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20MnG

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20G 25MnG
#20MnG

Description

China GBT 20MnG China structural steel and alloy steel and 20MnG Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 20MnG
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 20MnG GBT China China structural steel and alloy steel
09MnNiDR
20g
22Mng
15CrMng
16Mng
19Mng
13MnNiCrMoNbg
13MnNiCrMoNbg
12CrlMoVg
20G

Chemical composition(mass fraction)(wt.%) of the 20MnG

C(％) Si(％) Mn(％) P(％) S(％)
0.17-0.24 0.17-0.37 0.70-1.00 0.03 0.03

Mechanical Properties of steel grade 20MnG

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)
644 (≥) 324 (≥) 13 14 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical Properties of steel grade 20MnG

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
14 - -     0.22 -  
895 384 - 32.3 114   -  
883 - 31 12.2   413 324

Heat Treatment of steel grade 20MnG

Heat treated : 1668°C - 1689°C

Technological Curves of steel grade 20MnG

Cross Reference Table (Equivalent Grade) of 20MnG

Grade Standard Country Application
20MnG GBT China China structural steel and alloy steel
20G 25MnG
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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