VT machining offers CNC Laser Cutting for 431 Stainless Steel (UNS S43100 / 1.4057), typically supplied hardened & tempered. Best corrosion resistance of the martensitic grades with high toughness.
CNC Laser Cutting Notes for 431 Stainless Steel
Fibre-laser cutting of 431 Stainless Steel sheet gives a narrow kerf with minimal burr.
For estimating, a 100 × 100 × 10 mm block of 431 Stainless Steel weighs about 0.77 kg.
Process Data for CNC Laser Cutting 431 Stainless Steel
| Max practical thickness (6 kW fibre) | 20 mm |
|---|---|
| Assist gas | Nitrogen |
| Kerf width | 0.1-0.3 mm |
| Profile tolerance | ±0.1 mm (≤6 mm), ±0.2 mm thicker |
Typical values for 431 Stainless Steel, Hardened & tempered; confirmed on the first part.
431 Stainless Steel Data Relevant to CNC Laser Cutting
| Equivalent designations | UNS S43100 / 1.4057 |
|---|---|
| Key composition | Cr 15-17%, Ni 1.25-2.5% |
| Density | 7.7 g/cm³ |
Typical values; we work to your drawing and mill certificate.
More on CNC Laser Cutting Stainless Steel
Finishing options, quality documentation and general cnc laser cutting guidance for all stainless steel grades are on our CNC Laser Cutting Stainless Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Laser Cutting 431 Stainless Steel
Send a STEP/IGES model or PDF drawing, confirm 431 Stainless Steel and its condition (we usually see it supplied hardened & tempered), the quantity, critical tolerances and any finish or certificate requirements.
431 Stainless Steel in Other Processes
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Send the drawing, the 431 Stainless Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What is CNC Laser Cutting 431 Stainless Steel and how is it done?
CNC Laser Cutting 431 Stainless Steel refers to cNC fiber laser cutting follows a programmed path to cut sheet and plate with a clean, narrow kerf. Applied to 431 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 tolerances can you hold for CNC Laser Cutting 431 Stainless Steel?
Achievable tolerances for 431 Stainless Steel cutting depend on the alloy, geometry and feature size. Laser cutting holds contour tolerances to around ±0.05 mm depending on thickness. Exact figures are confirmed against your drawing callouts.
How clean are the edges produced by CNC Laser Cutting on 431 Stainless Steel?
Laser cutting leaves 431 Stainless Steel with a narrow kerf and a clean, near burr-free edge and only a small heat-affected zone.
Can VT machining make custom 431 Stainless Steel parts to my drawing?
Yes. 431 Stainless Steel cutting 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.
What surface finish is achievable on 431 Stainless Steel with CNC Laser Cutting?
Laser cutting leaves a clean cut face on 431 Stainless Steel with a small heat-affected zone; most parts need little secondary finishing.