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

SAE A 646 Grade Marage 300

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

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 087~547 σb/MPa
Yield Strength 046 σ 0.2 ≥/MPa
Elongation 66 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 298~799 -
HRC 30 -

Physical Properties

Thermal expansion 81-72 e-6/K
Thermal conductivity 86-87 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 5220-1911 째C
Density 9218-9079 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

Technical specification/standard for download

Hot keywords:Marage-300
Previous: Marage 250
Next: Marage 300