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China 宝钢Q/BQB BTC245R 搪瓷用高强度热连轧钢板和钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: BTC245R / BTC245R
Category Grade Standard Region/Area Standard Content
Metals BTC245R BZJ 308 China 搪瓷用高强度热连轧钢板和钢带

Chemical composition(mass fraction)(wt.%) of the BTC245R

Element Min Max Similar
Alt 0.0100 - -
S - 0.0350 -
P - 0.0350 -
Mn - 0.7000 -
Si - 0.0500 -
C - 0.1200 -

Mechanical Properties of steel grade BTC245R

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)
387 (≥) 172 (≥) 43 21 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade BTC245R

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
22 - -     0.41 -  
741 748 - 13.3 223   -  
421 - 22 31.2   431 231

Heat Treatment of steel grade BTC245R

Heat treated : 1791°C - 1295°C

Technological Curves of steel grade BTC245R

Cross Reference Table (Equivalent Grade) of BTC245R

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