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A336 Grade F21 Class 3

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America ASTM A336GradeF21Class3 压力和高温零件的合金钢锻件 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A336GradeF21Class3 / A336 Grade F21 Class 3
Category Grade Standard Region/Area Standard Content
Metals A336 Grade F21 Class 3 ASTM A336/A336M America 压力和高温零件的合金钢锻件

Chemical composition(mass fraction)(wt.%) of the A336 Grade F21 Class 3

Element Min Max Similar
Si - 0.5000 -
S - 0.0250 -
P - 0.0250 -
Mo 0.8000 1.0600 -
Mn 0.3000 0.6000 -
Cr 2.7000 3.3000 -
C 0.0500 0.1500 -

Mechanical Properties of steel grade A336 Grade F21 Class 3

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)
913 (≥) 967 (≥) 42 13 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade A336 Grade F21 Class 3

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
32 - -     0.14 -  
183 577 - 11.3 322   -  
432 - 13 13.2   321 333

Heat Treatment of steel grade A336 Grade F21 Class 3

Heat treated : 1673°C - 1955°C

Technological Curves of steel grade A336 Grade F21 Class 3

Cross Reference Table (Equivalent Grade) of A336 Grade F21 Class 3

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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