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Korea KS STLT39 低温热交换器管道钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STLT39 / STLT 39
Category Grade Standard Region/Area Standard Content
Metals STLT 39 KS D 3571 Korea 低温热交换器管道钢

Chemical composition(mass fraction)(wt.%) of the STLT 39

Element Min Max Similar
Si - 0.3500 -
S - 0.0350 -
P - 0.0350 -
Mn - 1.3500 -
C - 0.2500 -

Mechanical Properties of steel grade STLT 39

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)
382 (≥) 792 (≥) 23 41 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

Physical Properties of steel grade STLT 39

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
13 - -     0.11 -  
415 274 - 22.3 434   -  
696 - 12 11.2   431 232

Heat Treatment of steel grade STLT 39

Heat treated : 1738°C - 1288°C

Technological Curves of steel grade STLT 39

Cross Reference Table (Equivalent Grade) of STLT 39

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