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Description

St44-3U Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: St44-3U
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel St44-3U
S235J0
S235J2
1.0117
S275JR
St44-2
1.0044
1.0044
St44-2
S275JR
S275J0

Chemical composition(mass fraction)(wt.%) of the St44-3U

 

C
Si
Mn
P
S
Cr Ni
0.18    1.50  0.030  0.030     
Mo Al Cu Nb Ti V Ce
     0.55        
N Co Pb B Other    
 0.012       houdu ≤  150
tuoyang    N
   
             

Mechanical Properties of steel grade St44-3U

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)
823 (≥) 742 (≥) 43 23 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade St44-3U

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
33 - -     0.43 -  
761 529 - 44.3 111   -  
836 - 32 31.2   342 234

Heat Treatment of steel grade St44-3U

Heat treated : 1692°C - 1363°C

Technological Curves of steel grade St44-3U


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