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GX2CrNiMnMoNNb21-15-4-3

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1.4538 1.4569
#GX2CrNiMnMoNNb21-15-4-3

Description

GX2CrNiMnMoNNb21-15-4-3 Mould Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Mould Steel: GX2CrNiMnMoNNb21-15-4-3
Category Type Steel Grade Standard Country Application
Steel GradesMould Steel GX2CrNiMnMoNNb21-15-4-3
GX5CrNiCu16-4
1.4525
GX4CrNiCuNb16-4
1.4525
GX2CrNiMoCuN20-18
1.4531
GX2CrNiMoCuN25-20
1.4536
GX1CrNiMoCuN25-20-5
1.4538

Chemical composition(mass fraction)(wt.%) of the GX2CrNiMnMoNNb21-15-4-3

C
≤		 Si
≤		 Mn
≤		 P
≤		 S
≤		 Cr Ni
 0.03 1.00  0.30-0.60  0.025  0.010  20.0-22.0  14.0-17.0 
Mo Al Cu Nb Ti V Ce
 3.00-3.50     ≤0.25       
N Co Pb B Other    
0.20-0.35             
             

Mechanical Properties of steel grade GX2CrNiMnMoNNb21-15-4-3

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)
443 (≥) 189 (≥) 24 41 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade GX2CrNiMnMoNNb21-15-4-3

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
21 - -     0.24 -  
258 179 - 41.3 313   -  
611 - 33 31.2   121 124

Heat Treatment of steel grade GX2CrNiMnMoNNb21-15-4-3

Heat treated : 1364°C - 1413°C

Technological Curves of steel grade GX2CrNiMnMoNNb21-15-4-3

1.4538 1.4569
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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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