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CNC machining materials

CNC machining in Stainless steel

High tensile strength, corrosion and temperature resistant. Stainless steel alloys have high strength, ductility, wear and corrosion resistance. They can be easily welded, machined and polished.

Order CNC machined Stainless steel parts

Description

Applications

CNC machining produces parts with excellent mechanical properties, accuracy and repeatability from metal and plastic. 3-axis & 5-axis CNC milling available.

Strengths

Excellent mechanical properties,High accuracy & repeatabillity

Weaknesses

Greater geometry restrictions than 3D printing

Characteristics

Price
Lead Time

< 10 days

Wall Thickness

0.75 mm

Tolerances

±0.125mm (±0.005″)

Max part size

200 x 80 x 100 cm

Available material grades

Stainless steel 303 | 1.4305 | X8CrNiS18-9

Stainless steel 303 (CNC) has excellent toughness, but lower corrosion resistance than 304. Ideal for high volumes, due to its excellent machinability.

Stainless steel 316/316L | 1.4401/1.4404 | X5CrNiMo17-12-2/X2CrNiMo17-12-2

Stainless steel 316L (CNC) has similar mechanical properties to 304, with higher corrosion and chemical resistance. Ideal for marine applications.

Stainless steel 304/304L | 1.4301/1.4307 | X5CrNi18-10/X2CrNi18-9

Stainless steel 304L (CNC) has excellent mechanical properties and good machinability. Resistant to most environments and corrosive media.

Stainless steel 15-5 | 1.4545 | X5CrNiCu15-5

Stainless steel 15-5 has a higher toughness than 17-4, better corrosion resistance and transverse properties compared to other similar martensitic grades.

Stainless steel 301 | 1.4310 | X10CrNi18-8

Stainless steel 301 is corrosion resistant similar to Stainless steel 304.

Stainless steel 430 | 1.4016 | X6Cr17

Stainless steel 430 is magnetic and corrosion resistant.

Stainless steel 440C | 1.4125 | X105CrMo17

Stainless steel 440C has improved toughness and corrosion resistance due to Carbon and Chromium content.

Stainless steel 420 | 1.4028 | X30Cr13

Stainless steel 420 provides high strength and corrosion resistance. It is the hardest of all stainless steels when hardened.

Stainless steel 2205 Duplex | 1.4462 | X2CrNiMoN 22-5-3

Stainless steel 2205 Duplex (CNC) is the alloy with the highest strength and hardness. Suitable for applications in severe environments up to 300°C.

Stainless steel 416 | 1.4005 | X12CrS13

Stainless steel 416 is magnetic and has a high machinability.

Stainless Steel 17-4 PH | 1.4542 | X5CrNiCuNb16-4 - Annealed state

Stainless steel 17-4 (CNC) - SAE grade 630 - is a precipitation hardening alloy with good corrosion resistance. Can be hardened up to 44 HRC.

Custom Stainless steel parts

Stainless steel is a fully recyclable alloy composed of iron, carbon and between 11-18% chromium. This hardens and toughens the steel, increasing its corrosion resistance at high temperatures and preventing rust. Stainless steel is very strong, resistant to corrosion, easy to clean and sterilize—especially useful for medical equipment—resistant to extreme temperatures and great for welding. Our CNC machining services enable you to create custom stainless steel parts for many applications across industries such as energy, medical technology, agricultural, industrial automation, machinery, robotics and construction. With us, your parts are machined directly from the information of a CAD file and a technical drawing, both of which can be uploaded onto our platform.

Stainless steel machine shops

Our broad network of manufacturing partners includes over 240 stainless steel machine shops. This impressive production capacity and variety of machinery let us produce highly complex parts and fulfill nearly every order. Our machine shops can produce custom Stainless steel parts with CNC turning machines and 3- and 5-axis CNC milling machines. Our machine shops offer 11 different types of stainless steel: Stainless steel 304, Stainless steel 316, Stainless steel 303, Stainless steel 17-4PH, Stainless steel 416, Stainless steel 2205 Duplex, Stainless steel 420, Stainless steel 440C, Stainless steel 430, Stainless steel 301, and Stainless steel 15-5.

Stainless steel CNC machining services

We offer a complete stainless steel CNC machining service and can produce complex stainless steel parts with 11 different types of stainless steel. Stainless steel parts are great for applications that require high strength, corrosion resistance, heat tolerance, impact resistance, and overall versatility. We operate almost every kind of CNC mill and turning center, and are able to machine whatever you need, from simple, ‘as-machined’ workholdings to complex, organic geometries with tight tolerances. With our stainless steel CNC machining services, you can choose between 9 different post-processing/surface finishing options, which include bead blasting, polishing, brushing, powder coating and electroless nickel plating.

Stainless steel FAQs

  • What are the material properties of the 300 series family of stainless steel?

    The 300 series family (303, 304, etc.) are austenitic stainless steels (after their crystalline structure) and are the most widely produced grades worldwide. Austenitic stainless grades are known for their high corrosion resistance and high strength across wide temperature ranges. They are not heat-treatable except by cold working, and are generally non-magnetic.
  • What are the material properties of the 400 series family of stainless steel?

    400 series stainless steels are the martensitic family and not as common as austenitic grades. Martensitic steels are extremely strong and tough due to higher carbon content, but more susceptible to corrosion in certain environments. They can be heat-treated to greatly increase their hardness and are magnetic.
  • What types of stainless steel can I machine?

    We offer 11 different types of stainless steel for your CNC machined parts: Stainless steel 304 , Stainless steel 316 , Stainless steel 303 , Stainless steel 17-4PH , Stainless steel 416 , Stainless steel 2205 Duplex , Stainless steel 420 , Stainless steel 440C , Stainless steel 430 , Stainless steel 301 , and Stainless steel 15-5.
  • How thin can you machine stainless steel?

    Thin walls require extra care when CNC machining stainless steel. The absolute minimum thickness is 0.5mm for metals. To minimize costs and machining time, it’s recommended to increase the thickness of thin walls to at least 0.8mm. Unless weight is a determining factor thicker walls are more stable and less costly. Thin features are susceptible to vibration, creating extra complexity and requiring considerably more time in machining operations.
  • Is stainless steel difficult to machine?

    Yes, stainless steels tend to be one of the most difficult metals to work with in CNC machining. Stainless steel gets harder over time, instead of wearing, which combined with the high-heat generation in machining stainless steel, can contribute to tool failure. Getting speeds and feeds right as well as proper tooling is key.
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