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SA-199 Grade T21

America ASME SA-199GradeT21 无缝冷拔中间合金钢热交换器和冷凝器管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SA-199GradeT21 / SA-199 Grade T21
Category Grade Standard Region/Area Standard Content
Metals SA-199 Grade T21 ASME SA-199 America 无缝冷拔中间合金钢热交换器和冷凝器管

Chemical composition(mass fraction)(wt.%) of the SA-199 Grade T21

Element Min Max Similar

Mechanical Properties of steel grade SA-199 Grade T21

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)
566 (≥) 774 (≥) 14 11 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade SA-199 Grade T21

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
24 - -     0.13 -  
653 427 - 41.3 311   -  
672 - 23 11.2   132 241

Heat Treatment of steel grade SA-199 Grade T21

Heat treated : 1441°C - 1434°C

Technological Curves of steel grade SA-199 Grade T21

Cross Reference Table (Equivalent Grade) of SA-199 Grade T21

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