201
Data verified201 is a chromium-manganese austenitic stainless steel in which manganese and nitrogen replace part of the nickel of 304. It work-hardens rapidly and offers higher strength than 304, but lower corrosion resistance and formability.
Chemical composition
| Element | Content (%) |
|---|---|
| C | ≤0.15 |
| Si | ≤1.00 |
| Mn | 5.50–7.50 |
| P | ≤0.060 |
| S | ≤0.030 |
| Cr | 16.00–18.00 |
| Ni | 3.50–5.50 |
| N | ≤0.25 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Delivery condition | Annealed |
| Hardness | ≤241 HB (annealed) |
| Tensile strength | 655–860 MPa |
| Yield strength | ≥310 MPa |
| Density | 7.80 g/cm³ |
Heat treatment
Solution anneal 1010–1120 °C, rapid cool (water or air). Not hardenable by heat treatment.
Equivalent grades
| Standard | Designation |
|---|---|
| din | 1.4372 |
| aisi | 201 |
| jis | SUS201 |
| gb | 12Cr17Mn6Ni5N |
Compare side by side: 201 vs 202 · 201 vs 304
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Cookware, kitchen sinks, hose clamps, trailer and railcar trim, formed structural parts.
Processing: Formable but needs more power than 304 due to fast work hardening; weldable by standard methods; machinability similar to 304.
FAQ
- Can 201 replace 304?
- Only in mild indoor service. 201 has less nickel and lower pitting resistance, so it rusts sooner outdoors or near chlorides; 304 remains the safe general-purpose choice.
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Ask for a quotationVisit NasteelSource: ASTM A240 / EN 10088 published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.