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X4CrNiMo16-5-1 Grade: Quenched & Tempered (QT900) – High‑Performance Martensitic Stainless Steel

Material X4CrNiMo16-5-1 is comparable to X 4 CrNiMo 16 5 acc. to SEW400 : 1991-02. This material is a martensitic stainless steel for machine engineering, for pumps, fittings, compressors as well as for shipbuilding. It shows good corrosion resistance and cryogenic toughness up to -200 °C. The steel has high corrosion resistance especially to water, weak acids and bases, oxidizing acids (nitric acid) and low chloride containing media.

Quantity: 300 EURAdditional services: Project based stainless steel packages for long, flat and tubular products. Implementing specs, approving mills and productions outfits, planning production finished and pre material routes. Making sure delivery is on time. Forgings, centrifugal casting, HIP products. Sourcing of material

UGITECH

MANUFACTURER

Information and services

Additional services: https://eservices.ugitech.com/

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.56 - 7.7 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

200 - 218 GPa

100.0 °C

195 - 213 GPa

200.0 °C

185 - 206 GPa

300.0 °C

175 - 198 GPa

400.0 °C

170 - 190 GPa

500.0 °C

180 GPa

600.0 °C

167 GPa

700.0 °C

150 GPa

Elongation

20.0 °C

10 - 16 %

Elongation, transverse

20.0 °C

14 %

Poisson's ratio

23.0 °C

0.3 [-]

Typical for Martensitic Stainless Steel

Shear modulus

23.0 °C

77 GPa

Typical for Martensitic Stainless Steel

Tensile strength

20.0 °C

900 - 1150 MPa

Tensile strength, transverse

20.0 °C

760 - 1100 MPa

Yield strength Rp0.2

20.0 °C

700 - 750 MPa

100.0 °C

660 MPa

150.0 °C

640 MPa

200.0 °C

620 MPa

250.0 °C

600 MPa

300.0 °C

580 MPa

Yield strength Rp0.2, transverse

20.0 °C

550 - 700 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

20.0 °C

9.9E-6 1/K

100.0 °C

1.03E-5 1/K

200.0 °C

1.08E-5 1/K

300.0 °C

1.12E-5 1/K

400.0 °C

1.16E-5 1/K

500.0 °C

1.19E-5 1/K

600.0 °C

1.21E-5 1/K

700.0 °C

1.24E-5 1/K

800.0 °C

1.29E-5 1/K

Melting point

1370 - 1530 °C

Typical for Martensitic Stainless Steel

Specific heat capacity

20.0 °C

430 - 450 J/(kg·K)

100.0 °C

482 J/(kg·K)

200.0 °C

506 J/(kg·K)

300.0 °C

525 J/(kg·K)

400.0 °C

547 J/(kg·K)

500.0 °C

576 J/(kg·K)

600.0 °C

616 J/(kg·K)

Thermal conductivity

20.0 °C

15 - 16 W/(m·K)

100.0 °C

17.2 W/(m·K)

200.0 °C

18.6 W/(m·K)

300.0 °C

20 W/(m·K)

400.0 °C

21.2 W/(m·K)

500.0 °C

22.3 W/(m·K)

600.0 °C

23.3 W/(m·K)

700.0 °C

24.1 W/(m·K)

800.0 °C

25.5 W/(m·K)

900.0 °C

26.9 W/(m·K)

1000.0 °C

28.3 W/(m·K)

Thermal diffusivity

20.0 °C

4.7 mm²/s

100.0 °C

4.5 mm²/s

200.0 °C

4.5 mm²/s

300.0 °C

4.6 mm²/s

400.0 °C

4.4 mm²/s

500.0 °C

4.1 mm²/s

600.0 °C

3.6 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

8E-7 - 9.06E-7 Ω·m

100.0 °C

9.42E-7 Ω·m

200.0 °C

9.87E-7 Ω·m

300.0 °C

1.03E-6 Ω·m

400.0 °C

1.08E-6 Ω·m

500.0 °C

1.12E-6 Ω·m

600.0 °C

1.18E-6 Ω·m

700.0 °C

1.22E-6 Ω·m

800.0 °C

1.24E-6 Ω·m

900.0 °C

1.26E-6 Ω·m

1000.0 °C

1.27E-6 Ω·m

Chemical properties

PropertyValue

Carbon

0.06 %

Chromium

15 - 17 %

Manganese

1.5 %

Molybdenum

0.8 - 1.5 %

Nickel

4 - 6 %

Nitrogen

0.02 %

Phosphorus

0.04 %

Silicon

0.7 %

Sulfur

0.015 %


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