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Japan JIS STBL690 低温热交换器管道钢 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STBL690 / STBL 690
Category Grade Standard Region/Area Standard Content
Metals STBL 690 JIS G3464 Japan 低温热交换器管道钢

Chemical composition(mass fraction)(wt.%) of the STBL 690

Element Min Max Similar
Ni 8.5000 9.5000 -
S - 0.0300 -
P - 0.0300 -
Mn - 0.9000 -
Si 0.1000 0.3500 -
C - 0.1300 -

Mechanical Properties of steel grade STBL 690

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)
225 (≥) 732 (≥) 32 43 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 113

Physical Properties of steel grade STBL 690

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
12 - -     0.12 -  
619 817 - 13.3 134   -  
626 - 44 31.2   324 344

Heat Treatment of steel grade STBL 690

Heat treated : 1431°C - 1162°C

Technological Curves of steel grade STBL 690

Cross Reference Table (Equivalent Grade) of STBL 690

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