Stainless Steel Machining
304/316 stainless precision machined parts — shafts, flanges, fittings and medical components with polishing and passivation.
Overview
Stainless steel offers corrosion resistance, strength and an attractive finish. Our stainless steel CNC machining produces precision shafts, flanges, valve bodies, fittings, fasteners and medical components.
We commonly machine 304/316 (and L grades), free-machining 303, precipitation-hardened 17-4 PH and 440C, with mirror polishing, brushing, passivation and stainless steel CNC turning parts to ±0.01 mm.
Capabilities
Turning & milling
Shafts, flanges, fittings and housings in austenitic and martensitic grades.
Corrosion-resistant grades
304/L and 316/L for general and marine/chemical environments.
High-strength grades
17-4 PH, 420 and 440C where strength, hardness and wear are needed.
Medical & food
Polished, passivated parts suited to medical and food-contact applications.
Fine finishes
Mirror polishing, brushing, bead blasting and electropolishing.
Tight tolerance
±0.01 mm precision CNC parts with full inspection.
| Common grades | 304/L, 316/L, 303, 17-4 PH, 440C |
|---|---|
| Typical tolerance | ±0.01 mm |
| Surface finish | Ra 0.4–1.6 µm (mirror on request) |
| Processes | Turning, milling, 5-axis |
| Treatments | Passivation, polishing, electropolishing |
| Minimum order | 1 piece / prototype |
Available grades
- 304 (1.4301)
- 304L
- 316 (1.4401)
- 316L
- 303
- 410
- 420
- 440C
- 17-4 PH (630)
- 2205 duplex
Common applications
- Medical instruments
- Valve & pump parts
- Food equipment
- Marine fittings
- Fasteners
- Shafts
- Flanges
- Sensors
Frequently asked questions
Which stainless grade should I choose?
304 for general use, 316/L for marine or chemical corrosion, 303 for easy machining, and 17-4 PH or 440C where strength and hardness are needed.
Can you polish stainless parts?
Yes. We provide mirror polishing, brushing, bead blasting and electropolishing, plus passivation.
Do you hold tight tolerances?
Yes. We routinely machine to ±0.01 mm on critical features and verify with CMM.
Do you supply medical-grade stainless?
Yes. We machine 304/316 with the finishes and traceability suited to medical and food contact.
Related services
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