EN 10083-3 Grade 20MnB5 quenched and tempered (+QT)

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Description

Boron-alloyed tempering steel for general machine engineering and vehicle manufacturing. The steel is shearable in the non-treated condition.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
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

PropertyValueComment

Density

7.8 - 7.9 g/cm³

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Typical for Low Carbon Steel

Mechanical

PropertyTemperatureValueConditionRelated StandardsShapeComment

Elastic modulus

200 - 215 GPa

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Typical for Low Carbon Steel

Elongation

10.2 %

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Predicted Value, A200

11.2 %

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Predicted Value, A80

12.5 %

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Predicted Value, Transverse

16.6 %

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Predicted Value, A5

16.8 %

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Predicted Value, A50

19.1 %

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Predicted Value, A80 Transverse

20 °C

14 %

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

Bar, Forging, Sheet, Strip, Flat

20 °C

15 %

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

Bar, Forging, Sheet, Strip, Flat

Hardness, Brinell

252 [-]

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Predicted Value, Transverse

Poisson's ratio

0.29 [-]

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Typical for Low Carbon Steel

Reduction of area

43.0 %

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Predicted Value, Transverse

20 °C

55 %

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

Bar, Forging, Sheet, Strip, Flat

Shear modulus

82 GPa

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Typical for Low Carbon Steel

Shear strength

502.3 MPa

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Predicted Value

Tensile strength

20 °C

750 - 1050 MPa

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

Bar, Forging, Sheet, Strip, Flat

20 °C

750 - 900 MPa

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

Bar, Forging, Sheet, Strip, Flat

20 °C

900 - 1050 MPa

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

Bar, Forging, Sheet, Strip, Flat

20 °C

900 MPa

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

Bar, Forging, Sheet, Strip, Flat

Yield strength

305.9 MPa

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Predicted Value, RP05

320.1 MPa

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Predicted Value, RP1

325.6 MPa

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Predicted Value, RP1 Transverse

457.7 MPa

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Predicted Value, RP02 Transverse

466.6 MPa

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Predicted Value, Transverse

640.2 MPa

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Predicted Value, RP02

709.8 MPa

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Predicted Value, RP002

20 °C

600 MPa

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

Bar, Forging, Sheet, Strip, Flat

20 °C

700 MPa

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

Bar, Forging, Sheet, Strip, Flat

Thermal

PropertyValueComment

Coefficient of thermal expansion

1.32e-05 - 1.38e-05 1/K

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Typical for Low Carbon Steel

Max service temperature

328.7 °C

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Predicted Value, Long

500 °C

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Typical for Carbon Steel

Melting point

1480 - 1526 °C

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Typical for Low Carbon Steel

Specific heat capacity

465 J/(kg·K)

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Typical for Low Carbon Steel

Thermal conductivity

25 - 93 W/(m·K)

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Typical for Low Carbon Steel

Electrical

PropertyValueComment

Electrical conductivity

7 S/m

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Predicted Value

Electrical resistivity

1.43e-07 - 1.74e-07 Ω·m

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Typical for Carbon Steel

Magnetic

PropertyValueComment

Curie temperature

770 °C

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Typical for Low Carbon Steel

Chemical properties

PropertyValueConditionRelated StandardsShape

Boron

0.0008 - 0.005 %

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

Bar, Forging, Sheet, Strip, Flat

0.001 - 0.005 %

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quenched and tempered (+QT)

EN 10083-3, ISO 683-2

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Carbon

0.17 - 0.23 %

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

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Copper

0.4 %

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

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Manganese

1.1 - 1.4 %

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

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Phosphorus

0.025 %

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

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Silicon

0.4 %

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

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Sulfur

0.035 %

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quenched and tempered (+QT)

ISO 683-2, EN 10083-3

Bar, Forging, Sheet, Strip, Flat