Stainless Steel
Stainless Steel
CNC Machining
Machining 303, 304, 316, 420 and 17-4PH for corrosion-resistant, hygienic, wear-resistant and high-strength components.
✓Support austenitic, martensitic and precipitation-hardening stainless grades
✓Suitable for medical, food, marine, pump, valve and industrial parts
✓CNC turning, milling, 5-axis machining and precision inspection
✓Prototype to production support
Material Grades
Stainless Steel Grades We Machine
303
Free-machining · High efficiency turning
Threaded fittings, bushings, small shafts, connectors and high-volume turned parts.
View Details304
Most versatile · General corrosion resistance
Industrial housings, brackets, covers, food equipment, and general-purpose structural parts.
View Details316
Superior corrosion resistance · Marine / chemical
Valve bodies, pump fittings, marine hardware, medical parts, and chemical process components.
View Details420
Hardenable · Wear-resistant
Pump shafts, valve stems, cutting blades, surgical instruments, and wear-resistant rotating parts.
View Details17-4PH
High strength · Precipitation hardening
Aerospace brackets, high-load fixtures, precision shafts, structural parts, and medical components.
View DetailsMaterial Classification
Stainless Steel by Performance Category
Different stainless grades solve different problems. Choose based on your application environment.
Austenitic
Austenitic Stainless Steel
303 · 304 · 316
Corrosion-resistant parts, food equipment, medical / clean equipment, marine hardware, decorative and appearance-critical components.
Martensitic
Martensitic Stainless Steel
420
Wear-resistant shafts, valve components, surgical / blade-related parts, hardened stainless components for demanding mechanical applications.
Precipitation Hardening
PH Stainless Steel
17-4PH
High-strength structural parts, aerospace brackets, high-load fixtures, precision mechanical parts, and medical / industrial components.
Grade Selection
Grade Comparison: How to Choose
| Grade | Advantage | Corr. | Strength | Machin. | Typical Parts | Best For |
|---|---|---|---|---|---|---|
| 303 | Best machinability | Fittings, bushings, shafts | High-volume turned parts | |||
| 304 | Most versatile | Housings, brackets, covers | General industrial & food | |||
| 316 | Best corrosion resist. | Valves, pumps, marine parts | Marine, chemical, medical | |||
| 420 | Hardenable & wear-resist. | Shafts, blades, valve stems | Wear & hardness needs | |||
| 17-4PH | Highest strength | Brackets, structural parts | High-load applications |
Capabilities
Machining Capabilities for Stainless Steel
CAP / 01
CNC Turning for Stainless Parts
303 / 304 / 316 shafts, bushings, fittings, and connectors turned with controlled heat and chip management for consistent surface finish.
CAP / 02
CNC Milling for Prismatic Stainless
304 / 316 housings, covers, plates, and brackets milled with optimized feeds to manage work hardening and maintain dimensional accuracy.
CAP / 03
5-Axis for Complex Stainless Parts
Multi-face stainless components, impeller-type parts, and complex valve bodies machined in a single setup for positional accuracy.
Product Types
Typical Stainless Steel Parts We Machine
Stainless Steel Shafts
303 · 304 · 420 · 17-4PH
CNC turning + grinding · Pumps, motors, industrial
Valve & Pump Components
316 · 304 · 420
Turning + milling · Fluid control applications
Medical / Clean Equipment
316 · 304
Precision milling · Hygienic surface finish
Food Processing Parts
304 · 316
Passivated surfaces · FDA-compatible materials
Marine Hardware
316
Salt spray resistant · Outdoor / marine grade
Precision Housings & Covers
304 · 316
CNC milling · Appearance-critical enclosures
Fittings & Connectors
303 · 304 · 316
High-volume turning · Threaded and flanged parts
17-4PH Structural Parts
17-4PH
High-strength machining · Aerospace & industrial
Surface & Finish
Surface Finish Options for Stainless Steel Parts
Machined Finish
Standard CNC machined surface with visible tool paths. Suitable for non-appearance internal components, structural parts, and features hidden after assembly.
Brushed Finish
Directional satin finish for a clean, professional look. Common on food equipment, architectural hardware, and visible stainless enclosure panels.
Polishing
Mirror or near-mirror polished surfaces for medical, optical, decorative, and high-cleanliness applications. Electropolishing available for ultra-smooth finishes.
Passivation
Chemical treatment enhancing the natural chromium oxide layer for superior corrosion resistance. ASTM A967 compliant. Essential for medical, food, and marine parts.
Quality & Inspection
Quality Control for Stainless Steel Parts
Stainless steel parts often serve in environments where corrosion, cleanliness, and appearance matter — so quality goes beyond just dimensional checks.
1
Dimensional Inspection for Precision Parts
Critical dimensions, bore fits, thread accuracy, and positional tolerances verified with calibrated instruments and CMM where required.
2
Surface & Appearance Checks
Surface roughness, brushed/polished consistency, and visible surface defects checked for appearance-critical and hygienic parts.
3
Material Traceability Support
Material grade confirmed against order specification. Mill certificates with heat number available for projects requiring traceability.
4
Prototype to Production Consistency
Same quality system from first prototype through recurring production — no process change, no supplier switch, no re-qualification.
Why Choose Us
Why Machine Stainless Steel With Us
Stainless steel is harder to machine than carbon steel — work hardening, galling, and heat management all require the right approach. We handle it every day.
1
Experience Across Corrosion-Resistant & High-Strength Grades
Routine machining of 303, 304, 316, 420, and 17-4PH — with process parameters optimized for each grade's behavior.
2
Suitable for Hygienic, Marine, Industrial & Structural Parts
Parts for food equipment, medical devices, marine hardware, pumps, valves, and high-load structural assemblies.
3
Better Control for Appearance, Precision & Fit
Surface consistency, thin-wall stability, and work hardening managed through cutting strategy — not discovered after the batch is done.
4
Small Batches, Prototypes & Recurring Production
From 1-piece prototypes to ongoing production runs — same facility, same quality system, same engineering team.
Get a Quote
Send Your Drawing.
Get a Quote.
Every enquiry includes a DFM review — tolerance feasibility, material confirmation, and process approach confirmed before production starts. MOQ 1 piece.
24hr
Quote Response
MOQ 1
Prototypes OK
ISO
9001:2015
📐
DFM Review on Every Enquiry
Tolerance feasibility, fixturing strategy, and material confirmation. Specific, actionable feedback — not generic pushback.
🎯
First Article Inspection — Standard
FAI report on every new run. Material certs and surface treatment certs included with every shipment.
🔄
Same Process: Prototype to Production
Process plan from your prototype applies to production batches. No re-qualification when you scale.
⚙
3 / 4 / 5-Axis CNC + Turning
Complex structural parts, shafts, housings, and transmission components. Metals and engineering plastics.
ISO 9001:2015
3/4/5-Axis Milling
CNC Turning
CMM Inspection
Global Delivery