303Se chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 303Se

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YB 303Se

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This page is mainly introduced the 303Se chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 303Se,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
303Se
  • Steel Garde:303Se
  • Type:Stainless Steels
  • Country:USA
  • Standard:YB
  • Standard Number:
    ITEM Standard Number Descriptions
    1 SAE AMS 5640 Stainless and heat resisting steels
    2 SAE AMS 7538 Stainless and heat resisting steels
  • Metallographic Structure:Austenite
  • Application:Stainless and heat resisting steels

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.15
Si   1.00
Mn   2.00
P   0.2
S   0.06
Cr 17.0  19.0
Ni 8.00  10.0
Se 0.15 

Mechanical Properties

Tensile strength 839~848 σb/MPa
Yield Strength 609 σ 0.2 ≥/MPa
Elongation 47 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 288~876 -
HRC 30 -

Physical Properties

Thermal expansion 76-99 e-6/K
Thermal conductivity 68-94 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8128-7659 째C
Density 0357-1804 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)
303Se 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