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ZG240-450BD

Description

China GBT ZG240-450BD Steel castings for pressure purposes and ZG240-450BD Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: ZG240-450BD
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy ZG240-450BD GBT China Steel castings for pressure purposes
ZGMn13-4
ZGMn13Cr
ZGMn13Cr2
ZGMn13Ni4
ZGMn13Mo
ZGMn13Mo2
ZG240-450A
ZG240-450AG
ZG240-450B
ZG240-450BG

Chemical composition(mass fraction)(wt.%) of the ZG240-450BD

C(%) Si(%) Mn(%) P(%) S(%)
≤0.20 ≤0.60 1.00-1.60 0.03 0.03

Mechanical Properties of steel grade ZG240-450BD

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)
396 (≥) 945 (≥) 12 22 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical Properties of steel grade ZG240-450BD

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 - -     0.42 -  
553 213 - 13.3 434   -  
414 - 21 24.2   423 424

Heat Treatment of steel grade ZG240-450BD

Heat treated : 1785°C - 1767°C

Technological Curves of steel grade ZG240-450BD

Cross Reference Table (Equivalent Grade) of ZG240-450BD

Grade Standard Country Application
ZG240-450BD GBT China Steel castings for pressure purposes

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