China · GB
40Cr13
GB/T 4237:2015 — Hot rolled stainless steel plate, sheet and strip
Chemical composition
wt% · log scale- min – max range
- typical value
Mechanical properties
value range by conditionPhysical properties
vs. temperatureChemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.36 | 0.45 | ||
| Cr | 12 | 14 | ||
| Mn | 0.8 | |||
| Ni | 0.6 | |||
| P | 0.04 | |||
| S | 0.03 | |||
| Si | 0.8 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| plates, strip, annealed | ≥225 | ≥590 | ≥15 |
Physical properties
20.0
| Elastic modulus | Mean thermal expansion | Thermal conductivity | Specific heat | Resistivity | Density | Poisson's ratio |
|---|---|---|---|---|---|---|
| 215.00 | 460.00 | 0.59 | 7.75 |
Typical physical values
| Density | Elastic modulus | Poisson's ratio | Remarks |
|---|---|---|---|
| 7.72–8.00 | 190.00–210.00 | 0.27–0.30 | Typical property values for tool steel. These values are not taken from the standard; they are indicative and must not be used for design. |
| 7.61–8.10 | 190.00–215.00 | 0.27–0.30 | Typical material properties for stainless steel. These values are not taken from the standard; they are indicative and must not be used for design. |
Heat treatment
| Type | 3 | 4 |
|---|---|---|
| Heat-treatment process | Tempered | 200℃~300℃ Air-cooled |
| Heat-treatment process | Quenched | 1050℃~1100℃ Oil-cooled |
| Heat-treatment process | Annealed treated | About 750℃ rapidly cooled or 800℃~900℃ slowly cooled |
Similar grades
| Grade | Region | System |
|---|---|---|
| 4031-420-00-I | International standard | ISO |
| S42040 | China | GB |
| X39Cr13 | International standard | ISO |
| 40H13 |  Russia | GOST |
| 1.4031 |  European Union | EN |
| X 39 Cr 13 | European Union | EN |
| X 38 Cr 13 |  Germany | DIN |
| X 39 Cr 13 | Germany | DIN |
| 1.4031 | Germany | DIN |
| 4Cr13 | China | GB |