GOST : Chemical composition of main steel grades smelted at the works.
Fraction of total mass of elements %
Steel Grade | C | Mn | Si | S | P | Ni | Cu | Cr |
GOST 380-94 | ||||||||
ST1KP/PS | 0.06-0.12 | 0.25-0.5 | 0.05 | 0.05 | 0.04 | 0.3 | 0.3 | 0.3 |
ST2/KP/PS | 0.09-0.15 | 0.25-0.5 | 0.05 | 0.05 | 0.04 | 0.3 | 0.3 | 0.3 |
ST2SP | 0.09-0.15 | 0.25-0.5 | 0.15-0.3 | 0.05 | 0.04 | 0.3 | 0.3 | 0.3 |
ST3KP/PS | 0.14-0.22 | 0.3-0.6 | 0.05 | 0.05 | 0.04 | 0.3 | 0.3 | 0.3 |
ST3SP | 0.14-0.22 | 0.4-0.65 | 0.15-0.3 | 0.05 | 0.04 | 0.3 | 0.3 | 0.3 |
ST4PS | 0.18-0.27 | 0.4-0.7 | 0.05 | 0.05 | 0.04 | 0.3 | 0.3 | 0.3 |
ST4SP | 0.18-0.27 | 0.4-07 | 0.15-0.3 | 0.05 | 0.04 | 0.3 | 0.3 | 0.3 |
ST5PS | 0.18-0.27 | 0.5-08 | 0.05 | 0.05 | 0.04 | 0.3 | 0.3 | 0.3 |
ST5SP | 0.28-0.37 | 0.5-0.8 | 0.15-0.3 | 0.05 | 0.04 | 0.3 | 0.3 | 0.3 |
GOST | ||||||||
08KP/PS | 0.05-0.12 | 0.25-0.5 | 0.03 | 0.04 | 0.0035 | 0.3 | 0.3 | 0.1 |