410S
Data verified410S is the low-carbon, non-hardening version of 410: with carbon held below 0.08% it does not form brittle martensite in weld heat-affected zones, keeping the ductility and formability that plain 410 loses when welded.
Chemical composition
| Element | Content (%) |
|---|---|
| C | ≤0.08 |
| Si | ≤1.00 |
| Mn | ≤1.00 |
| P | ≤0.040 |
| S | ≤0.030 |
| Cr | 11.50–13.50 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Delivery condition | Annealed |
| Hardness | ≤183 HB (annealed) |
| Tensile strength | ≥415 MPa |
| Yield strength | ≥205 MPa |
| Density | 7.70 g/cm³ |
| Magnetic | Yes |
Heat treatment
Anneal 830–900 °C. The low carbon deliberately prevents hardening — 410S stays soft and ferritic through weld thermal cycles.
Equivalent grades
| Standard | Designation |
|---|---|
| din | 1.4000 |
| aisi | 410S (UNS S41008) |
| gb | 0Cr13 (legacy) |
Compare side by side: 410S vs 410 · 410S vs 410L
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Exhaust system components, petrochemical internals, annealing boxes, rail and bus body structures, welded 12% Cr fabrications.
Processing: Excellent weldability for a stainless grade (no preheat in thin sections), good formability; corrosion resistance is mild-service only, as with all 12% Cr grades.
FAQ
- 410S vs 410 — which for a welded fabrication?
- 410S. Plain 410 hardens in the weld zone and cracks without preheat and post-weld temper; 410S was designed to stay soft and ductile, at the price of lower strength.
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Ask for a quotationVisit NasteelSource: ASTM A240 published ranges (UNS S41008) · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.