EN 10088-1 Grade X39CrMo17-1 quenched and tempered (+QT750)
EN 10088-1 Grade X39CrMo17-1 quenched and tempered (+QT750) introduction
Material X39CrMo17-1 is comparable to X 35 CrMo 17 acc. to SEW 400 : 1991-02. It is a heat treatable Cr-steel with increased corrosion resistance, largely resistant to many organic and inorganic acids, relatively resistant to seawater. Excellent operating characateristics and wear resistance. Application for pump shafts, spindles, axles, fittings, beater bars. Improved resistance to crevice corrosion, increased thermal resistance up to 600 °C. The steel is mirror finishable. Different heat treatment grades have to be chosen for parts sliding on each other.
Application temperature -40 to 550 °C (for the comparable DIN-material)
No forming is designated.
Equivalent material: ISO X39CrMo17-1, UNI X35CrMo17, STAS 35MoCr165, DIN X39CrMo17-1, ISO 4122-434-09-I, ISO MM18R, DIN X35CrMo17, DIN 1.4122, DIN X 35 CrMo 17, DIN G-X35CrMo17, AFNOR Z38CD16-01, EN 1.4122
EN 10088-1 Grade X39CrMo17-1 quenched and tempered (+QT750) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.56 - 7.7 g/cm³ |
EN 10088-1 Grade X39CrMo17-1 quenched and tempered (+QT750) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
20.0 °C |
Coefficient of thermal expansion of 9.9E-6 1/K |
- |
| - |
100.0 °C |
Coefficient of thermal expansion of 1.03E-5 - 1.04E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.08E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.12E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.16E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.19E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.21E-5 1/K |
- |
| - |
700.0 °C |
Coefficient of thermal expansion of 1.24E-5 1/K |
- |
| - |
800.0 °C |
Coefficient of thermal expansion of 1.29E-5 1/K |
- |
| Max service temperature, long |
- |
Max service temperature, long of -40 - 550 °C |
- |
| Melting point |
- |
Melting point of 1370 - 1530 °C |
Typical for Martensitic Stainless Steel |
| Specific heat capacity |
20.0 °C |
Specific heat capacity of 430 - 450 J/(kg·K) |
- |
| - |
100.0 °C |
Specific heat capacity of 482 J/(kg·K) |
- |
| - |
200.0 °C |
Specific heat capacity of 506 J/(kg·K) |
- |
| - |
300.0 °C |
Specific heat capacity of 525 J/(kg·K) |
- |
| - |
400.0 °C |
Specific heat capacity of 547 J/(kg·K) |
- |
| - |
500.0 °C |
Specific heat capacity of 576 J/(kg·K) |
- |
| - |
600.0 °C |
Specific heat capacity of 616 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 15 - 16 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 17.2 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 18.6 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 20 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 21.2 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 22.3 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 23.3 W/(m·K) |
- |
| - |
700.0 °C |
Thermal conductivity of 24.1 W/(m·K) |
- |
| - |
800.0 °C |
Thermal conductivity of 25.5 W/(m·K) |
- |
| - |
900.0 °C |
Thermal conductivity of 26.9 W/(m·K) |
- |
| - |
1000.0 °C |
Thermal conductivity of 28.3 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 4.7 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 4.5 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 4.5 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 4.6 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 4.4 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 4.1 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 3.6 mm²/s |
- |
EN 10088-1 Grade X39CrMo17-1 quenched and tempered (+QT750) chemical
| Property |
Value |
| Carbon |
Carbon of 0.33 - 0.45 % |
| Chromium |
Chromium of 15.5 - 17.5 % |
| Manganese |
Manganese of 1.5 % |
| Molybdenum |
Molybdenum of 0.8 - 1.3 % |
| Nickel |
Nickel of 1 % |
| Phosphorus |
Phosphorus of 0.04 % |
| Silicon |
Silicon of 1 % |
| Sulfur |
Sulfur of 0.015 % |
EN 10088-1 Grade X39CrMo17-1 quenched and tempered (+QT750) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 8E-7 - 9.06E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 9.42E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 9.87E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 1.03E-6 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 1.08E-6 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 1.12E-6 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 1.18E-6 Ω·m |
| - |
700.0 °C |
Electrical resistivity of 1.22E-6 Ω·m |
| - |
800.0 °C |
Electrical resistivity of 1.24E-6 Ω·m |
| - |
900.0 °C |
Electrical resistivity of 1.26E-6 Ω·m |
| - |
1000.0 °C |
Electrical resistivity of 1.27E-6 Ω·m |
EN 10088-1 Grade X39CrMo17-1 quenched and tempered (+QT750) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
20.0 °C |
Elastic modulus of 215 - 218 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 212 - 213 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 205 - 206 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 198 - 200 GPa |
- |
| - |
400.0 °C |
Elastic modulus of 190 GPa |
- |
| - |
500.0 °C |
Elastic modulus of 180 GPa |
- |
| - |
600.0 °C |
Elastic modulus of 167 GPa |
- |
| - |
700.0 °C |
Elastic modulus of 150 GPa |
- |
| Elongation |
20.0 °C |
Elongation of 8 - 12 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.3 [-] |
Typical for Martensitic Stainless Steel |
| Shear modulus |
23.0 °C |
Shear modulus of 77 GPa |
Typical for Martensitic Stainless Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 750 - 1050 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 550 - 650 MPa |
- |
| - |
100.0 °C |
Yield strength Rp0.2 of 540 MPa |
- |
| - |
150.0 °C |
Yield strength Rp0.2 of 535 MPa |
- |
| - |
200.0 °C |
Yield strength Rp0.2 of 530 MPa |
- |
| - |
250.0 °C |
Yield strength Rp0.2 of 520 MPa |
- |
| - |
300.0 °C |
Yield strength Rp0.2 of 510 MPa |
- |
| - |
350.0 °C |
Yield strength Rp0.2 of 490 MPa |
- |
| - |
400.0 °C |
Yield strength Rp0.2 of 470 MPa |
- |
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