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Description

1.2887 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: 1.2887

Chemical composition(mass fraction)(wt.%) of the 1.2887

C
Si
Mn
P
S
Cr Ni
0.32-0.36  0.15-0.30  0.30-0.50  0.025  0.025   2.70-3.20  
Mo Al Cu Nb Ti V Ce
2.70-3.20          0.60-0.80   
N Co Pb B Other    
  4.50-5.00           
             

Mechanical Properties of steel grade 1.2887

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)
747 (≥) 649 (≥) 12 42 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade 1.2887

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
32 - -     0.23 -  
644 147 - 44.3 444   -  
252 - 23 31.2   142 114

Heat Treatment of steel grade 1.2887

Heat treated : 1852°C - 1825°C

Technological Curves of steel grade 1.2887


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