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Description

1.6781 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: 1.6781

Chemical composition(mass fraction)(wt.%) of the 1.6781

C
Si
Mn
P
S
Cr Ni
0.15-0.19   0.50 0.55-0.80  0.015  0.015  1.30-1.80  3.00-3.50 
Mo Al Cu Nb Ti V Ce
0.45-0.60             
N Co Pb B Other    
             
             

Mechanical Properties of steel grade 1.6781

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)
931 (≥) 826 (≥) 32 22 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade 1.6781

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
13 - -     0.12 -  
214 249 - 11.3 323   -  
998 - 13 31.2   432 422

Heat Treatment of steel grade 1.6781

Heat treated : 1483°C - 1767°C

Technological Curves of steel grade 1.6781

Cross Reference Table (Equivalent Grade) of 1.6781

Grade Standard Country Application
1.6781 DIN Germany

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