Structural alloy spring steel - chrome-silicon PN-74/H-84032 55S2
| Steel grade | Standard | Chemical composition (%) | |||||||||
| C | Mn | Si | P | S | Cu | Cr | Ni | Mo | other | ||
| 55S2 | PN | 0,520,60 | 0,600,90 | 1,50 1,80 | max 0,040 | max 0,040 | max 0,25 | max0,30 | max0,40 | - | - |
| 55 Si 7 55Si756 Si 7 56Si7 1.5026 | DIN W.nr | 0,520,60 | 0,701,00 | 1,50 1,80 | max 0,045 | max 0,045 | - | - | - | - | - |
| 55S255С2 | GOST | 0,520,60 | 0,600,90 | 1,50 2,00 | max 0,035 | max 0,035 | max 0,20 | max 0,30 | max 0,25 | - | - |
| 56 SC 756SC7 | AFNOR | 0,530,59 | 0,600,90 | 1,60 2,00 | max 0,035 | max 0,035 | - | 0,250,45 | - | - | - |
| 56Si7 | EN | 0,520,60 | 0,600,90 | 1,60 2,00 | max 0,025 | max 0,025 | - | max 0,40 | max0,40 | max 0,10 | - |
| G 92550G92550 9255 | UNS AISI | 0,510,59 | 0,700,95 | 1,80 2,20 | max 0,035 | max 0,040 | - | - | - | - | - |
Steel used for the medium and low loaded shocks, coil springs, etc.
In the 55S2 grade or equivalent, we can provide round-rolled bars, forgings freely forged, round bars, square bars, flat bars, plates.
65G - manganese steel
50HF - chrome-vanadium steel
50HS - chrome-silicon
