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Description

K90901 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: K90901
Category Type Steel Grade Standard Country Application
Steel GradesHigh Alloy K90901
K12047
T21
K31545
T22
K21590
T23
K40712
T24
K30736
T91

Chemical composition(mass fraction)(wt.%) of the K90901

 


C
Si
Mn
P
S
Cr Ni
0.07-0.14 0.2-0.5 0.3-0.6 0.02 0.01 8-9.5 ≤0.4
Mo Al Cu Nb Ti V Ce
0.85-1.05 ≤0.04     0.06-0.1 0.18-0.25  
N Co Pb B Other    
0.03-0.07            
             

Mechanical Properties of steel grade K90901

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)
782 (≥) 636 (≥) 44 11 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade K90901

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 - -     0.41 -  
797 152 - 23.3 123   -  
185 - 11 24.2   224 321

Heat Treatment of steel grade K90901

Heat treated : 1693°C - 1264°C

Technological Curves of steel grade K90901


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