Custom Stainless Steel CNC Machining Services

Precision CNC machining for Stainless Steel 304, 316L, 17-4PH, and 303.

Machining stainless steel requires rigid equipment and specialized tooling strategies to overcome challenges like work hardening and high thermal generation. Our facility is equipped with high-torque CNC centers capable of holding tight tolerances on tough alloys.

Available Stainless Steel Grades

Our engineering team can assist in selecting the specific alloy that balances corrosion resistance, mechanical strength, and machinability for your application.

Stainless Steel 304 / 304L

Grade 304 is the most widely specified austenitic stainless steel. It offers excellent corrosion resistance in atmospheric and chemical environments and provides high ductility. The 304L variant has a lower carbon content, which minimizes carbide precipitation during welding, making it the standard choice for welded assemblies.

Stainless Steel 316 / 316L

316 stainless steel contains added Molybdenum (2-3%), which significantly increases its resistance to pitting and crevice corrosion, particularly in chloride-rich environments (saltwater) and acidic solutions. Like 304, the 316L grade is optimized for welding.

Stainless Steel 303

Grade 303 is modified with the addition of sulfur to improve machinability. The sulfur allows chips to break easily, allowing for faster cutting speeds and reduced tool wear compared to 304. However, the sulfur content reduces its corrosion resistance and toughness. Note: 303 is not recommended for welding.

Stainless Steel 17-4 PH

17-4 PH (AISI 630) is a martensitic precipitation-hardening stainless steel. It combines the corrosion resistance of 304 with the high tensile strength and hardness of carbon steel. Its mechanical properties can be adjusted through heat treatment (aging).

FAQs About CNC Machining Services

No. We support projects of all sizes, from a single prototype unit to low-volume production runs.

Standard lead times are typically 10–15 business days. Expedited services (Rapid Prototyping) can be completed in as little as 3–5 business days, depending on part complexity and material availability.

In most cases, we source materials from our approved suppliers to ensure quality control. However, we can machine customer-supplied materials for specialized alloys or specific requirements upon engineering review.

Unless otherwise specified, our general tolerance standard is ISO 2768-m (±0.125 mm) for metals and ±0.25 mm for plastics. Precision tolerances ±0.005 mm are achievable but must be explicitly stated in 2D technical drawings.

Our facility can accommodate parts up to 4000 x 1500 x 600 mm for milling and Ø200 mm x 500 mm for turning.

Yes. We can install inserts (e.g., Helicoils, PEM fasteners) and perform basic mechanical assembly of machined components prior to shipment.

To provide an accurate quote, we require a 3D CAD file (STEP, IGES, or X_T format). If the part has threaded holes, tight tolerances, or specific surface finish requirements, a 2D PDF drawing must also be provided.

We take IP protection seriously. All files are stored securely, and we are willing to sign a Non-Disclosure Agreement (NDA) prior to receiving your data.

Yes. We can provide material certificates (COA) and dimensional inspection reports upon request. Please specify this requirement when placing your order.

We ship globally using major carriers (DHL, FedEx, UPS). Shipping terms are typically Ex Works (EXW) or DAP, depending on the agreement.

Start your manufacturing project today

No Minimum Order Quantity (MOQ). Strict quality control. Fast global shipping.