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Description

1.2787 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: 1.2787

Chemical composition(mass fraction)(wt.%) of the 1.2787

 

 

Si 
Mn 
 P
 S
Cr   Ni  Mo  Other
 0.10-0.25  1.00  1.00 0.035  0.035   15.5-18.0  1.00-2.50    

Mechanical Properties of steel grade 1.2787

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)
344 (≥) 768 (≥) 13 12 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade 1.2787

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
43 - -     0.13 -  
829 273 - 21.3 343   -  
125 - 23 44.2   243 123

Heat Treatment of steel grade 1.2787

Heat treated : 1469°C - 1835°C

Technological Curves of steel grade 1.2787

Cross Reference Table (Equivalent Grade) of 1.2787

Grade Standard Country Application
1.2787 DIN Germany Hot working alloy tool steel

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