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DIN 1.2311,40CrMnMoS8-6,1.2312,P20,40CMD8 Details

1.2311,40CrMnMoS8-6,1.2312,P20,40CMD8 Application:Tool Steels; Technical Conditions of Delivery

Category Type Grade Designations
Grades Tool Die Steels 1.2311,40CrMnMoS8-6,1.2312,P20,40CMD8 Germany - DIN , DIN 17350 (1980) - Tool Steels; Technical Conditions of Delivery

Chemical composition(wt.%) of 1.2311,40CrMnMoS8-6,1.2312,P20,40CMD8 grade: DIN 17350 (1980)

Elements Min.(≥) Max.(≤)
C 0.35 0.45
Si 0.30 0.50
Mn 1.40 1.60
P - 0.030
S 0.05 0.10
Cr 1.80 2.00
Mo 0.15 0.25
V - -

Mechanical properties of grade 1.2311,40CrMnMoS8-6,1.2312,P20,40CMD8 DIN 17350 (1980)

Yield Strength,Rp 0.2(MPa)

Condition Min Max Similar Note

Tensile Strength,Rm(MPa)

Condition Min Max Similar Note

Impact,Kv/Ku(J)

Condition Min Max Similar Note

Elongation,A(%)

Condition Min Max Similar Note

Reduction of area,(%)

Condition Min Max Similar Note

Hardness

Condition Type Min Max Similar Note
A HB 235
QT HRC 51

Physical properties of grade 1.2311,40CrMnMoS8-6,1.2312,P20,40CMD8 DIN 17350 (1980)

Density Note
7.84 g/cm3
Linear expansion coefficient Note
12.4 *10-6m/(m*K)
Thermal conductivity Note
34 W/(m*K)
Note

Related properties

- Temperature range: 20-200 °C 13 *10-6m/(m*K)
QT - Temperature range: 20-300 °C 13,4 *10-6m/(m*K)
QT - Testing temperature 13 *10-6m/(m*K)
QT - Temperature range: 20-300 °C 13,4 *10-6m/(m*K)

Application

1.2311, 40CrMnMoS8-6, 1.2312, 40CrMnMoS8-6, P20, 40CMD8 plastic mould tool steels, suitable to operate in high temperature, used mainly for plastic moulds, hydroforming tools and frames for plastic pressure dies. They are highly hardenable, resistant to tempering and strong in high temperature.

Similar Steel Grades    

1.2311, 1.2312, 40CrMnMo7, 40CrMnMoS8-6, P20+S, UNS T51620, P20, 40Ch2GM, 35CrMo8, 40CMD8, F-5302, A681, 40Х2ГМ



1.2311,40CrMnMoS8-6,1.2312,P20,40CMD8 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
1.2311,40CrMnMoS8-6,1.2312,P20,40CMD8 DIN Germany
Tool Steels; Technical Conditions of Delivery

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