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ZGD840-1030

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ZGD840-1030 ZG30Mn
#ZGD840-1030

Description

China GBT ZGD840-1030 Low alloy steel castings for general engineering and structural purposes and ZGD840-1030 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: ZGD840-1030
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy ZGD840-1030 GBT China Low alloy steel castings for general engineering and structural purposes
ZGD345-570
ZGD410-620
ZGD410-620
ZGD535-720
ZGD535-720
ZGD650-830
ZGD650-830
ZGD730-910
ZGD730-910
ZGD840-1030

Chemical composition(mass fraction)(wt.%) of the ZGD840-1030

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) Cu(%)
0.22-0.34 0.30-0.60 0.30-0.80 0.025 0.025 0.5-1.3 0.5-3.0 0.20-0.70 0.40

Mechanical Properties of steel grade ZGD840-1030

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)
822 (≥) 632 (≥) 24 34 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade ZGD840-1030

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 - -     0.12 -  
545 394 - 21.3 424   -  
634 - 22 42.2   443 131

Heat Treatment of steel grade ZGD840-1030

Heat treated : 1699°C - 1255°C

Technological Curves of steel grade ZGD840-1030

Cross Reference Table (Equivalent Grade) of ZGD840-1030

Grade Standard Country Application
ZGD840-1030 GBT China Low alloy steel castings for general engineering and structural purposes
ZGD840-1030 GBT China Low alloy steel castings for general engineering and structural purposes
ZGD840-1030 ZG30Mn
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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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