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Description

0.7688 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: 0.7688

Chemical composition(mass fraction)(wt.%) of the 0.7688

 

C
Si
Mn
P
S
Cr Ni
2.0 4.0-6.0 0.5-1.5     1.5-2.5  34.0 -36.0
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
             
             

Mechanical Properties of steel grade 0.7688

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)
836 (≥) 199 (≥) 23 44 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

Physical Properties of steel grade 0.7688

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 - -     0.14 -  
517 816 - 11.3 333   -  
943 - 34 14.2   431 131

Heat Treatment of steel grade 0.7688

Heat treated : 1836°C - 1715°C

Technological Curves of steel grade 0.7688


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