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D-979

Favorite Datasheet
D6AC Discaloy
#D-979

Description

USA UNS SAE J 467 (1968), D-979 Specialsteel Special Purpose Alloys ("Superalloys") and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: D-979
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel D-979 Precipitation-Hardening UNS USA Special Purpose Alloys ("Superalloys")

Chemical composition(mass fraction)(wt.%) of the D-979

C Si Mn P S Ni Cr Al Cu Ti Fe Mo Co W B
≤0.06 ≤0.20 ≤0.25 ≤ ≥ ≤ ≥ ≤44.30 ≤14.9 ≤1.05 ≤ ≥ ≤3.00 ≤remaining ≤4.05 ≤ ≥ ≤3.65 ≤0.01

Mechanical Properties of steel grade D-979

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)
433 (≥) 643 (≥) 21 23 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade D-979

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
21 - -     0.24 -  
281 486 - 43.3 221   -  
525 - 13 43.2   343 443

Heat Treatment of steel grade D-979

Heat treated : 1274°C - 1927°C

Technological Curves of steel grade D-979

Cross Reference Table (Equivalent Grade) of D-979

Grade Standard Country Application
D-979

Relevant standard of D-979

SAE J 467 (1968) Special Purpose Alloys ("Superalloys") SAE-J-467-(1968).pdf
D6AC Discaloy
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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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