VT machining offers CNC Turning for 430 Stainless Steel (UNS S43000 / 1.4016 / SUS430), typically supplied annealed. Ferritic, nickel-free and magnetic; cheaper than 304 with fair corrosion resistance.
CNC Turning Notes for 430 Stainless Steel
On the lathe 430 Stainless Steel needs chip-breaker inserts and constant chip load to avoid long, stringy swarf.
For estimating, a 100 × 100 × 10 mm block of 430 Stainless Steel weighs about 0.77 kg.
Starting Parameters for CNC Turning 430 Stainless Steel
| Cutting speed (carbide) | 145-265 m/min |
|---|---|
| Feed | 0.08-0.25 mm/rev |
| Spindle speed, Ø25 mm bar | 1850-3370 rpm |
| Insert / tool class | ISO M — positive-rake PVD/CVD carbide |
| Coolant | Flood emulsion (8-10%) or high-pressure coolant |
Starting values for 430 Stainless Steel, Annealed; optimised on the first article.
430 Stainless Steel Data Relevant to CNC Turning
| Equivalent designations | UNS S43000 / 1.4016 / SUS430 |
|---|---|
| Key composition | Cr 16-18% |
| Typical supply condition | Annealed |
| Hardness (typical) | ≤88 HRB |
| Machinability rating | 54% (AISI B1112 = 100%) |
Typical values; we work to your drawing and mill certificate.
How 430 Stainless Steel Differs
Ferritic, nickel-free and magnetic; cheaper than 304 with fair corrosion resistance.
Typical applications: Appliance panels, trim, magnetic parts.
430 Stainless Steel vs Similar Grades
| 430 Stainless Steel | 420 Stainless Steel | 431 Stainless Steel | 416 Stainless Steel | |
|---|---|---|---|---|
| Key composition | Cr 16-18% | Cr 12-14%, C 0.15-0.4% | Cr 15-17%, Ni 1.25-2.5% | Cr 12-14%, S ≥0.15% |
| Hardness | ≤88 HRB | Up to ~50 HRC | ~25-40 HRC | ~20 HRC annealed; up to ~40 HRC |
| Tensile (MPa) | ≥450 | ≥655 annealed | ~860 (H&T) | ≥485 annealed |
| Machinability % | 54 | 45 | 45 | 85 |
| Typical use | Appliance panels, trim, magnetic parts | Surgical instruments, molds, knife blades | Pump shafts, marine fittings, aircraft fasteners | Screw-machine parts, valve stems, gears, motor shafts |
More on CNC Turning Stainless Steel
Finishing options, quality documentation and general cnc turning guidance for all stainless steel grades are on our CNC Turning Stainless Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Turning 430 Stainless Steel
Send a STEP/IGES model or PDF drawing, confirm 430 Stainless Steel and its condition (we usually see it supplied annealed), the quantity, critical tolerances and any finish or certificate requirements.
430 Stainless Steel in Other Processes
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Send the drawing, the 430 Stainless Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
Can VT machining make custom 430 Stainless Steel parts to my drawing?
Yes. 430 Stainless Steel turning 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.
How clean are the edges produced by CNC Turning on 430 Stainless Steel?
Machined 430 Stainless Steel edges are clean and to specification; edge-break or deburring is added when your drawing calls for it.
What is CNC Turning 430 Stainless Steel and how is it done?
CNC Turning 430 Stainless Steel refers to cNC turning rotates the workpiece against a single-point tool to produce cylindrical features, threads and grooves. Applied to 430 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.
Why is 430 Stainless Steel a good choice for CNC Turning?
430 Stainless Steel is corrosion resistant, strong and hygienic, which makes it well suited to CNC Turning. We tune the process to the alloy so the finished 430 Stainless Steel turning part meets your dimensional and functional requirements.