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20CrH

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45H 40CrH
#20CrH

Description

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

Datasheet for: Steel Grades:Structure Steel: 20CrH
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 20CrH GBT China China structural steel and alloy steel
18CrNiMnMoA
45CrNiMoVA
18Cr2Ni4WA
25Cr2Ni4WA
38CrA
30CrMnMoTiA
30CrNi2MoVA
30SiMn2MoVA
30CrMnSiNi2A
45H

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

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) B(%) Ti(%) Other(%)
0.17-0.23 0.17-0.37 0.50-0.85 0.035 0.035 0.70-1.10 — — —

Mechanical Properties of steel grade 20CrH

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)
191 (≥) 716 (≥) 12 24 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade 20CrH

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
31 - -     0.41 -  
543 475 - 42.3 131   -  
421 - 11 44.2   122 321

Heat Treatment of steel grade 20CrH

Heat treated : 1297°C - 1459°C

Technological Curves of steel grade 20CrH

Cross Reference Table (Equivalent Grade) of 20CrH

Grade Standard Country Application
20CrH GBT China China structural steel and alloy steel
45H 40CrH
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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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