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STS 321TPY

Korea KS STS321TPY 大尺寸焊接无缝焊接钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STS321TPY / STS 321TPY
Category Grade Standard Region/Area Standard Content
Metals STS 321TPY KS D 3588 Korea 大尺寸焊接无缝焊接钢管

Chemical composition(mass fraction)(wt.%) of the STS 321TPY

Element Min Max Similar
Ti - - -
Si - 1.0000 -
S - 0.0300 -
P - 0.0450 -
Ni 9.0000 13.0000 -
Mn - 2.0000 -
Cr 17.0000 19.0000 -
C - 0.0800 -

Mechanical Properties of steel grade STS 321TPY

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)
794 (≥) 915 (≥) 34 44 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical Properties of steel grade STS 321TPY

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
34 - -     0.12 -  
491 158 - 22.3 341   -  
676 - 23 32.2   412 432

Heat Treatment of steel grade STS 321TPY

Heat treated : 1578°C - 1536°C

Technological Curves of steel grade STS 321TPY

Cross Reference Table (Equivalent Grade) of STS 321TPY

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