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Grade12

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#Grade12

Description

USA ASTM Grade12 Steel Castings Suitable for Pressure Service and Grade12 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: Grade12
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy Grade12 ASTM USA Steel Castings Suitable for Pressure Service
52100
Grade1
Grade2
Grade4
Grade6
Grade7
Grade8
Grade9
Grade10
Grade11

Chemical composition(mass fraction)(wt.%) of the Grade12

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％)
0.05-0.20 0.6 0.40-0.70 0.04 0.045 0.50-0.90 0.60-1.00 0.90-1.20

Mechanical Properties of steel grade Grade12

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)
217 (≥) 879 (≥) 42 44 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 231

Physical Properties of steel grade Grade12

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
22 - -     0.12 -  
941 146 - 13.3 213   -  
189 - 12 32.2   221 411

Heat Treatment of steel grade Grade12

Heat treated : 1327°C - 1619°C

Technological Curves of steel grade Grade12

Cross Reference Table (Equivalent Grade) of Grade12

Grade Standard Country Application
Grade12 ASTM USA Steel Castings Suitable for Pressure Service
Grade12 ASTM USA Steel Castings Suitable for Pressure Service
Grade11 Grade13
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Jiangyou Longhai Special Steel Co.,Ltd.

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