ISO 4957 Grade X155CrMoV12-1 soft annealed (+A)

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Description

Properties: - good dimensional stability - high wear resistance - best toughness of the high chromium and high carbon alloyed group - able for nitriding Application: - for high power cutting and stamping tools for sheet thickness up to 5 mm, roll and blade knifes up to 4mm sheet thickness - cold pilger mandrils, thread roll tools - dies for cold forming, flanges, bead and truing rolls - form and calibration rolls for the continuous profile and tubing production from strip steel - cut-off tools in the paper and plastic industry - tools for machining of wood - dies for plastics

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

7.68 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

215 GPa

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100.0 °C

211 GPa

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200.0 °C

204 GPa

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300.0 °C

198 GPa

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400.0 °C

191 GPa

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500.0 °C

182 GPa

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Poisson's ratio

23.0 °C

0.3 [-]

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Typical for Tool And Machining Steel

Shear modulus

23.0 °C

79 GPa

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Typical for Tool And Machining Steel

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

8.6E-6 1/K

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20.0 °C

1.01E-5 1/K

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100.0 °C

1.07E-5 1/K

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200.0 °C

1.13E-5 1/K

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300.0 °C

1.18E-5 1/K

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400.0 °C

1.22E-5 1/K

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500.0 °C

1.25E-5 1/K

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Melting point

1370 - 1425 °C

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Typical for Tool And Machining Steel

Specific heat capacity

20.0 °C

439 J/(kg·K)

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Thermal conductivity

20.0 °C

31.9 W/(m·K)

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100.0 °C

31.5 W/(m·K)

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200.0 °C

30.9 W/(m·K)

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300.0 °C

29.7 W/(m·K)

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400.0 °C

28.6 W/(m·K)

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500.0 °C

27.6 W/(m·K)

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Thermal diffusivity

20.0 °C

9.5 mm²/s

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

4.53E-7 Ω·m

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100.0 °C

5.15E-7 Ω·m

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200.0 °C

5.96E-7 Ω·m

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300.0 °C

6.95E-7 Ω·m

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400.0 °C

7.98E-7 Ω·m

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500.0 °C

9.08E-7 Ω·m

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Chemical properties

PropertyValue

Carbon

1.5 - 1.6 %

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Chromium

11 - 12 %

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Manganese

0.15 - 0.45 %

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Molybdenum

0.6 - 0.8 %

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Phosphorus

0.03 %

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Silicon

0.1 - 0.4 %

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Sulfur

0.03 %

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Vanadium

0.9 - 1.1 %

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