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DZ640M

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DZ4125L DZ4
#DZ640M

Description

China GBT DZ640M Progress in Directionally Solidified Super Alloys and DZ640M Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: DZ640M
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy DZ640M GBT China Progress in Directionally Solidified Super Alloys
K25
DZ404
DZ405
DZ417G
DZ422
DZ422
DZ438G
DZ4002
DZ4125
DZ4125L

Chemical composition(mass fraction)(wt.%) of the DZ640M

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) W(%) Co(%) Pb(%) B(%) Al(%) Ti(%) Ta(%) Sb(%) As(%) Sn(%) Fe(%)
0.05-0.55 1.000 1.000 0.0400 0.040 24.50-26.50 9.50-11.50 0.10-0.50 7.00-8.00 Bal 0.0005 0.008-0.018 0.70-1.20 0.05-0.30 0.10-0.50 0.001 0.001 0.001 ≤2.00

Mechanical Properties of steel grade DZ640M

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)
943 (≥) 163 (≥) 21 33 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade DZ640M

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
31 - -     0.33 -  
833 958 - 41.3 443   -  
956 - 43 12.2   132 121

Heat Treatment of steel grade DZ640M

Heat treated : 1625°C - 1791°C

Technological Curves of steel grade DZ640M

Cross Reference Table (Equivalent Grade) of DZ640M

Grade Standard Country Application
DZ640M GBT China Progress in Directionally Solidified Super Alloys
DZ4125L DZ4
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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