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45H

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30CrMnSiNi2A 20CrH
#45H

Description

China GBT 45H China structural steel and alloy steel and 45H Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 45H
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 45H GBT China China structural steel and alloy steel
40CrNiMoA
18CrNiMnMoA
45CrNiMoVA
18Cr2Ni4WA
25Cr2Ni4WA
38CrA
30CrMnMoTiA
30CrNi2MoVA
30SiMn2MoVA
30CrMnSiNi2A

Chemical composition(mass fraction)(wt.%) of the 45H

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) B(%) Ti(%) Other(%)
0.42-0.50 0.17-0.37 0.50-0.85 0.04 0.04 Max 0.25 — — —

Mechanical Properties of steel grade 45H

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)
311 (≥) 452 (≥) 11 34 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade 45H

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 - -     0.43 -  
435 575 - 23.3 441   -  
928 - 14 32.2   112 212

Heat Treatment of steel grade 45H

Heat treated : 1635°C - 1642°C

Technological Curves of steel grade 45H

Cross Reference Table (Equivalent Grade) of 45H

Grade Standard Country Application
CPM Rex 45HS AISI USA Powder metallurgy high-speed tool steel
5145H AS Australia Australia Structural steel
45H GBT China China structural steel and alloy steel
SCM445H CNS China China Taiwan Structural steel
30CrMnSiNi2A 20CrH
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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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