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Korea KS STBH42 Carbon steel tubes for boiler and heat exchanger and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STBH42 / STBH 42
Category Grade Standard Region/Area Standard Content
Metals STBH 42 KS D 3563 Korea Carbon steel tubes for boiler and heat exchanger

Chemical composition(mass fraction)(wt.%) of the STBH 42

Element Min Max Similar
Si - 0.3500 -
S - 0.0350 -
P - 0.0350 -
Mn 0.3000 0.6000 -
C - 0.3200 -

Mechanical Properties of steel grade STBH 42

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)
515 (≥) 824 (≥) 32 34 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade STBH 42

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
11 - -     0.33 -  
794 493 - 34.3 443   -  
268 - 23 23.2   141 232

Heat Treatment of steel grade STBH 42

Heat treated : 1616°C - 1821°C

Technological Curves of steel grade STBH 42

Cross Reference Table (Equivalent Grade) of STBH 42

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