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Description

Germany DIN 1.2731 Hot working alloy tool steel and 1.2731 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: 1.2731
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy 1.2731 DIN Germany Hot working alloy tool steel
1.2622
X30WCrCoV9-3
1.2662
X45CoCrWV5-5-5
1.2678
56NiCrMoV7
1.2714
26NiCrMoV5
1.2726
X50NiCrWV13-13

Chemical composition(mass fraction)(wt.%) of the 1.2731

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) V(%) W(%)
0.45-0.55 1.20-1.50 0.60-0.80 Max 0.035 Max 0.035 12.0-14.0 12.5-13.5 0.30-1.00 1.50-2.80

Mechanical Properties of steel grade 1.2731

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
397 (≥) 487 (≥) 23 32 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade 1.2731

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
14 - -     0.12 -  
943 379 - 44.3 344   -  
783 - 23 23.2   131 223

Heat Treatment of steel grade 1.2731

Heat treated : 1692°C - 1774°C

Technological Curves of steel grade 1.2731

Cross Reference Table (Equivalent Grade) of 1.2731

Grade Standard Country Application
1.2731 DIN Germany Hot working alloy tool steel

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