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A213 Grade T21

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America ASTM A213GradeT21 无缝铁素体和奥氏体合金钢锅炉、过热器和换热器管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A213GradeT21 / A213 Grade T21
Category Grade Standard Region/Area Standard Content
Metals A213 Grade T21 ASTM A213/A213M America 无缝铁素体和奥氏体合金钢锅炉、过热器和换热器管

Chemical composition(mass fraction)(wt.%) of the A213 Grade T21

Element Min Max Similar
Mo 0.8000 1.0600 -
Cr 2.6500 3.3500 -
P - 0.0250 -
S - 0.0250 -
Mn 0.3000 0.6000 -
Si - 0.5000 -
C 0.0500 0.1500 -

Mechanical Properties of steel grade A213 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)
615 (≥) 655 (≥) 21 13 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade A213 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
34 - -     0.31 -  
264 395 - 41.3 212   -  
517 - 24 34.2   413 221

Heat Treatment of steel grade A213 Grade T21

Heat treated : 1141°C - 1848°C

Technological Curves of steel grade A213 Grade T21

Cross Reference Table (Equivalent Grade) of A213 Grade T21

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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