VT machining offers CNC 4-Axis Machining for 440C Stainless Steel (UNS S44004 / 1.4125 / SUS440C), typically supplied annealed or hardened. Highest hardness/wear resistance of stainless; hardened parts are finish-ground.
CNC 4-Axis Machining Notes for 440C Stainless Steel
Multi-axis machining lets 440C Stainless Steel parts be completed in one or two setups, which improves feature-to-feature accuracy.
For estimating, a 100 × 100 × 10 mm block of 440C Stainless Steel weighs about 0.77 kg.
Starting Parameters for CNC 4-Axis Machining 440C Stainless Steel
| Cutting speed (carbide) | 85-155 m/min |
|---|---|
| Feed per tooth | 0.028-0.088 mm |
| Spindle speed, Ø10 mm end mill | 2710-4930 rpm |
| Insert / tool class | ISO M — positive-rake PVD/CVD carbide |
| Coolant | Flood emulsion (8-10%) or high-pressure coolant |
| Rotary positioning accuracy | ±10 arc-sec (≈ ±0.005 mm at Ø100 mm) |
Starting values for 440C Stainless Steel, Annealed or hardened; optimised on the first article.
Full material data for 440C Stainless Steel (UNS S44004 / 1.4125 / SUS440C) is on the CNC Milling 440C Stainless Steel page.
More on CNC 4-Axis Machining Stainless Steel
Finishing options, quality documentation and general cnc 4-axis machining guidance for all stainless steel grades are on our CNC 4-Axis Machining Stainless Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC 4-Axis Machining 440C Stainless Steel
Send a STEP/IGES model or PDF drawing, confirm 440C Stainless Steel and its condition (we usually see it supplied annealed or hardened), the quantity, critical tolerances and any finish or certificate requirements.
440C Stainless Steel in Other Processes
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Send the drawing, the 440C Stainless Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What surface finish is achievable on 440C Stainless Steel with CNC 4-Axis Machining?
Surface finish on 440C Stainless Steel is controlled to your specification; we confirm the achievable Ra against your callout.
Can VT machining make custom 440C Stainless Steel parts to my drawing?
Yes. 440C Stainless Steel machining is made to order from your CAD/2D drawing. Share your geometry, material grade, tolerance and quantity and we will confirm feasibility, lead time and pricing.
Why is 440C Stainless Steel a good choice for CNC 4-Axis Machining?
440C Stainless Steel is corrosion resistant, strong and hygienic, which makes it well suited to CNC 4-Axis Machining. We tune the process to the alloy so the finished 440C Stainless Steel machining part meets your dimensional and functional requirements.
What is CNC 4-Axis Machining 440C Stainless Steel and how is it done?
CNC 4-Axis Machining 440C Stainless Steel refers to four-axis machining adds a rotary axis for indexed or continuous machining around a part. Applied to 440C Stainless Steel — corrosion resistant, strong and hygienic — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
What is the typical lead time and minimum order for CNC 4-Axis Machining 440C Stainless Steel?
CNC 4-Axis Machining prototypes for 440C Stainless Steel can be produced quickly and scaled to series production. Send your drawing and quantity and we will advise lead time and any minimum order.
Does CNC 4-Axis Machining 440C Stainless Steel require dedicated tooling?
Most 440C Stainless Steel machining work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.