EN 10088-1 Grade X39CrMo17-1 quenched and tempered (+QT750)

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Description

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.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.56 - 7.7 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

215 - 218 GPa

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100.0 °C

212 - 213 GPa

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200.0 °C

205 - 206 GPa

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300.0 °C

198 - 200 GPa

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400.0 °C

190 GPa

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500.0 °C

180 GPa

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600.0 °C

167 GPa

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700.0 °C

150 GPa

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Elongation

20.0 °C

8 - 12 %

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Poisson's ratio

23.0 °C

0.3 [-]

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Typical for Martensitic Stainless Steel

Shear modulus

23.0 °C

77 GPa

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Typical for Martensitic Stainless Steel

Tensile strength

20.0 °C

750 - 1050 MPa

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Yield strength Rp0.2

20.0 °C

550 - 650 MPa

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100.0 °C

540 MPa

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150.0 °C

535 MPa

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200.0 °C

530 MPa

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250.0 °C

520 MPa

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300.0 °C

510 MPa

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350.0 °C

490 MPa

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400.0 °C

470 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

20.0 °C

9.9E-6 1/K

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100.0 °C

1.03E-5 - 1.04E-5 1/K

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200.0 °C

1.08E-5 1/K

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300.0 °C

1.12E-5 1/K

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400.0 °C

1.16E-5 1/K

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500.0 °C

1.19E-5 1/K

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600.0 °C

1.21E-5 1/K

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700.0 °C

1.24E-5 1/K

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800.0 °C

1.29E-5 1/K

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Max service temperature, long

-40 - 550 °C

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Melting point

1370 - 1530 °C

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Typical for Martensitic Stainless Steel

Specific heat capacity

20.0 °C

430 - 450 J/(kg·K)

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100.0 °C

482 J/(kg·K)

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200.0 °C

506 J/(kg·K)

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300.0 °C

525 J/(kg·K)

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400.0 °C

547 J/(kg·K)

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500.0 °C

576 J/(kg·K)

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600.0 °C

616 J/(kg·K)

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Thermal conductivity

20.0 °C

15 - 16 W/(m·K)

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100.0 °C

17.2 W/(m·K)

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200.0 °C

18.6 W/(m·K)

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300.0 °C

20 W/(m·K)

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400.0 °C

21.2 W/(m·K)

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500.0 °C

22.3 W/(m·K)

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600.0 °C

23.3 W/(m·K)

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700.0 °C

24.1 W/(m·K)

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800.0 °C

25.5 W/(m·K)

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900.0 °C

26.9 W/(m·K)

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1000.0 °C

28.3 W/(m·K)

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Thermal diffusivity

20.0 °C

4.7 mm²/s

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100.0 °C

4.5 mm²/s

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200.0 °C

4.5 mm²/s

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300.0 °C

4.6 mm²/s

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400.0 °C

4.4 mm²/s

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500.0 °C

4.1 mm²/s

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600.0 °C

3.6 mm²/s

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

8E-7 - 9.06E-7 Ω·m

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100.0 °C

9.42E-7 Ω·m

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200.0 °C

9.87E-7 Ω·m

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300.0 °C

1.03E-6 Ω·m

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400.0 °C

1.08E-6 Ω·m

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500.0 °C

1.12E-6 Ω·m

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600.0 °C

1.18E-6 Ω·m

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700.0 °C

1.22E-6 Ω·m

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800.0 °C

1.24E-6 Ω·m

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900.0 °C

1.26E-6 Ω·m

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1000.0 °C

1.27E-6 Ω·m

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Chemical properties

PropertyValue

Carbon

0.33 - 0.45 %

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Chromium

15.5 - 17.5 %

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Manganese

1.5 %

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Molybdenum

0.8 - 1.3 %

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Nickel

1 %

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Phosphorus

0.04 %

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Silicon

1 %

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Sulfur

0.015 %

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