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AF71 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of AF71

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UNS AF71

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This page is mainly introduced the AF71 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of AF71,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:AF71
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		0.30
Si		0.30
Mn		18.00
P
S
Ni
Cr		12.50
Al
Cu
Ti
Fe		remaining
N		0.20
Mo		3.00
W
V		0.90
B		0.20

Mechanical Properties

Tensile strength	875～351	σb/MPa
Yield Strength	128	σ 0.2 ≥/MPa
Elongation	89	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	555～535	-
HRC	30	-

Physical Properties

Thermal expansion	82-46	e-6/K
Thermal conductivity	97-37	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1809-3057	째C
Density	5380-5930	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)
AF71 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