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D-979 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of D-979

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UNS D-979

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This page is mainly introduced the D-979 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of D-979,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Special Purpose Alloys ("Superalloys")

Steel Garde:D-979
Type:Stainless Steels
Country:USA
Standard:UNS
Standard Number:

ITEM Standard Number Descriptions

1 SAE J 467 (1968) Special Purpose Alloys ("Superalloys")
Metallographic Structure:Precipitation-Hardening
Application:Special Purpose Alloys ("Superalloys")

ITEM	Standard Number	Descriptions
1	SAE J 467 (1968)	Special Purpose Alloys ("Superalloys")

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）	Similar	Remarks
C		0.06
Si		0.20
Mn		0.25
P
S
Ni		44.30
Cr		14.9
Al		1.05
Cu
Ti		3.00
Fe		remaining
Mo		4.05
Co
W		3.65
B		0.01

Mechanical Properties

Tensile strength	519～663	σb/MPa
Yield Strength	777	σ 0.2 ≥/MPa
Elongation	46	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	915～102	-
HRC	30	-

Physical Properties

Thermal expansion	52-18	e-6/K
Thermal conductivity	48-84	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8596-1965	째C
Density	4617-6659	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
D-979 Stainless Steels	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk