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Description

340-550 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: 340-550
Category Type Steel Grade Standard Country Application
Steel GradesMould Steel 340-550
LA-71
LA-75
LA-90
LA-100
200-400
200-400W
230-450
230-450W
270-480
270-480W

Chemical composition(mass fraction)(wt.%) of the 340-550

 


C
Si
Mn
P
S
Cr Ni
      0.035 0.035    
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
        By manufacturer decided to    
             

Mechanical Properties of steel grade 340-550

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)
345 (≥) 582 (≥) 21 34 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 432

Physical Properties of steel grade 340-550

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
23 - -     0.13 -  
115 683 - 21.3 142   -  
755 - 12 24.2   434 344

Heat Treatment of steel grade 340-550

Heat treated : 1267°C - 1391°C

Technological Curves of steel grade 340-550


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