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A645 Grade B

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America ASTM A645GradeB 压力容器用经特殊热处理的5%镍合金钢板 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A645GradeB / A645 Grade B
Category Grade Standard Region/Area Standard Content
Metals A645 Grade B ASTM A645/A645M America 压力容器用经特殊热处理的5%镍合金钢板

Chemical composition(mass fraction)(wt.%) of the A645 Grade B

Element Min Max Similar
Si 0.1300 0.3300 -
S - 0.0150 -
P - 0.0250 -
Ni 4.9000 6.1000 -
N - 0.0100 -
Mo 0.0900 0.3300 -
Mn 0.8400 1.5900 -
Cr 0.0600 1.0500 -
C - 0.1500 -
Al 0.0150 0.0600 -

Mechanical Properties of steel grade A645 Grade B

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)
496 (≥) 631 (≥) 14 11 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade A645 Grade B

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 - -     0.11 -  
783 652 - 33.3 411   -  
846 - 14 33.2   414 113

Heat Treatment of steel grade A645 Grade B

Heat treated : 1524°C - 1846°C

Technological Curves of steel grade A645 Grade B

Cross Reference Table (Equivalent Grade) of A645 Grade B

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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