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Niagara LaSalle 4140 Leaded Cold Finished Steel Bar

Category Metal , Ferrous Metal , Alloy Steel , AISI 4000 Series Steel
Manufacturer Niagara LaSalle
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Niagara LaSalle 4140 Leaded Cold Finished Steel Bar.pdf
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Material Notes:
The addition of lead to this grade permits the production of some 25% more parts with excellent finish and good tool life. Machinability is raised to 145 sfm. Like 4140 annealed, it responds well to heat treatment with good strength and wear resistance, excellent toughness, good ductility in the quenched and tempered condition.Information provided by Niagra LaSalle Corporation
Component Elements Properties Metric English Comments
Carbon, C 0.38 - 0.43 %
0.38 - 0.43 %
Chromium, Cr 0.80 - 1.1 %
0.80 - 1.1 %
Iron, Fe 96.445 - 97.62 %
96.445 - 97.62 %
as balance
Lead, Pb 0.15 - 0.35 %
0.15 - 0.35 %
Manganese, Mn 0.75 - 1.0 %
0.75 - 1.0 %
Molybdenum, Mo 0.15 - 0.25 %
0.15 - 0.25 %
Phosphorous, P <= 0.035 %
<= 0.035 %
Silicon, Si 0.15 - 0.35 %
0.15 - 0.35 %
Sulfur, S <= 0.040 %
<= 0.040 %
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