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12CrMoB

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England B.S. 12CrMoB Specification for low alloy steel electrodes for manual metal-arc welding and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 12CrMoB / 12CrMoB
Category Grade Standard Region/Area Standard Content
Metals 12CrMoB BS 2493 England Specification for low alloy steel electrodes for manual metal-arc welding

Chemical composition(mass fraction)(wt.%) of the 12CrMoB

Element Min Max Similar
V - 0.3000 -
Si - 0.8000 -
S - 0.0250 -
P - 0.0250 -
Ni 0.3000 0.8000 -
Mo 0.8000 1.2000 -
Mn 0.3000 1.0000 -
Cr 11.0000 12.5000 -
C - 0.2300 -

Mechanical Properties of steel grade 12CrMoB

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)
447 (≥) 942 (≥) 24 23 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 424

Physical Properties of steel grade 12CrMoB

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
13 - -     0.14 -  
655 911 - 22.3 344   -  
731 - 42 22.2   222 244

Heat Treatment of steel grade 12CrMoB

Heat treated : 1733°C - 1712°C

Technological Curves of steel grade 12CrMoB

Cross Reference Table (Equivalent Grade) of 12CrMoB

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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