| Ọkọlọtọ China (GB) | American Standard (ASTM) | Ọkọlọtọ Japanese (JIS) | ọkọlọtọ British (BS) | German Standard (DIN) | Ọkọlọtọ French (NF) |
| Q195 | - | SS330 | S185 | St1kp | - |
| Q215 | GrC | SS400 | - | St2kp | - |
| Q235 | GrD | SS490 | S235JR | St3kp | E24-2 |
| Q255 | - | SS540 | - | St4kp | - |
| Q275 | - | - | S275JR | St44-2 | E28-2 |
| 20# | 1020 | S20C | EN3B | C22 | XC18 |
| 45# | 1045 | S45C | EN8 | C45E | XC48 |
| 40Cr | 5140 | SCr440 | EN18A | 42CrMo4 | 42CD4TS |
| 20CrMo | 4119 | SCM420 | EN19 | 42CrMo4 | 42CD4TS |
| 35CrMo | 4135 | SCM435 | EN24 | 34CrNiMo6 | 35NCD6 |
| 42CrMo | 4140 | SCM440 | EN19 | 42CrMo4 | 42CD4TS |
| Q195 | - | SS330 | S185 | St1kp | - |
Ekwesiri iburu n'uche na mba na mpaghara dị iche iche nwere ike ịnwe usoro ọkọlọtọ ihe eji eme ihe nchara, ya mere tebụl ntụnyere bụ maka ntụaka naanị.N'ime ngwa dị iche iche, a ga-ahọrọ ihe nchara kwesịrị ekwesị dabere na mkpa na gburugburu ebe obibi.
Oge nzipu: Jun-21-2023