Stainless Steel CNC Machining.
303, 304, 316L, 17-4 PH, and 440C machined for medical, marine, and industrial parts.
Stainless steel is the workhorse of medical, marine, and food-grade parts. It's corrosion resistant and strong, but it work-hardens and galls if it's cut the wrong way. We machine every common grade, from free-machining 303 to hardened 17-4 PH, in our Riviera Beach shop.
What to expect.
- Tolerances
- ±.0005" standard · ±.0001" on critical features
- Processes
- CNC milling and turning, Swiss, wire and sinker EDM
- Finishing
- Passivation, electropolish, bead blast (via qualified vendors)
- Grades
- 303, 304 / 304L, 316 / 316L, 17-4 PH, 420, 440C, 15-5 PH
Getting stainless steel right.
Grade selection
We'll recommend the grade that balances corrosion resistance, strength, and cost during DFM.
Passivation
Coordinated passivation and finishing through qualified outside services.
Hardened work
Heat-treated 17-4 and 440C finished by grinding or EDM where a cutter can't hold size.
- Surgical instruments
- Liquid oxygen canister components
- Marine fittings
- Valve and pump parts
Stainless Steel questions.
What's the difference between 303 and 316 stainless?
303 contains sulfur, so it machines easily but is less corrosion resistant. 316/316L has molybdenum for better corrosion resistance and is common in medical and marine parts, but it's harder to machine.
Can you machine hardened stainless?
Yes. We machine 17-4 PH and 440C before or after heat treat, using EDM or finishing passes where a hardened feature needs it.
Do you passivate stainless parts?
We coordinate passivation and other finishes through qualified outside services, controlled under our quality system.
Quote your stainless steel part.
Answer in 48 hours.
Our engineers review every drawing for manufacturability and return a detailed quote — typically within 48 hours. Confidential, with an NDA on request.
- NDA on request
- DFM feedback included
- Direct line to an engineer