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Description

1.4440 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: 1.4440

Chemical composition(mass fraction)(wt.%) of the 1.4440

 

C
Si
Mn
P
S
Cr Ni
0.035          18.5  17.5 
Mo Al Cu Nb Ti V Ce
4.5             
N Co Pb B Other AWS(A5.9)   
          ≈ER317(L)   
             

Mechanical Properties of steel grade 1.4440

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)
937 (≥) 439 (≥) 43 43 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical Properties of steel grade 1.4440

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
12 - -     0.22 -  
718 758 - 14.3 121   -  
542 - 31 34.2   323 222

Heat Treatment of steel grade 1.4440

Heat treated : 1231°C - 1125°C

Technological Curves of steel grade 1.4440


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