24 July 2021 Free-Cutting Steel Bar
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:
C | Si | Mn | P | S |
---|---|---|---|---|
max 0.14 | max 0.05 | 0.9 - 1.3 | max 0.11 | 0.27 - 0.33 |
Mechanical properties of steel 11SMn30 (1.0715)
Nominal thickness (mm): | 5 - 10 | 10 - 16 | 16 - 40 | 40 - 63 | 63 - 100 |
Rm - Tensile strength (MPa) (+C) | 510-810 | 490-760 | 460-710 | 400-650 | 360-630 |
Nominal thickness(mm): | 5 - 10 | 10 - 16 | 16 - 40 | 40 - 63 | 63 - 100 |
Rp0.2 0.2% proof strength (MPa) (+C) | 440 | 410 | 375 | 305 | 245 |
Nominal thickness (mm): | 5 - 10 | 10 - 16 | 16 - 40 | 40 - 100 |
A - Min. elongation at fracture (%) (+C) | 6 | 7 | 8 | 9 |
Brinell hardness (HBW): (+SH) | 107 - 169 |