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Description

1.2731 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: 1.2731

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

 

 

Si 
Mn 
 P
 S
Cr   Ni  Mo  Other
 0.45-0.55  1.20-1.50  0.60-0.80  0.035 0.035   12.0-14.0  12.5-13.5    V 0.30-1.00
W 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)
385 (≥) 257 (≥) 14 33 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

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
34 - -     0.43 -  
758 159 - 44.3 212   -  
183 - 33 23.2   333 244

Heat Treatment of steel grade 1.2731

Heat treated : 1938°C - 1788°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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