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A 646 Grade H-11 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 646 Grade H-11

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SAE A 646 Grade H-11

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This page is mainly introduced the A 646 Grade H-11 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 646 Grade H-11,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings

Steel Garde:A 646 Grade H-11
Type:Stainless Steels
Country:USA
Standard:SAE
Standard Number:

ITEM Standard Number Descriptions

1 A 646/A 646M (2011) Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings
Metallographic Structure:Precipitation-Hardening
Application:Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings

ITEM	Standard Number	Descriptions
1	A 646/A 646M (2011)	Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings

Relevant products:

Incoloy800 round bar

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 43 Fh 11	SAE	USA
A 681 H11	SAE	USA
EH-11	UNS	USA
EH11K	International	USA
H11	ASTM	USA
H11	ASTM	USA
H11	ASTM	USA
H11	ASTM	USA
H11	UNS	USA
H11	UNS	USA
H11	UNS	USA
H11	UNS	USA
H11	UNS	USA
H11	UNS	USA
H11	UNS	USA
SUH 11	UNS	USA
SUH 11M	UNS	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）	Similar	Remarks
C		0.40
Si		0.90
Mn		0.30
P
S
Ni
Cr		5.00
Al
Cu
Ti
Fe		remaining
Mo		1.30
Co
V		0.50

Mechanical Properties

Tensile strength	403～636	σb/MPa
Yield Strength	739	σ 0.2 ≥/MPa
Elongation	31	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	943～645	-
HRC	30	-

Physical Properties

Thermal expansion	40-32	e-6/K
Thermal conductivity	94-51	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9256-7376	째C
Density	3420-4934	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)
A 646 Grade H-11 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