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A312 Type 321

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America ASTM A312Type321 无缝和焊接奥氏体不锈钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A312Type321 / A312 Type 321
Category Grade Standard Region/Area Standard Content
Metals A312 Type 321 ASTM A312/A312M America 无缝和焊接奥氏体不锈钢管

Chemical composition(mass fraction)(wt.%) of the A312 Type 321

Element Min Max Similar
Ti - 0.7000 -
Si - 1.0000 -
S - 0.0300 -
P - 0.0450 -
Ni 9.0000 12.0000 -
N - 0.1000 -
Mn - 2.0000 -
Cr 17.0000 19.0000 -
C - 0.0800 -

Mechanical Properties of steel grade A312 Type 321

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)
168 (≥) 385 (≥) 33 14 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade A312 Type 321

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
44 - -     0.43 -  
776 161 - 41.3 411   -  
228 - 32 32.2   432 334

Heat Treatment of steel grade A312 Type 321

Heat treated : 1745°C - 1963°C

Technological Curves of steel grade A312 Type 321

Cross Reference Table (Equivalent Grade) of A312 Type 321

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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