201 stainless steel
Type 201 stainless steel is an alloy that contains half the nickel and more manganese and nitrogen than other popular steels. While it is less expensive than some other alloys (because of its low nickel content), it is not as easy to work or form. Type 201 is an austenitic metal because it is non-magnetic stainless steel that contains high levels of chromium and nickel and low levels of carbon.
| USA | JP | DE | EUR | CN |
|---|---|---|---|---|
| ASTM | JIS | DIN | EN | GB |
| 201 | SUS201 | – | 1.4372 | 12Cr17Mn6Ni5N |
Chemical Composition
The typical chemical composition is shown in the table below.
| Grade | Standard | 201 Chemical Composition | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | Cr | Ni | P | S | Mo | Others | ||
| ≤ % | ≤ % | % | % | % | ≤ % | ≤ % | ≤ % | % | ||
| 201 | ASTM A240 | 0.15 | 1.0 | 5.5-7.5 | 16.0-18.0 | 3.5-5.5 | 0.06 | 0.03 | – | N≤ 0.25 |
| 1.4372 | EN 10088-2 | 0.15 | 1.0 | 5.5-7.5 | 16.0-18.0 | 3.5-5.5 | 0.045 | 0.015 | – | N: 0.05 – 0.25 |
| SUS201 | JIS G 4304 | JIS G 4305 | 0.15 | 1.0 | 5.5-7.5 | 16.0-18.0 | 3.5-5.5 | 0.06 | 0.03 | – | N≤ 0.25 |
Mechanical Properties
The mechanical properties are given in the table below.
| Grade | Standard | 201 Mechanical Properties | ||||
|---|---|---|---|---|---|---|
| Tensile Strength (MPa) ≥ | Yield Strength 0.2% (MPa) ≥ | Elongation >% | Hardness HRB ≤ | Hardness HB ≤ | ||
| 201 | ASTM A240 | 515 | 260 | 40 | 100 | 241 |
| 1.4372 | EN 10088-2 | 750 | 330 | 40 | 100 | 241 |
| SUS201 | JIS G 4304 | JIS G 4305 | 517 | 262 | 40 | 100 | 241 |
Properties &Typical Applications
“201, with acid resistance, alkali resistance, high density, polishing without bubbles, no pinhole and other characteristics, is the production of a variety of watchcase, watchband bottom cover high-quality materials. It is widely used in structural members, different kinds of severely formed parts, and siding and roofing for railway cars and trailers. “
