202 stainless steel
Type 202 stainless steel is a type of Cr-Ni-Mn stainless with similar properties to A240/SUS 302 stainless steel.
The toughness of grade 202 at low temperatures is excellent. It is one of the most widely used precipitation hardening grades, and possesses good corrosion resistance, toughness, high harness, and strength.
| USA | JP | DE | EUR | CN |
|---|---|---|---|---|
| ASTM | JIS | DIN | EN | GB |
| 202 | SUS202 | – | 1.4373 | 12Cr18Mn6Ni5N |
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 | ||
| ≤ % | ≤ % | % | % | % | ≤ % | ≤ % | ≤ % | % | ||
| 202 | ASTM A240 | 0.15 | 1.0 | 7.5 – 10 | 17.0 – 19.0 | 4.0 – 6.0 | 0.06 | 0.03 | – | N≤ 0.25 |
| 1.4372 | EN 10088-2 | 0.15 | 1.0 | 7.5 – 10 | 17.0 – 19.0 | 4.0 – 6.0 | 0.045 | 0.015 | – | N: 0.05 – 0.25 |
| SUS202 | JIS G 4304 | JIS G 4305 | 0.15 | 1.0 | 7.5 – 10 | 17.0 – 19.0 | 4.0 – 6.0 | 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 ≤ | ||
| 202 | ASTM A240 | 515 | 275 | 40 | 100 | 241 |
| 1.4372 | EN 10088-2 | 680 | 320 | 45 | 100 | 241 |
| SUS201 | JIS G 4304 | JIS G 4305 | 620 | 260 | 40 | 100 | 241 |
Properties &Typical Applications
202, Mn and N are used to replace part of nickel, so as to obtain good mechanical properties and corrosion resistance, it is a new type of nickel-saving stainless steel, its room temperature strength is higher than 304, it has better oxidation resistance and moderate temperature strength below 800 degrees. It’s Mainly used for decorative pipe, industrial pipe, some shallow stretching products.
