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Description

MT429 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: MT429
Category Type Steel Grade Standard Country Application
Steel GradesHigh Alloy MT429
MT317
MT321
MT347
MT403
MT410
MT414
MT416Se
MT431
MT440A
MT405

Chemical composition(mass fraction)(wt.%) of the MT429

 

C
Si
Mn
P
S
Cr Ni
0.12 1 1 0.04 0.03 14-16 ≤0.5
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
             
             

Mechanical Properties of steel grade MT429

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)
321 (≥) 246 (≥) 13 11 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade MT429

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
24 - -     0.12 -  
961 116 - 21.3 413   -  
263 - 22 11.2   121 442

Heat Treatment of steel grade MT429

Heat treated : 1131°C - 1454°C

Technological Curves of steel grade MT429


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