Stainless Steel CNC Machining for Large Parts
AS9100 & ISO 9001:2015 Certified | ITAR Registered
Greno Industries provides stainless steel CNC machining services for metal (304, 316, 17‑4 PH, 410) that require more controlled machining due to work hardening and heat generation.
The advantages of our 3 axis and 4 axis CNC milling include simplified toolpaths for reduced heat buildup. With 4 axis mills, rotation reduces repositioning and improves dimensional accuracy.
Why Choose Greno for Stainless Steel Machining?
Machining stainless steel requires an understanding of cutting forces, chip control, and thermal dynamics. Greno Industries delivers the technical precision needed to prevent tool deflection and material distortion.
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Advanced Multi-Axis CNC Workstations: Multi-axis CNC milling and live-tool CNC turning centers designed to handle complex geometries in a single setup.
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Optimized Thermal Management: High-pressure, through-spindle coolant systems that rapidly dissipate heat, ensuring superior surface finishes and preserving material integrity.
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AS9100 & ISO 9001 Certified: Rigorous quality management systems that guarantee 100% material traceability from raw mill certification to final inspection.
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Single-Source Post-Processing: In-house integration of Metal Finishing Services (including heat treating and sand blasting) and Non-Destructive Testing (NDT) to accelerate your supply chain.
Stainless Steel Grades for Precision Machining
We work with a comprehensive spectrum of stainless steel families, adjusting our feeds, speeds, and tooling selections to match the specific characteristics of each alloy.
The table below lists the grades we machine and their UNS numbers and DIN designations.
| Grade | UNS Number | DIN |
|---|---|---|
| A182 F44 | S31254 | X1CrNiMoN20-18-7 |
| A182 F51 | S31803 | X2CrNiMoN22-5-3 |
| A182 F53 | S32750 | X2CrNiMoN25-7-4 |
| A182 F60 | S32205 | X2CrNiMoN22-5-3 |
| A182 F91 | K90901 | X10CrMoVNb9-1 |
| 15-5 PH | S15500 | X5CrNiCuNb15-5 |
| 17-4 PH | S17400 | X5CrNiCuNb 17-4 |
| 304 | S30400 | X5CrNi18-10 |
| 304L | S30403 | X5CrNi18-9 |
| 310 | S31000 | X8 CrNi 25-21 |
| 316 | S31600 | X5CrNiMo17 12-2 |
| 316L | S31603 | X2CrNiMo17 12-2 |
| 321 | S32100 | X6CrNiTi18-10 |
| 347 | S34700 | X6CrNiNb18-10 |
| 410 | S41000 | X12Cr13 |
| 420 | S42000 | X46Cr13 |
| 422 | S42200 | X20CrMoWV12-1 |
| 431 | S43100 | X17CrNi16-2 |
| F6NM | S41500 | X3CrNiMo 13-4 |
Austenitic Stainless Steel (300 Series)
Prized for excellent corrosion resistance and formability, though highly prone to work-hardening.
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Alloys:304/304L (general purpose), 316/316L (marine and chemical grade), and 321/347 (high-temperature stabilized).
Martensitic & Ferritic Stainless Steel (400 Series)
Known for high strength, hardness, and thermal conductivity; often heat-treated post-machining.
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Alloys:410 (wear and corrosion resistant), 416 (free-machining variant), and 440C (extreme hardness and bearing grade).
Precipitation Hardening & Duplex Alloys
Engineered for extreme environments, offering double the strength of austenitic grades alongside superior pitting resistance.
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Alloys:17-4 PH, 15-5 PH, and Duplex 2205.
Multi-Axis CNC Machining Capabilities
We support your project from initial engineering prototypes up through high-volume, repeatable production runs.
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Precision CNC Milling: 3-axis and 4-axis milling capable of cutting deep cavities, thin-walled structures, and intricate valve manifolds.
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Live-Tool CNC Turning: Multi-axis turning centers that combine turning, facing, threading, and cross-drilling into a single continuous cycle to maintain strict concentricity.
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Custom Tooling & Rigid Fixturing: In-house designed workholding systems engineered to eliminate vibration and part movement under heavy industrial cutting loads.
Partner With a Stainless Steel Expert
Don’t let tool wear or material warping derail your production timeline. Partner with a manufacturing team that possesses the heavy-duty machinery, strict certifications, and engineering depth to deliver your parts right the first time.
Contact our engineering and sales department in Scotia, NY today to upload your prints, CAD models, and compliance specifications for a competitive quote.