal for deep drawing and complex shapes | Non-magnetic by nature, unsuitable for magnetic-based applications |
| Fully recyclable, supporting sustainability goals | Limited resistance compared to 316 in aggressive chemical conditions |
This table is optimized to communicate practical pros and cons quickly for engineers, buyers, and machinists considering 18/10 stainless steel CNC machining parts.
Advantages and Disadvantages of 316 Stainless Steel
316 stainless steel is known as the premium grade among common stainless steels due to its superior corrosion resistance, especially in marine and chemical environments. Its high-performance properties make it a top choice in industries where failure is not an option—such as pharmaceuticals, marine systems, and industrial equipment. However, these advantages come at a cost, and 316 may not be the best fit for all CNC machining projects. Below is a detailed breakdown of its key strengths and limitations.
Advantages of 316 Stainless Steel
The unique composition of 316 stainless steel, particularly its 2–3% molybdenum content, allows it to outperform both 304 and 18/10 stainless steel in several critical ways. These advantages include:
316 offers unmatched protection against saltwater, chlorides, and aggressive chemicals, making it ideal for marine, offshore, and chemical plant use. It resists pitting and crevice corrosion far better than 304.
316 stainless steel retains its mechanical strength and chemical stability in high-temperature conditions. It resists scaling and oxidation up to 870°C, making it suitable for furnace parts, heat exchangers, and industrial ovens.
Thanks to its high tensile strength and fatigue resistance, 316 is widely used in construction, marine structures, automotive parts, and precision CNC machining parts that must endure harsh environments.
316 is biocompatible and non-toxic, making it the preferred material for medical implants, surgical instruments, and food-contact surfaces where chemical leaching must be avoided.
Disadvantages of 316 Stainless Steel
Despite its impressive capabilities, 316 stainless steel is not the right fit for every application. Here are its key drawbacks:
Due to the addition of molybdenum and higher nickel content, 316 is significantly more costly. This can increase overall material costs, especially for high-volume CNC machining services or mass production.
Compared to 304, 316 is harder and more work-hardened, making it more challenging to cut, drill, or mill. This may result in higher tooling costs, slower machining speeds, and greater wear on cutting tools when producing 316 stainless steel CNC machining parts.
While 316 is generally weldable, weld decay—localized corrosion around welds—can occur if proper post-weld cleaning and passivation are not performed. This is especially a concern in pressure vessels or sanitary environments.
Although 316 is tough, its formability is slightly lower than that of 304. This makes it less ideal for components requiring deep drawing or complex bending without cracking.
Here's a clear and concise comparison table summarizing the advantages and disadvantages of 316 stainless steel—perfect for professionals evaluating material options for CNC machining parts:
316 Stainless Steel: Advantages vs. Disadvantages
| Advantages |
Disadvantages |
| Exceptional corrosion resistance, especially in marine and chloride-rich environments | Higher cost than 304 and 18/8 stainless steel |
| Maintains strength and integrity at high temperatures | More difficult to machine due to hardness and work-hardening tendency |
| Suitable for heavy-duty applications: construction, marine, automotive | Weldable, but susceptible to weld rot and corrosion if not treated properly |
| Biocompatible and non-reactive — ideal for food, medical, and pharmaceutical use | Less ductile than 304 — not ideal for deep drawing or complex shaping |
This format allows quick understanding for engineers, buyers, and CNC machining professionals comparing 316 stainless steel CNC machining parts with other alloys.
Advantages and Disadvantages of 304 Stainless Steel
304 stainless steel is the most common and cost-effective austenitic stainless steel used in both industrial and consumer applications. Known for its good corrosion resistance, high strength, and excellent formability, 304 is often the go-to material for general-purpose components. However, while it offers excellent value, it does have some limitations, particularly in extreme or corrosive environments. This section outlines its key advantages and disadvantages to help users determine if it’s the right choice for their CNC machining parts needs.
Advantages of 304 Stainless Steel
304 stainless steel strikes a strong balance between performance and price, which is why it is one of the most widely used materials in CNC machining services, food equipment, and structural fabrication. Its core advantages include:
Although 316 offers better corrosion resistance, 304 has slightly higher tensile strength, making it more suitable for parts where structural load is a primary concern.
304 is the most popular stainless steel grade worldwide. Its widespread availability ensures consistent supply, fast lead times, and broad compatibility with existing manufacturing processes.
As it contains less nickel and no molybdenum, 304 is more affordable than both 316 and 18/10 stainless steel. This makes it ideal for cost-sensitive CNC machining parts that don’t require top-tier corrosion resistance.
Disadvantages of 304 Stainless Steel
While versatile and economical, 304 stainless steel has some drawbacks, especially when used in harsh or chemically aggressive environments. These include:
304 handles everyday moisture, humidity, and mild chemicals well, but it can corrode in saltwater or high-chloride environments, making it unsuitable for marine or coastal applications.
While it can handle elevated temperatures, prolonged exposure above 425°C (797°F) can degrade the protective oxide layer, increasing the risk of corrosion or scaling.
The surface of 304 is relatively soft compared to harder stainless steels, making it vulnerable to scratches and surface abrasions, especially in high-contact or decorative applications.
Thermal cycling or exposure to extreme temperature swings can lead to material fatigue, microcracks, and eventually corrosion—particularly in weld zones or formed areas.
Here's a clear and professional table summarizing the advantages and disadvantages of 304 stainless steel for easy reference:
304 Stainless Steel: Advantages vs. Disadvantages
| Advantages |
Disadvantages |
| Higher tensile strength than 316 | Corrodes in saltwater and high-chloride environments |
| Widely used and readily available | Prone to corrosion above 425°C |
| Low cost compared to 316 and 18/10 | Surface scratches easily |
| Good general corrosion resistance | Susceptible to damage from extreme heat and cold cycles |
This format helps engineers and buyers quickly evaluate 304 stainless steel CNC machining parts for their applications.
Choosing the right stainless steel grade depends largely on the intended application, environmental conditions, and performance requirements. The three popular grades—18/10, 316, and 304 stainless steel—each offer unique advantages that make them suitable for a variety of industries and uses. This section focuses on the practical applications of 18/10 stainless steel, illustrating why it remains a popular choice for both consumer and industrial products.
18/10 Stainless Steel: Uses and Applications
Thanks to its balanced combination of corrosion resistance, durability, and aesthetic appeal, 18/10 stainless steel is widely used in many industries. Its hygienic and biocompatible nature further extends its reach into medical and food-related sectors. Common uses include:
Its excellent resistance to rust and ease of cleaning make 18/10 stainless steel ideal for kitchen cookware that must withstand frequent use and exposure to heat and moisture.
The strength and ability to hold a polished finish ensure that cutlery remains sharp, durable, and visually appealing over time.
From refrigerators to coffee makers, 18/10 stainless steel offers durability and a sleek appearance favored in modern kitchen designs.
Its corrosion resistance and attractive finish make it a preferred material for visible architectural parts that face environmental exposure.
Used where corrosion resistance and mechanical strength are needed to withstand weather and mechanical stresses.
Its biocompatibility and ease of sterilization make 18/10 stainless steel well-suited for surgical instruments and dental tools.
The material's strength and weather resistance contribute to long-lasting, safe, and visually appealing building components.
18/10 stainless steel’s non-reactive surface prevents contamination and degradation when in contact with food products and chemicals.
Used in vehicle parts and infrastructure where durability and corrosion resistance are critical.
Its resistance to moisture and temperature fluctuations suits refrigeration equipment and components.
The combination of strength and corrosion resistance supports a variety of heavy-duty industrial applications.
The alloy's shine, durability, and skin safety make it a popular choice in fashion accessories.
Here's a clear, organized table summarizing the uses and applications of 18/10 stainless steel:
18/10 Stainless Steel: Uses, Applications, and Reasons
| Industry/Use |
Examples |
Reason for Application |
| Cookware | Pots, pans, cooking utensils | Excellent corrosion resistance, easy to clean, durable |
| Cutlery | Forks, knives, spoons | Strong, holds polished finish, corrosion resistant |
| Kitchen Appliances | Refrigerators, coffee makers, mixers | Durable, hygienic, attractive surface |
| Architectural Elements | Window frames, trim components | Corrosion resistant, visually appealing |
| Automotive Parts | Grilles, exhaust pipes, ductwork, trim, body panels | Strong, resists weathering and mechanical stress |
| Medical and Dental Equipment | Surgical instruments, dental tools | Biocompatible, easy to sterilize, hygienic |
| Building Materials | Roofing, cladding, handrails | Weather resistant, strong, long-lasting |
| Food and Chemical Industry | Tanks, cans, pipes | Non-reactive, prevents contamination |
| Transportation | Vehicle parts and infrastructure | Durable, corrosion resistant |
| Refrigeration | Refrigeration equipment components | Resists moisture and temperature fluctuations |
| Industrial Machinery and Tools | Machinery parts, tools, equipment | Strong, corrosion resistant |
| Jewelry | Watches, bracelets, rings, earrings | Durable, skin safe, shiny appearance |
316 Stainless Steel: Uses and Applications
316 stainless steel is renowned for its superior corrosion resistance and durability in harsh environments. This makes it an essential material in industries where exposure to chemicals, saltwater, and high temperatures is common. Its excellent mechanical properties and resistance to pitting and crevice corrosion extend its usefulness to a variety of heavy-duty and specialized applications. Below are some of the most common uses of 316 stainless steel.
316 Stainless Steel: Uses and Applications
| Industry/Use |
Examples |
Reason for Application |
| Marine | Ship components, offshore platforms | Exceptional resistance to saltwater corrosion and biofouling |
| Chemical Processing Equipment | Reactors, tanks, piping | Resistant to aggressive chemicals and acids |
| Heat Exchangers | Industrial heat exchangers | Maintains integrity at high temperatures, resists scaling |
| Furnace Components | Furnace parts, high-temp equipment | Withstands oxidation and thermal stress at elevated temps |
304 Stainless Steel: Uses and Applications
304 stainless steel is the most widely used stainless steel grade due to its versatility, good corrosion resistance, and cost-effectiveness. It is a popular choice for many industries that require reliable performance in moderate environments. Its ease of fabrication and availability make it ideal for a variety of everyday and industrial applications. Below are some typical uses for 304 stainless steel.
304 Stainless Steel: Uses and Applications
| Industry/Use |
Examples |
Reason for Application |
| Sinks | Kitchen and bathroom sinks | Corrosion resistant, easy to clean, durable |
| Kitchen Equipment | Counters, shelves, appliances | Hygienic, withstands moisture and food acids |
| Tables | Food preparation and work tables | Strong, corrosion resistant, easy to maintain |
| Dairy Products | Processing and storage equipment | Non-reactive, prevents contamination |
| Food | Food processing machinery | Safe for food contact, corrosion resistant |
| Brewing | Brewing tanks and piping | Resistant to acids and chemicals in brewing processes |
Understanding the physical and mechanical properties of 18/10, 316, and 304 stainless steel is essential when selecting the best material for specific CNC machining parts and industrial applications. Each alloy offers distinct characteristics that influence performance, durability, and processing ease. Below is a detailed comparison of key properties to help engineers and buyers make informed decisions.
Comparison of Properties
| Property |
18/10 Stainless Steel |
316 Stainless Steel |
304 Stainless Steel |
| Density (g/cm³) |
~8.0 | ~8.0 | ~8.0 |
| Tensile Strength (MPa) |
515–620 | 515–690 | 515–690 |
| Melting Point (℃) |
1400–1450 | 1375–1400 | 1375–1400 |
| Modulus of Elasticity (GPa) |
190 | 193 | 193 |
| Resistivity (Ω·m) |
~7.2 × 10⁻⁷ | ~7.4 × 10⁻⁷ | ~7.2 × 10⁻⁷ |
| Thermal Conductivity (W/mK) |
16 | 16 | 16 |
| Thermal Expansion (1/K) |
~16 × 10⁻⁶ | ~16 × 10⁻⁶ | ~17 × 10⁻⁶ |
| Elongation at Break (%) |
40–60 | 40–60 | 40–60 |
| Hardness (Rockwell B) |
70–85 | 70–85 | 70–85 |
| Corrosion Resistance |
Good for general use, less than 316 | Excellent, especially in marine environments | Good, less resistant to chlorides |
| Magnetic Properties |
Generally non-magnetic | Generally non-magnetic | Generally non-magnetic |
| Formability |
Excellent | Good | Excellent |
| Machinability (Annealed) |
Moderate | Lower due to hardness | Higher machinability |
Selecting the right stainless steel grade for CNC machining depends on the specific application requirements, environmental conditions, budget, and performance expectations. Each grade—18/10, 316, and 304 stainless steel—has unique characteristics that make it better suited for particular uses. Understanding when to choose each can save costs and improve the durability and functionality of the final product.
When to Choose 18/10 Stainless Steel for Machining?
18/10 stainless steel is ideal for applications requiring a balance of corrosion resistance, durability, and aesthetic appeal. It is widely used in kitchenware, cutlery, and decorative architectural elements where hygiene and appearance matter. Its good machinability makes it a cost-effective choice for manufacturing 18/10 stainless steel CNC machining parts that will be exposed to everyday moisture and mechanical stress but not extreme chemical or marine environments.
When to Choose 304 Stainless Steel Machining?
304 stainless steel is a versatile, economical option perfect for general-purpose machining. It is suitable for applications that need good corrosion resistance in moderate environments, such as food processing equipment, kitchen sinks, and industrial machinery. Due to its widespread availability and ease of fabrication, 304 is often preferred for 304 stainless steel CNC machining parts where cost-efficiency and good mechanical strength are priorities.
When to Choose 316 Stainless Steel Machining?
316 stainless steel is the top choice for harsh or highly corrosive environments, such as marine applications, chemical processing, and medical devices. Its superior corrosion resistance to chlorides and high temperatures makes it indispensable where performance cannot be compromised. Though more expensive and harder to machine, 316 stainless steel CNC machining parts ensure longevity and reliability in demanding settings.
Here's a clear and concise comparison table to help users quickly decide when to choose 18/10, 304, or 316 stainless steel for CNC machining:
How to Choose 18/10, 316, and 304 Stainless Steel for CNC Machining
| Steel Grade |
Best For |
Reason to Choose |
| 18/10 Stainless Steel |
Kitchenware, cutlery, decorative parts, appliances | Excellent corrosion resistance, aesthetic appeal, hygienic, good machinability in non-extreme conditions |
| 304 Stainless Steel |
Food equipment, industrial parts, sinks, tables, dairy and brewing equipment | Affordable, widely available, good corrosion resistance, easy to machine and weld |
| 316 Stainless Steel |
Marine parts, chemical equipment, medical tools, harsh environments | Superior corrosion resistance (especially against chlorides), durable under heat, ideal for critical parts |
This table simplifies the material selection process for engineers, purchasers, and CNC machining factories seeking the most suitable stainless steel for their specific parts or services.
As a leading CNC machining factory, VMT specializes in the precision manufacturing of stainless steel components using a wide range of materials, including 18/10, 316, and 304 stainless steel. With decades of experience and a deep understanding of material behavior, machining techniques, and industry requirements, VMT is committed to delivering parts that meet the highest standards of quality, performance, and reliability.
VMT’s factory is equipped with advanced multi-axis CNC machining centers, automated inspection systems, and a team of skilled engineers who ensure every part is produced to exact customer specifications. Whether it's small-batch prototyping or high-volume production, VMT offers flexible solutions tailored to various industries including automotive, medical, food processing, marine, architecture, and electronics.
When customers choose VMT for their stainless steel CNC machining parts, they benefit from:
By partnering with VMT, customers gain a dependable supplier for complex stainless steel components that demand high strength, corrosion resistance, and flawless machining. Whether you need 18/10 stainless steel CNC machining parts for consumer goods, 316 stainless steel CNC machining parts for marine or chemical environments, or 304 stainless steel CNC machining parts for general industrial use—VMT delivers precision and durability at scale.
Choosing between 18/10, 316, and 304 stainless steel depends heavily on your application’s environmental demands, budget, and mechanical performance requirements. While all three grades offer durability, corrosion resistance, and machinability, each serves a different purpose:
For engineers, procurement managers, or designers sourcing CNC machining parts, understanding these distinctions helps optimize performance and reduce long-term costs. Partnering with experienced CNC machining factories like VMT ensures not only the correct material selection but also precision manufacturing and consistent quality.
VMT offers end-to-end CNC machining services, specializing in stainless steel CNC machining parts using all major grades—including 18/10, 316, and 304 stainless steel. With advanced equipment, expert teams, and rigorous quality control, VMT helps clients across industries produce parts that last longer, perform better, and meet exact specifications.
Need help choosing the right stainless steel for your project? Contact VMT today and get expert advice with precision CNC machining support.
Which grade of stainless steel is better, 304 or 316?
It depends on your application. 316 stainless steel offers better corrosion resistance, especially in marine or chemical environments, making it the better choice for harsh conditions. However, 304 stainless steel is more cost-effective and suitable for general-purpose uses with moderate corrosion risk.
Is 304 stainless steel cookware better than 316 stainless steel?
For most kitchens, 304 stainless steel cookware is more than sufficient. It’s durable, resistant to food acids, and widely available. 316 stainless steel cookware offers better resistance to salt and acid corrosion, but it comes at a higher price, and is typically used in professional or marine settings.
Which is better, 18-10 or 304 stainless steel?
18/10 stainless steel is actually a type of 304 stainless steel. The "18/10" refers to its composition: 18% chromium and 10% nickel, enhancing its corrosion resistance and shine. So technically, 18/10 is a high-grade version of 304 stainless steel, and often preferred in cookware and cutlery.
Why is 316 more expensive than 304?
316 stainless steel contains molybdenum, which significantly improves its corrosion resistance—especially against chlorides and harsh chemicals. This added alloying element increases both performance and cost compared to 304 stainless steel.
Is 18-10 stainless steel the same as 316?
No. 18/10 stainless steel is a variant of 304 stainless steel, while 316 stainless steel contains molybdenum for superior corrosion resistance. They may look similar but are chemically and functionally different.
Is 304 or 316 stainless steel better for food use?
Both are food-safe. 304 stainless steel is more commonly used in food and beverage equipment due to its affordability and good corrosion resistance. 316 stainless steel is used when higher resistance to acids and salts is needed, such as in seafood processing or medical equipment.
Is 18-10 stainless steel cookware good?
Yes, 18/10 stainless steel cookware is considered premium due to its excellent corrosion resistance, strength, and shiny appearance. It’s ideal for daily use and offers long-lasting durability and easy cleaning.
Which is stronger, 18/8 or 316 stainless steel?
316 stainless steel is generally stronger and more corrosion-resistant than 18/8 stainless steel. While both contain chromium and nickel, 316 also includes molybdenum, enhancing strength and chemical resistance.
Does 304 stainless steel rust?
304 stainless steel is corrosion-resistant but not completely rust-proof. In environments with high salt or chlorine (like seawater), it may develop surface rust over time. For better resistance, 316 stainless steel is recommended.
Which grade of stainless steel is best?
The “best” grade depends on the application:
How long does 304 stainless steel last?
With proper care, 304 stainless steel can last for decades. Its lifespan depends on environmental conditions and exposure to corrosive elements, but in standard environments, it offers excellent long-term durability.
Is 304 stainless steel better for drinking water than 316 stainless steel?
Both are safe, but 316 stainless steel offers better performance in environments with chlorides or harsh chemicals. For regular household water systems, 304 stainless steel is widely used and considered safe and cost-effective.
Which stainless steel is best for cooking?
18/10 stainless steel is widely regarded as the best for cooking due to its balance of durability, corrosion resistance, and aesthetic appeal. It resists food acids, doesn’t leach, and maintains its polish over time.
Is 188 stainless steel good or bad?
188 stainless steel is another designation for a chromium-nickel stainless steel similar to 18/8. It is commonly used in kitchenware and is considered good in terms of corrosion resistance and durability, though not as corrosion-resistant as 316.
Will 304 stainless steel rust in salt water?
Yes, over time 304 stainless steel can corrode in saltwater environments due to chloride exposure. For saltwater resistance, 316 stainless steel is a better choice.
How to check if stainless steel is 304 material?
You can identify 304 stainless steel using:
Is 304 stainless steel easy to scratch?
Yes. While 304 stainless steel is tough, it can scratch with abrasive use or improper cleaning. Brushed finishes are more scratch-resistant than mirror finishes.
Are 18-10 and 316 the same?
No. 18-10 stainless steel is a type of 304 stainless steel (18% chromium, 10% nickel). 316 stainless steel includes molybdenum and offers better corrosion resistance in aggressive environments.
How durable is 18-10 stainless steel?
18-10 stainless steel is highly durable, resistant to rust and oxidation, and maintains its shine and structural integrity even with daily use in kitchens or architectural elements.
Is stainless steel cookware 18/10 or 316?
Most high-quality cookware is made from 18/10 stainless steel. While 316 stainless steel is more corrosion-resistant, it’s typically reserved for marine, medical, or specialized industrial applications due to its cost.
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