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China 首钢Q/SG S355K2 欧标非合金结构钢钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: S355K2 / S355K2
Category Grade Standard Region/Area Standard Content
Metals S355K2 Q/SGZGS 318 China 欧标非合金结构钢钢板

Chemical composition(mass fraction)(wt.%) of the S355K2

Element Min Max Similar
C - 0.2300 -
C - 0.2300 -
Si - 0.6000 -
Mn - 1.7000 -
P - 0.0350 -
S - 0.0350 -
Cu - 0.6000 -
C - 0.2000 -
C - 0.2000 -
Si - 0.5500 -
Mn - 1.6000 -
P - 0.0250 -
S - 0.0250 -
Cu - 0.5500 -
C - 0.2300 -
C - 0.2300 -
C - 0.2400 -
Si - 0.6000 -
Mn - 1.7000 -
P - 0.0350 -
S - 0.0350 -
Cu - 0.6000 -
C - 0.2000 -
C - 0.2000 -
C - 0.2200 -
Si - 0.5500 -
Mn - 1.6000 -
P - 0.0250 -
S - 0.0250 -
Cu - 0.5500 -

Mechanical Properties of steel grade S355K2

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)
759 (≥) 193 (≥) 31 42 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 412

Physical Properties of steel grade S355K2

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
21 - -     0.24 -  
212 678 - 43.3 111   -  
515 - 13 11.2   321 424

Heat Treatment of steel grade S355K2

Heat treated : 1753°C - 1516°C

Technological Curves of steel grade S355K2

Cross Reference Table (Equivalent Grade) of S355K2

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