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Grade S300Pb
Corresponding Standard NF A 35-561
Technical Delivery Conditions for Easy - Cutting Steel Bars and Rods for General Purpose Steel
Classification Alloy Steel
Properties Good Machinability
S300Pb Chemical Element Composition Content (%)
Component C Si Mn P S Pb
Minimum Value - - 1 - 0.32 0.2
Maximum Value 0.14 0.03 1.5 0.1 0.4 0.35
S300Pb Mechanical Properties
diameter
d
mm		 Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
%
Bar, Rod, Wire; d≤15 Hot Rolling 430~510 ≥290 ≥23
1 Approximate Comparison Table Free-Cutting Structural Steel
United States Germany France Sweden
ASTM/AISI UNS DIN EN/DIN W-Nr. NF EN/NF SS14
12L14 G12141 9SMnPb36 1.0737 S300Pb 1926
2 Approximate Comparison Table Free-Cutting Structural Steel
International Organization for Standardization Germany France European Standard
ISO DIN EN/DIN NF EN/NF EN Numerical Grade
11SMnPb37 9SMnPb36 S300Pb 11SMnPb37 1.0737

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