CNC machining of Stainless steel

Our company specializes in machining various stainless steels with corrosion resistance, high temperature tolerance, and strength, meeting industrial needs and enhancing product performance.

Stainless steel Material

Different grades of stainless steel offer unique corrosion resistance, high temperature tolerance, and strength, ideal for various industrial applications. Choose the right material to enhance product performance and durability.

Quote within 24 hours
MOQ: 1 piece; sample completed within three days
Various material options (special steel and titanium alloys)
Complete machines: 3-axis, 4-axis, 5-axis CNC lathes, grinders, wire cutting, etc

The max CNC processing size: 6.5 meters; machine accuracy is 0.01mm
Fully transparent production progress follow-up and feedback
Three-dimensional coordinate inspection of products and issuing inspection reports
Tight packaging, safe transportation, fast delivery (DHL Fedex UPS shipping)

Various models of Stainless steel

304 Stainless Steel (AISI 304)

Type: Austenitic Stainless Steel
Composition: 18% Chromium (Cr), 8% Nickel (Ni), trace elements of manganese, silicon, and carbon
Characteristics:
- 304 stainless steel is one of the most widely used austenitic steels due to its excellent balance of corrosion resistance, formability, and cost-effectiveness.
- The material has good resistance to atmospheric and many corrosive environments, though it is susceptible to chloride-induced corrosion.
- It is non-magnetic in the annealed state but may become slightly magnetic when cold worked.
- The material is highly weldable and can be easily processed by machining or forming.
Applications:
- Commonly used in the manufacture of kitchen equipment, medical devices, chemical containers, food processing equipment, and in construction and architecture, such as structural supports and cladding.

316 Stainless Steel (AISI 316)

Type: Austenitic Stainless Steel
Composition: 16% Chromium (Cr), 10% Nickel (Ni), 2% Molybdenum (Mo), trace elements of manganese, silicon, and carbon
Characteristics:
- 316 stainless steel is an enhanced version of 304 steel, with the addition of molybdenum which significantly improves corrosion resistance, especially against chlorides and other harsh chemicals.
- It is highly resistant to pitting and crevice corrosion, which makes it ideal for marine and chemical applications.
- This steel is non-magnetic, but similar to 304, it can become slightly magnetic if cold worked.
- 316 has better high-temperature strength than 304 and can withstand elevated temperatures up to 870°C (1600°F) intermittently.
Applications:
- Widely used in marine environments, chemical processing industries, medical devices, and food production, especially where exposure to corrosive chemicals or seawater is a concern.

304L Stainless Steel (AISI 304L)

Type: Austenitic Stainless Steel (Low Carbon Version of 304)
Composition: 18% Chromium (Cr), 8% Nickel (Ni), lower carbon content
Characteristics:
- 304L is a low-carbon version of 304 stainless steel, with a carbon content limited to a maximum of 0.03%. The lower carbon content prevents carbide precipitation during welding, which helps to avoid intergranular corrosion.
- It retains the same general properties as 304, such as good formability, weldability, and corrosion resistance, but with improved performance in welded structures.
- It is especially useful in applications that involve welding and high-temperature environments.
Applications:
- Commonly used in the aerospace, chemical, and food industries where welding is necessary and intergranular corrosion resistance is important.

316L Stainless Steel (AISI 316L)

Type: Austenitic Stainless Steel (Low Carbon Version of 316)
Composition: 16% Chromium (Cr), 10% Nickel (Ni), 2% Molybdenum (Mo), lower carbon content
Characteristics:
- 316L is the low-carbon version of 316, offering similar advantages but with enhanced weldability and reduced susceptibility to intergranular corrosion.
- The lower carbon content improves the steel’s performance in welded applications, particularly in aggressive environments.
- 316L has superior corrosion resistance compared to 304 and is highly resistant to pitting, crevice corrosion, and stress corrosion cracking, especially in marine and chloride-rich environments.
Applications:
- Commonly used in applications that require high resistance to corrosion, such as in the pharmaceutical, food, and marine industries.

17-4 PH Stainless Steel (AISI 17-4 PH)

Type: Precipitation Hardening Stainless Steel
Composition: 15% Chromium (Cr), 4% Nickel (Ni), 3% Copper (Cu), trace elements of carbon and other elements
Characteristics:
- 17-4PH is a precipitation-hardened stainless steel with excellent strength, hardness, and corrosion resistance, especially in marine and high-temperature environments.
- It is widely used in applications that require both high strength and resistance to corrosion.
- The material is heat-treatable and can achieve high mechanical properties through aging, making it ideal for parts subjected to heavy loads or high temperatures.
Applications:
- Used extensively in the aerospace, chemical, and oil & gas industries, particularly for turbine blades, valves, and other components requiring strength and corrosion resistance.

PH13-8 Mo Stainless Steel

Type: Precipitation Hardening Stainless Steel
Composition: 13% Chromium (Cr), 8% Nickel (Ni), 2% Molybdenum (Mo)
Characteristics:
- PH13-8Mo is a high-strength, corrosion-resistant precipitation-hardened stainless steel, offering enhanced resistance to both oxidation and corrosion in high-temperature environments.
- The addition of molybdenum improves its resistance to pitting corrosion and stress corrosion cracking.
- The material can withstand elevated temperatures up to 315°C (600°F) and still retain high tensile strength and hardness.
Applications:
- Commonly used in the aerospace industry, particularly for components such as aircraft landing gear, and in the oil and gas industry for high-stress applications.

SAF 2205 Duplex Stainless Steel

Type: Duplex Stainless Steel (austenitic-ferritic structure)
Composition: 22% Chromium (Cr), 5% Nickel (Ni), 3% Molybdenum (Mo), and other elements
Characteristics:
- SAF 2205 is a duplex stainless steel that combines both austenitic and ferritic phases, providing a unique balance of strength, corrosion resistance, and toughness.
- It has superior resistance to stress corrosion cracking (SCC) compared to austenitic stainless steels and excellent resistance to pitting and crevice corrosion.
- SAF 2205 is stronger than 304 and 316 stainless steels due to its high chromium and molybdenum content, offering better resistance to chloride-induced corrosion.
Applications:
- It is used in the oil and gas, chemical processing, and marine industries, particularly for high-stress applications and environments requiring excellent resistance to chloride stress corrosion cracking.

201 Stainless Steel (AISI 201)

Type: Austenitic Stainless Steel
Composition: 16-18% Chromium (Cr), 3.5-5.5% Nickel (Ni), 0.15% Carbon (C), 0.25-0.75% Manganese (Mn), trace amounts of Silicon (Si)
Characteristics:
- Compared to 304, AISI 201 has higher strength due to the addition of manganese and nitrogen. This results in a stronger material for structural applications where cost is a significant concern.
- While it offers good resistance to general corrosion, especially in mildly acidic or neutral environments, its corrosion resistance is not as high as 304 or 316, particularly in environments rich in chlorides or acids.
- As an austenitic steel, it is generally non-magnetic; however, when cold-worked, it may exhibit some magnetic properties, which is important in some industrial applications.
- It is more challenging to weld than 304 due to its lower nickel content, but it can still be welded effectively with the right techniques. It’s also more susceptible to intergranular corrosion when improperly processed.
- Due to its lower nickel content, AISI 201 is more cost-effective than 304 and 316 stainless steels, which makes it a popular choice for applications where cost is a critical factor.
Applications:
- Used in appliances, kitchen equipment, automotive parts, decorative elements, and other applications requiring good mechanical properties at a lower cost.

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FAQs

What types of stainless steel materials can your company process?

We can process a wide range of stainless steel alloys, including 304, 316, 2205, 17-4PH, and more. Additionally, we can provide customized material solutions based on client requirements. Whether the application requires corrosion resistance, high-temperature resistance, or strength, we select the optimal material to ensure each part meets the desired mechanical properties and performance.

How does your company ensure machining accuracy and tolerance?

We guarantee machining accuracy as tight as ±0.005mm, with rigorous quality control processes to ensure consistency in tolerances. Our quality assurance includes CMM (Coordinate Measuring Machine), laser scanners, and other high-precision inspection tools to verify dimensions, shapes, and surface finishes meet customer specifications. For special precision requirements, we provide tailored solutions to meet the highest standards.

How do you calculate your pricing? Do you offer volume discounts?

Our pricing is based on factors such as the complexity of the part, machining difficulty, required tolerances, batch size, and material type. We provide precise cost analysis and offer volume discounts or customized pricing policies for long-term clients. For large orders or ongoing projects, we offer priority scheduling and competitive pricing.

What after-sales services and technical support do you provide?

We offer comprehensive after-sales support, including product quality tracking, technical assistance, and rework services. If any issues arise during the use of the product, our engineering team provides remote technical support or on-site assistance as needed. We also offer free rework or replacement for any products that do not meet quality standards, ensuring customer satisfaction.

Is CNC machining of stainless steel expensive?

The cost of CNC machining stainless steel is influenced by various factors. As a supplier with a complete supply chain, we have full control over the material sourcing, machining processes, and production management. By managing the entire production workflow, we can maximize material efficiency, optimize processes, and reduce costs associated with intermediaries. This allows us to offer more competitive pricing to our customers, ensuring lower costs without compromising on quality.

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