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

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ASTM 303Pb

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This page is mainly introduced the 303Pb chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 303Pb,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Steel, Corrosion-Resistant, Bars, Wire, and Forgings 18Cr - 9Ni - 0.21Pb (303Pb) Free-Machining, Solution Heat Treated
  • Steel Garde:303Pb
  • Type:Stainless Steels
  • Country:USA
  • Standard:ASTM
  • Standard Number:
    ITEM Standard Number Descriptions
    1 SAE AMS 5635F (2006) Steel, Corrosion-Resistant, Bars, Wire, and Forgings 18Cr - 9Ni - 0.21Pb (303Pb) Free-Machining, Solution Heat Treated
  • Metallographic Structure:Austenite
  • Application:Steel, Corrosion-Resistant, Bars, Wire, and Forgings 18Cr - 9Ni - 0.21Pb (303Pb) Free-Machining, Solution Heat Treated

Cross Reference Table(Equivalent Materials):

Material Standard Country
303 Pb UNS USA
XM-3 SAE USA
S30360 AISI USA

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.15
Si   1.00
Mn   2.00
P   0.04
S 0.12  0.25
Cr 17.0  19.0
Ni 8.00  10.0
Mo   0.60
Pb 0.12  0.30

Mechanical Properties

Tensile strength 525~562 σb/MPa
Yield Strength 965 σ 0.2 ≥/MPa
Elongation 72 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 946~762 -
HRC 30 -

Physical Properties

Thermal expansion 76-46 e-6/K
Thermal conductivity 76-69 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 0360-1022 째C
Density 4544-1428 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)
303Pb 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