France · AFNOR NF
X 105 CrMo 17
NF A35-565 — Iron and steel. Steels for bearings. Types.
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.95 | 1.2 | ||
| Cr | 16 | 18 | ||
| Mn | 1 | |||
| Mo | 0.4 | 0.8 | ||
| P | 0.03 | |||
| S | 0.015 | |||
| Si | 1 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| bars, HR, steel bars, wire, hardened | 钢管 58.00 |
Physical properties
20.0
| Elastic modulus | Mean thermal expansion | Thermal conductivity | Specific heat | Resistivity | Density | Poisson's ratio |
|---|---|---|---|---|---|---|
| 215.00 | 15.00 | 430.00 | 0.80 | 7.70 |
Typical physical values
| Density | Elastic modulus | Poisson's ratio | Remarks |
|---|---|---|---|
| 7.80 | 190.00–210.00 | 0.27–0.30 | 高碳高合金钢的典型属性数值。此值不来源于标准，它是指示性指标，不能被用于设计用途。 |
Heat treatment
| Type | 1 |
|---|---|
| Heat-treatment curve | Hardness-Tempering |
| Heat-treatment curve | CCT |
| Heat-treatment curve | TTT |
Similar grades
| Grade | Region | System |
|---|---|---|
| 1.4125 |  Italy | UNI |
| 1.4125 |  Spain | UNE |
| X 105 CrMo 17 | Spain | UNE |
| 1.4125 |  Romania | STAS |
| X 105 CrMo 17 | Romania | STAS |
| 1.4125 |  Sweden | SS |
| X 105 CrMo 17 | Sweden | SS |
| 1.4125 |  Switzerland | SNV |
| X 105 CrMo 17 | Switzerland | SNV |
| 1.4125 |  Finland | SFS |
| X 105 CrMo 17 | Finland | SFS |
| 1.4125 |  Poland | PN |
| X 105 CrMo 17 | Poland | PN |
| 1.4125 |  Austria | ONORM |
| X 105 CrMo 17 | Austria | ONORM |
| 1.4125 |  Norway | NS |
| X 105 CrMo 17 | Norway | NS |
| 1.4125 |  Belgium | NBN |
| X 105 CrMo 17 | Belgium | NBN |
| 1.4125 |  Hungary | MSZ |
| X 105 CrMo 17 | Hungary | MSZ |
| 1.4125 | Czech Republic | CSN |
| X 105 CrMo 17 | Czech Republic | CSN |
| 1.4125 | Bulgaria | BDS |
| X 105 CrMo 17 | Bulgaria | BDS |
| 1.4125 |  United Kingdom | B.S. |
| X 105 CrMo 17 | United Kingdom | B.S. |
| 1.4125 | France | AFNOR NF |
| X 105 CrMo 17 | Italy | UNI |
| X 105 CrMo 17 |  Germany | DIN |
| 1.4125 | Germany | DIN |