Russia · GOST
15
GOST 10705:1980 — GOST 10705
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 | 0.12 | 0.19 | ||
| Cr | 0.25 | |||
| Cu | 0.3 | |||
| Mn | 0.35 | 0.65 | ||
| Ni | 0.3 | |||
| P | 0.035 | |||
| S | 0.04 | |||
| Si | 0.17 | 0.37 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| steel tubes, Heat treated | ≥225 | ≥372 | ≥22 | |||
| steel tubes, not heat treated, t= 10 - 19 mm | ≥206 | ≥441 | ||||
| steel tubes, not heat treated, t= 19 -, 60 mm | ≥206 | ≥372 | ||||
| steel tubes, not heat treated, t= 60 - 152 mm | ≥206 | ≥353 |
Physical properties
20.0
| Elastic modulus | Mean thermal expansion | Thermal conductivity | Specific heat | Resistivity | Density | Poisson's ratio |
|---|---|---|---|---|---|---|
| 198.00 | 7.85 |
Typical physical values
| Density | Elastic modulus | Poisson's ratio | Remarks |
|---|---|---|---|
| 7.86 | 203.00 | 0.27–0.30 | 低碳,低合金钢的典型性能数值。此值不来源于标准,它是指示性指标,不能被用于设计用途。 |