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DD404

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DD103 DC406
#DZ417G

Description

China GBT DD404 Single-CrystalSuperalloy and DD404 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: DD404
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy DD404 GBT China Single-CrystalSuperalloy
DZ17G
DZ22
DZ22B
DZ38G
DZ002
DZ125
DZ125L
DZ40M
DD402
DD103

Chemical composition(mass fraction)(wt.%) of the DD404

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) W(%) N(%) Cu(%) Co(%) Pb(%) B(%) Nb(%) Al(%) Ti(%) Ta(%) Mg(%) Sb(%) As(%) Sn(%) Ag(%) O(%) Fe(%)
≤0.01 0.200 0.200 0.010 0.010 8.50-9.50 Bal 1.40-2.00 5.50-6.50 0.0015 0.100 7.00-8.00 0.0005 0.010 0.35-0.70 3.40-4.00 3.90-4.70 3.50-4.80 0.003 0.0020 0.0010 0.0010 0.0005 0.0015 ≤0.50

Mechanical Properties of steel grade DD404

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)
813 (≥) 419 (≥) 23 33 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade DD404

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
34 - -     0.22 -  
371 472 - 23.3 333   -  
824 - 32 13.2   342 131

Heat Treatment of steel grade DD404

Heat treated : 1629°C - 1496°C

Technological Curves of steel grade DD404

Cross Reference Table (Equivalent Grade) of DD404

Grade Standard Country Application
DZ417G GBT China Progress in Directionally Solidified Super Alloys
DD404 GBT China Single-CrystalSuperalloy
DD103 DC406
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...

Rfq.: sales@longhaisteel.com
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