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303Pb

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303 Pb XM-3
#303Pb

Description

USA ASTM SAE AMS 5635F (2006) , 303Pb Specialsteel Steel, Corrosion-Resistant, Bars, Wire, and Forgings 18Cr - 9Ni - 0.21Pb (303Pb) Free-Machining, Solution Heat Treated and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: 303Pb
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 303Pb Austenite ASTM USA Steel, Corrosion-Resistant, Bars, Wire, and Forgings 18Cr - 9Ni - 0.21Pb (303Pb) Free-Machining, Solution Heat Treated

Chemical composition(mass fraction)(wt.%) of the 303Pb

C Si Mn P S Cr Ni Mo Pb
≤0.15 ≤1.00 ≤2.00 ≤0.04 0.12 -0.25 17.0 -19.0 8.00 -10.0 ≤0.60 0.12 -0.30

Mechanical Properties of steel grade 303Pb

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
651 (≥) 199 (≥) 33 13 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade 303Pb

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
42 - -     0.42 -  
744 494 - 12.3 234   -  
951 - 23 31.2   334 212

Heat Treatment of steel grade 303Pb

Heat treated : 1822°C - 1261°C

Technological Curves of steel grade 303Pb

Relevant standard of 303Pb

SAE AMS 5635F (2006) Steel, Corrosion-Resistant, Bars, Wire, and Forgings 18Cr - 9Ni - 0.21Pb (303Pb) Free-Machining, Solution Heat Treated SAE-AMS-5635F--(2006)-.pdf
303 Pb XM-3
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