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ZG340-640

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ZG310-570 ZG15
#ZG340-640

Description

China GBT ZG340-640 carbon steel castings for general engineering purpose and ZG340-640 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: ZG340-640
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy ZG340-640 GBT China carbon steel castings for general engineering purpose
ZG45Ni35Cr26
RZG200-400
RZG230-450
RZG270-500
RZG310-570
RZG340-640
ZG200-400
ZG230-450
ZG270-500
ZG310-570

Chemical composition(mass fraction)(wt.%) of the ZG340-640

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) V(%) Cu(%)
≤0.60 ≤0.50 ≤0.90 ≤0.040 ≤0.040 ≤0.35 ≤0.30 ≤0.20 ≤0.05 ≤0.30

Mechanical Properties of steel grade ZG340-640

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)
557 (≥) 387 (≥) 21 22 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade ZG340-640

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
13 - -     0.24 -  
612 653 - 34.3 433   -  
965 - 33 13.2   411 144

Heat Treatment of steel grade ZG340-640

Heat treated : 1391°C - 1472°C

Technological Curves of steel grade ZG340-640

Cross Reference Table (Equivalent Grade) of ZG340-640

Grade Standard Country Application
RZG340-640 GBT China Investment casting with carbon steel
ZG340-640 GBT China carbon steel castings for general engineering purpose
ZG310-570 ZG15
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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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