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40CrMnMoS8-6 Application:Cold working alloy tool steel
Category Type Steel grade Standard Country
Grades Special Alloy 40CrMnMoS8-6 DIN Germany

Chemical composition % of the ladle analysis of grade 40CrMnMoS8-6

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Mo(%)
0.35-0.45 0.30-0.50 1.40-1.60 Max 0.030 0.05-0.10 1.80-2.00 0.15-0.25
40CrMnMoS8-6
Mechanical properties of grade 40CrMnMoS8-6
Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
811 (≥) 615 (≥) 34 13 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 214
Physical properties of grade 40CrMnMoS8-6
Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
467 (≥) 343 (≥) 24 22 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 224
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
776 993 642
40CrMnMoS8-6 Range of products
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
40CrMnMoS8-6 DIN Germany
Tool Steels; Technical Conditions of Delivery
1.2311,40CrMnMoS8-6,1.2312,P20,40CMD8 DIN Germany
Tool Steels; Technical Conditions of Delivery

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