A2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A2

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ISO A2

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This page is mainly introduced the A2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steels - Chemical composition

Cross Reference Table(Equivalent Materials):

Material Standard Country
A 268 S40800 SAE USA
A 959 S40800 SAE USA
S40800 AISI USA
SA-268 S40800 AMS USA
NA2 B.S. UK
NA20 B.S. UK
NA21 B.S. UK

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.15
Si   1.00
Mn 5.50  7.50
P   0.045
S   0.030
Cr 16.00  18.00
Ni 3.50  5.50
Mo  
N 0.05  0.25

Mechanical Properties

Tensile strength 833~143 σb/MPa
Yield Strength 605 σ 0.2 ≥/MPa
Elongation 95 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 088~318 -
HRC 30 -

Physical Properties

Thermal expansion 23-69 e-6/K
Thermal conductivity 85-93 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 1609-9754 째C
Density 9229-7253 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)
A2 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