Formadur 2312 Bar

Alternative and trade names
DIN EN ISO 40CrMnMoS8-6, AISI P20+S
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Description

1.2312 (40CrMnMoS8-6) is a quenched and tempered plastic mould steel with a hardness in as-delivered condition of 280 to 325 HB. Improved machinability and polishability.

Equivalent Materials

This material data has been provided by Deutsche Edelstahlwerke Specialty Steel (DEW).

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.

Ashby charts

Properties

Dimension

PropertyValue

Diameter

81.0 mm

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403.0 mm

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Mechanical

PropertyValueComment

Hardness, Brinell

280.0 - 325.0 [-]

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as-delivered condition

Hardness, Rockwell C

28.0 - 51.0 [-]

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Tensile strength

950.0 - 1095.0 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100 °C

0.0000123 1/K

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for 20°C to the mentioned temperature, Quenched and Tempered

200 °C

0.000013 1/K

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for 20°C to the mentioned temperature, Quenched and Tempered

300 °C

0.0000137 1/K

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for 20°C to the mentioned temperature, Quenched and Tempered

Thermal conductivity

100 °C

39.8 W/(m·K)

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150 °C

40.4 W/(m·K)

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200 °C

40.4 W/(m·K)

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250 °C

39.9 W/(m·K)

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300 °C

39 W/(m·K)

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Chemical properties

PropertyValue

Carbon

0.4

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Chromium

1.9

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Manganese

1.5

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Molybdenum

0.2

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Silicon

0.30000000000000004

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Sulfur

0.05

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Technological properties

Property
Application areas

Mould frames for plastic and die casting moulds, press brake dies, plastic moulds without special requirements on surface quality

Heat Treatment

Soft annealing: 710-740°C (Cooling in furnace) - Stress relief annealing cooling in furnace (annealed): approx 600°C - Stress relief annealing cooling in furnace (quenched and tempered): approx 30-50°C under tempering temperature - Hardening: 840-870°C and quenching in oil or salt bath T=180-220°C