SA-268 S44300 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-268 S44300

AMS SA-268 S44300

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This page is mainly introduced the SA-268 S44300 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-268 S44300,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

  • Steel Garde:SA-268 S44300
  • Type:Stainless Steels
  • Country:USA
  • Standard:AMS
  • Standard Number:
    ITEM Standard Number Descriptions
    1 SA-268/SA-268M Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
  • Metallographic Structure:Ferrite
  • Application:Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.02
Mn   1.00
Si   1.00
P   0.04
S   0.03
Cr 18.00  23.00
Ni   0.50
Mo  
Cu 0.90  1.25

Mechanical Properties

Tensile strength 022~900 σb/MPa
Yield Strength 777 σ 0.2 ≥/MPa
Elongation 12 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 088~062 -
HRC 30 -

Physical Properties

Thermal expansion 06-87 e-6/K
Thermal conductivity 69-02 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 3383-7420 째C
Density 7855-3928 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)
SA-268 S44300 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