GOST 4756-91 (ISO 5447-80)
| Types (GOST) | Mass content, % | ||||
| Si | Mn | C | P | S | |
| At least | Up to | ||||
| МнС25 (PА) | from 25 | 60 | 0,5 | 0,05 | 0,02 |
| МнС25 (PБ) | from 25 | 60 | 0,5 | 0,25 | 0,02 |
| МнС22 (PА) | 20,0-25,0 | 65 | 1 | 0,1 | 0,02 |
| МнС22 (PБ) | 20,0-25,0 | 65 | 1 | 0,35 | 0,02 |
| МнС17 (PА) | 15,0-20,0 | 65 | 2,5 | 0,1 | 0,02 |
| МнС17 (PБ) | 15,0-20,0 | 65 | 2,5 | 0,6 | 0,02 |
| МнС12 (PА) | 10,0-15,0 | 65 | 3,5 | 0,1 | 0,02 |
| МнС12 (PБ) | 10,0-15,0 | 65 | 3,5 | 0,6 | 0,02 |
| Types (ISO) | Mass content, % | ||||
| Mn | Si | C | P | S | |
| At least | Up to | ||||
| FeMnSi12 | 60,0-75,0 | 10,0-15,0 | 3,5 | 0,35 | 0,03 |
| FeMnSi18 | 60,0-75,0 | 15,0-20,0 | 2,5 | 0,35 | 0,03 |
| FeMnSi18LP | 60,0-75,0 | 15,0-20,0 | 2,5 | 0,15 | 0,03 |
| FeMnSi22HP | 60,0-75,0 | 20,0-25,0 | 1,6 | 0,3 | 0,03 |
| FeMnSi22MP | 60,0-75,0 | 20,0-25,0 | 1,6 | 0,15 | 0,03 |
| FeMnSi22LP | 60,0-75,0 | 20,0-25,0 | 1,6 | 0,1 | 0,03 |
| FeMnSi23HP | 65,0-75,0 | 20,0-25,0 | 1 | 0,3 | 0,03 |
| FeMnSi23MP | 65,0-75,0 | 20,0-25,0 | 1 | 0,15 | 0,03 |
| FeMnSi23LP | 65,0-75,0 | 20,0-25,0 | 1 | 0,1 | 0,03 |
| FeMnSi28 | 65,0-75,0 | 25,0-30,0 | 0,5 | 0,2 | 0,03 |
| FeMnSi28LP | 65,0-75,0 | 25,0-30,0 | 0,5 | 0,1 | 0,03 |
| FeMnSi30HPP | 57,0-67,0 | 28,0-35,0 | 0,1 | 0,2 | 0,03 |
| FeMnSi30MP | 57,0-67,0 | 28,0-35,0 | 0,1 | 0,1 | 0,03 |
| FeMnSi30ELP | 57,0-67,0 | 28,0-35,0 | 0,1 | 0,05 | 0,03 |