VT machining offers CNC Bending for 309 Stainless Steel (UNS S30900 / 1.4828), typically supplied annealed. Higher Cr/Ni for oxidation resistance to ~1000 °C.
CNC Bending Notes for 309 Stainless Steel
309 Stainless Steel bends to a tight inside radius (about 1× thickness) in this condition.
For estimating, a 100 × 100 × 10 mm block of 309 Stainless Steel weighs about 0.79 kg.
Process Data for CNC Bending 309 Stainless Steel
| Minimum inside bend radius | ~1.5 × t (across the grain) |
|---|---|
| Press force, 2 mm sheet, V16 die | ~18.6 t per metre |
| Typical springback at 90° | 0.5-1° |
| Angle tolerance | ±0.5° (CNC back-gauge, angle measurement on first part) |
Typical values for 309 Stainless Steel, Annealed; confirmed on the first part.
309 Stainless Steel Data Relevant to CNC Bending
| Equivalent designations | UNS S30900 / 1.4828 |
|---|---|
| Typical supply condition | Annealed |
| Hardness (typical) | ≤95 HRB |
| Tensile strength | ≥515 MPa |
Typical values; we work to your drawing and mill certificate.
More on CNC Bending Stainless Steel
Finishing options, quality documentation and general cnc bending guidance for all stainless steel grades are on our CNC Bending Stainless Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Bending 309 Stainless Steel
Send a STEP/IGES model or PDF drawing, confirm 309 Stainless Steel and its condition (we usually see it supplied annealed), the quantity, critical tolerances and any finish or certificate requirements.
309 Stainless Steel in Other Processes
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Send the drawing, the 309 Stainless Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
How clean are the edges produced by CNC Bending on 309 Stainless Steel?
Machined 309 Stainless Steel edges are clean and to specification; edge-break or deburring is added when your drawing calls for it.
What material thickness or size range suits CNC Bending 309 Stainless Steel?
We form 309 Stainless Steel sheet and plate to your developed flat pattern and bend sequence.
What is the typical lead time and minimum order for CNC Bending 309 Stainless Steel?
CNC Bending prototypes for 309 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.
What surface finish is achievable on 309 Stainless Steel with CNC Bending?
Surface finish on 309 Stainless Steel is controlled to your specification; we confirm the achievable Ra against your callout.
What is CNC Bending 309 Stainless Steel and how is it done?
CNC Bending 309 Stainless Steel refers to cNC bending forms sheet metal to precise angles using a programmed press brake and back-gauge. Applied to 309 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.
Can VT machining make custom 309 Stainless Steel parts to my drawing?
Yes. 309 Stainless Steel forming 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.