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OkeyAutomatic sulfur manganese steel; the limited % of sulfur allows the good treatment of hardening after cementation.
| EUROPE | ITALY | GERMANY | FRANCE | UK | USA | ||
|---|---|---|---|---|---|---|---|
| EN 10087: 1998 EN 10277-3: 2008 |
(UNI 4838-80) |
(DIN 1651-88) |
(NF A 35-561-92) |
(BS 970 pt.3-91) | ASTM A 29 | ||
| Grade | N° | Werkstoff | N° | ||||
| 15SMn13 | 1.0725 | - | 15S10 | 1.0725 | - | (214M15) | (1117) |
| C | Si / max | Mn | P / max | S |
|---|---|---|---|---|
| 0,14÷0,18 | 0,40 | 1,00÷1,30 | 0,030 | 0,08÷0,13 |
| Size (mm) | as Rolled and/or as Rolled + Turned (+SH) | Cold Drawn (+C) | |||
|---|---|---|---|---|---|
| Hardness HB max | Rm (MPa) | Rp0,2 (MPa) min | Rm (MPa) | A5 (%) min | |
| 5≤d≤10 | - | - | 450 | 560÷840 | 6 |
| 10<d≤16 | - | - | 430 | 500÷800 | 7 |
| 16<d≤40 | 178 | 430÷600 | 390 | 470÷770 | 8 |
| 40<d≤63 | 172 | 430÷580 | 350 | 460÷680 | 9 |
| 63<d≤100 | 160 | 420÷540 | 265 | 440÷640 | 10 |
For size <5 mm the mechanical properties may be agreed at the time of enquiry and order
| Operation | °C |
|---|---|
| Hot forgings deformation | 950÷1250 |
| Normalizing | 880÷920 |
| Soft annealing | 650÷700 |
| Carburizing temperature | 880÷980 |
| Core-hardening temperature | 890÷910 |
| Case-hardening temperature | 780÷820 |
| Tempering | 150÷200 |
