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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.（≤）
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	359～107	σb/MPa
Yield Strength	998	σ 0.2 ≥/MPa
Elongation	83	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	657～936	-
HRC	30	-

Physical Properties

Thermal expansion	16-95	e-6/K
Thermal conductivity	96-11	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7858-2782	째C
Density	5618-3131	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