Y12PB Free Cutting Steel Bar

 

Y12Pb free cutting steel, machinability is good, there is no direction of performance, and high mechanical properties, commonly used in the manufacture of more important mechanical parts, precision instrument parts.

 

Chemical Composition:

 

  • Carbon C: 0.08 ~ 0.16
  • Silicon Si: ≤0.15
  • Manganese Mn: 0.70 to 1.10
  • Sulfur: 0.15 ~ 0.25
  • Phosphorus P: 0.05-0.10
  • Lead Pb: 0.15 ~ 0.35

 

Mechanical Properties:


  • Tensile strength σb (MPa): 
    • (hot rolling) 390 ~ 540; 
    • (cold drawn) steel thickness or diameter:
      • 8 ~ 20: 530 ~ 755;
      • > 20 ~ 30: 510 ~ 735;
      • > 30: 490 ~ 685

  • Elongation δ5 (%): (hot rolling) ≥ 22; (cold rolling) ≥ 7.0
  • Section shrinkage ψ (%): (hot rolling) ≥36
  • Hardness: (hot rolling) ≤ 170HB; (cold drawn) 152 ~ 217HB

 

Reference to the corresponding steel:

 

  • China GB Y12Pb;
  • Russia ГОСТ -;
  • American ASTM 12L13,
  • UNS G12134;
  • British BS -;
  • France NF AD37Pb / 10Pb2 / 10PbF2;
  • Germany DIN 10SPb20;
  • Japan JIS SUM22L;
  • International ISO 11SMnPb28.

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