11SMn30 Free Cutting Steel Bar

 

11SMn30 (DIN 1.0715) free cutting steel is S-P composite high sulfur, low silicon free cutting steel. Machinability significantly higher than Y12 , production efficiency than Y12 steel increased by 30 ~ 50%, especially tapping, tap life than Y12 more than twice, 11SMn30 (1.0715) free cutting steel is often used in the manufacture of important standard parts, Such as bolts, nuts, pipe joints, spring seats and so on.

 

Chemical Composition:

 

CSiMnPS
max   0.14max   0.050.9 - 1.3max   0.110.27 - 0.33

 

 

Mechanical properties of   steel   11SMn30 (1.0715)

 

Nominal thickness (mm):  5 - 1010 - 1616 - 4040 - 6363 - 100
Rm - Tensile strength (MPa) (+C)510-810490-760460-710400-650360-630


 

Nominal thickness(mm):  5 - 1010 - 1616 - 4040 - 6363 - 100
Rp0.2 0.2% proof strength (MPa) (+C)440410375305245


 

Nominal thickness (mm):    5 - 1010 - 1616 - 4040 - 100
A - Min. elongation at fracture (%) (+C)6789


 

  Brinell hardness   (HBW):   (+SH)107 - 169


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