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Description

SUM25 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: SUM25
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel SUM25
SNC631H
SNC815H
SNCM220H
SNCM420H
SUM21
SUM22
SUM22L
SUM23
SUM23L
SUM24L

Chemical composition(mass fraction)(wt.%) of the SUM25

 

 

C
Si
Mn
P
S
Cr Ni
0.15 0.1-0.35 0.9-1.4 0.07-0.12 0.3-0.4    
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
             
             

Mechanical Properties of steel grade SUM25

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)
549 (≥) 858 (≥) 32 22 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade SUM25

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
41 - -     0.32 -  
253 671 - 11.3 311   -  
458 - 12 21.2   334 234

Heat Treatment of steel grade SUM25

Heat treated : 1889°C - 1856°C

Technological Curves of steel grade SUM25

Cross Reference Table (Equivalent Grade) of SUM25

Grade Standard Country Application
SUM25 China China Taiwan Structural steel

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