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Description

STK51 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: STK51
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel STK51
STC60A
STC590B
STC60B
STK290
STK30
STK400
STK41
STK490
STK50
STK500

Chemical composition(mass fraction)(wt.%) of the STK51

 

 


C
Si
Mn
P
S
Cr Ni
0.24 0.35 0.3-1.3 0.04 0.04    
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
             
             

Mechanical Properties of steel grade STK51

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)
416 (≥) 822 (≥) 44 14 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade STK51

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 - -     0.11 -  
487 964 - 21.3 132   -  
926 - 11 41.2   414 214

Heat Treatment of steel grade STK51

Heat treated : 1992°C - 1935°C

Technological Curves of steel grade STK51


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