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A 646 Grade Marage 300 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 646 Grade Marage 300

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SAE A 646 Grade Marage 300

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A 646 Grade Marage 300 Profile
A 646 Grade Marage 300 Chemical composition
A 646 Grade Marage 300 Mechanical Properties
A 646 Grade Marage 300 Physical Properties
A 646 Grade Marage 300 Heat treatment
A 646 Grade Marage 300 Size Availability
A 646 Grade Marage 300 Relevant products

Profile

This page is mainly introduced the A 646 Grade Marage 300 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 646 Grade Marage 300,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 Marage 300
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

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）	Similar	Remarks
C		0.03
Si		0.10
Mn		0.10
Ni		18.50
Cr
Al		0.10
Cu
Ti		0.60
Fe
Mo		5.00
Co		9.00

Mechanical Properties

Tensile strength	876～721	σb/MPa
Yield Strength	840	σ 0.2 ≥/MPa
Elongation	67	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	514～722	-
HRC	30	-

Physical Properties

Thermal expansion	17-52	e-6/K
Thermal conductivity	40-27	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0220-2230	째C
Density	5148-5757	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 Marage 300 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