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A671 CF 70 GradeB

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America ASTM A671CF70GradeB 常温和低温电熔焊接钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: A671CF70GradeB / A671 CF 70 GradeB
Category Grade Standard Region/Area Standard Content
Metals A671 CF 70 GradeB ASTM A671 America 常温和低温电熔焊接钢管

Chemical composition(mass fraction)(wt.%) of the A671 CF 70 GradeB

Element Min Max Similar
C - 0.2100 -
Mn - 0.7000 -
P - 0.0250 -
S - 0.0250 -
Si 0.1500 0.4000 -
Ni 2.1000 2.5000 -

Mechanical Properties of steel grade A671 CF 70 GradeB

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)
897 (≥) 554 (≥) 33 41 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical Properties of steel grade A671 CF 70 GradeB

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 - -     0.12 -  
794 619 - 34.3 223   -  
575 - 14 22.2   231 111

Heat Treatment of steel grade A671 CF 70 GradeB

Heat treated : 1995°C - 1935°C

Technological Curves of steel grade A671 CF 70 GradeB

Cross Reference Table (Equivalent Grade) of A671 CF 70 GradeB

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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