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GCr4

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30W4Cr2VA GCr15
#GCr4

Description

China GBT GCr4 China structural steel and alloy steel and GCr4 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: GCr4
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel GCr4 GBT China China structural steel and alloy steel
60Si2Mn
60Si2MnA
60Si2CrA
60Si2CrVA
55CrMnA
60CrMnA
60CrMnMoA
50CrVA
60CrMnBA
30W4Cr2VA

Chemical composition(mass fraction)(wt.%) of the GCr4

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) Cu(%)
0.95-1.05 0.15-0.35 0.15-0.30 0.025 0.02 0.35-0.50 Max 0.25 Max 0.08 Max 0.20

Mechanical Properties of steel grade GCr4

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)
351 (≥) 721 (≥) 14 33 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 414

Physical Properties of steel grade GCr4

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
42 - -     0.33 -  
672 932 - 42.3 442   -  
967 - 12 13.2   244 241

Heat Treatment of steel grade GCr4

Heat treated : 1279°C - 1945°C

Technological Curves of steel grade GCr4

Cross Reference Table (Equivalent Grade) of GCr4

Grade Standard Country Application
GCr4 GBT China China structural steel and alloy steel
30W4Cr2VA GCr15
Available Suppliers
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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