GNI는 열처리강, 고탄소강, 합금 스트립강 제조업체입니다.
C, Si, Mn, P, S, Cu, Ni, Cr, Ni+Cr
| 탄소강 | |
| S50C | 0.47-0.53 / 0.15-0.35 / 0.60-0.90 / 0.03 / 0.035 / 0.3 / 0.2 / 0.2 / 0.35 |
| S70C | 0.65-0.75 / 0.15-0.30 / 0.60-0.90 / 0.03 / 0.035 / 0.3 / 0.2 / 0.2 / - |
| 카본 공구강 | |
| SK-4 | 0.90-1.0 / 0.35 / 0.50 / 0.03 / 0.03 / 0.25 / 0.25 / 0.3 |
| SK-5 | 0.8-0.9 / 0.35 / 0.50 / 0.03 / 0.03 / 0.25 / 0.25 / 0.3 |
| 합금 공구강 | |
| SKS-51 | 0.75-0.85 / 0.35 / 0.50 / 0.03 / 0.03 / 0.25 / 1.3-2.0 / 0.2-0.5 |
| 니켈크롬강 | |
| SNC631 | 0.27-0.3 / 0.15-0.35 / 0.35-0.65 / 0.03 / 0.03 / 0.3 / 2.5-3.0 / 0.6-1.0 |
| SNC836 | 0.32-0.4 |
| SNC415 | 0.12-0.18 |
| 망간강 | |
| Smn420 | 0.17-0.23 / 0.15-0.35 / 1.2-1.5 / 0.03 / 0.03 / 0.3 / 0.25 / 0.35 |
| Smn433 | 0.30-0.36 |
| 크롬 몰리브덴강 | |
| SCM415 | 0.13-0.18 / 0.15-0.35 / 0.6-0.85 / 0.03 / 0.03 / 0.3 / 0.25 / 0.9-1.20.15-0.3-Mo |
| SCM420 | 0.18-0.23 |
| SCM430 | 0.28-0.33 |
| SCM435 | 0.33-0.38 |
| SCM440 | 0.38-0.43 |
| 스프링강 | |
| SUP6 | 0.56-0.64 / 1.5-1.8 / 0.7-1.0 / 0.035 / 0.035 / 0.3 |
| SUP9 | 0.52-0.60 / 0.15-0.35 |
| SUP10 | 0.47-0.55 / 0.15-0.35 |
