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Custom CNC Machining Stainless Steel
Stainless steel combines corrosion resistance, strength and clean surface performance for demanding parts. Send your drawing to receive a grade recommendation, manufacturing plan and clear quote.
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Mechanical Properties
Typical Stainless Steel Property Ranges
Reference ranges for commonly machined austenitic, martensitic and precipitation-hardening grades.
Final values depend on the alloy, product form and heat-treatment condition specified on the drawing.
Grade Selection
Stainless Steel Grades for Different Working Conditions
Select a grade around corrosion exposure, strength, wear and machining requirements.
Machining Capability
Drawing-Based Stainless Steel Machining Parameters
Final capability is confirmed from the grade, geometry, heat treatment and inspection plan.
Surface Finishing
Finishes for Stainless Steel Parts
Five commonly specified finishes for stainless steel CNC parts.
Gold PVD Coating
Mirror Polishing
Pickling & Passivation
Bead Blasting
Brushed Finish
Machined Projects
Custom CNC Machining Stainless Steel Parts
Prototype, low-volume and repeat orders with machining, finishing and inspection in one workflow.
Machining and Inspection
Production and Quality Equipment
Machining, grinding, EDM and dimensional inspection support controlled stainless steel part production.
Stainless Steel FAQ
Stainless Steel Machining Questions
Is 304 or 316 more machinable?
304 is more machinable than 316 under comparable conditions. The molybdenum in 316 improves chloride resistance but increases cutting resistance. Both grades work-harden, so machining requires sharp carbide tools, rigid workholding, consistent feed and effective coolant.
What problems occur when machining stainless steel, and how are they controlled?
Common issues include work hardening, heat buildup, tool wear, galling, long chips and dimensional movement. These are controlled with rigid setups, sharp positive-rake tools, steady feed without dwelling, suitable chip breakers, sufficient coolant and planned roughing and finishing passes.
What is stainless steel made of?
Stainless steel is an iron-based alloy containing at least 10.5% chromium. Chromium forms a protective passive oxide layer. Nickel, molybdenum, carbon, manganese, silicon and other elements are added to adjust corrosion resistance, strength, hardness, weldability and machinability.
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Get a Stainless Steel Machining Review
Send your drawing, grade, quantity, finish and inspection requirements for a clear manufacturing plan and quote.