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China 宝钢Q/BQB St15-T 药芯焊丝用冷连轧钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: St15-T / St15-T
Category Grade Standard Region/Area Standard Content
Metals St15-T BZJ 465 China 药芯焊丝用冷连轧钢带

Chemical composition(mass fraction)(wt.%) of the St15-T

Element Min Max Similar
N - 0.0050 -
Al - 0.0500 -
P - 0.0120 -
S - 0.0080 -
Mn 0.1800 0.3200 -
Si - 0.0280 -
C 0.0120 0.0300 -

Mechanical Properties of steel grade St15-T

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)
122 (≥) 484 (≥) 34 32 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade St15-T

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 - -     0.43 -  
811 932 - 42.3 431   -  
556 - 13 43.2   332 143

Heat Treatment of steel grade St15-T

Heat treated : 1482°C - 1366°C

Technological Curves of steel grade St15-T

Cross Reference Table (Equivalent Grade) of St15-T

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