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Dur Di-staen 409L/409M Cyfansoddiad Cemegol Plât Llen
| Graddau | C | Ni | Si | S | Mn | P | Cr | Ti |
| SS 409 | 0.08 | 0.5 | 1.00 | 0. 045 | 1.00 | 0. 045 | 11.75 -10.5 | 0.75-6x C |
| SS 409L | 0.03 | 0.5 | 1.00 | 0.02 | 1.00 | 0.04 | 11.75-10.5 | 0.75- 6(C+N) |
| SS 409M | 0.03 | 1.00 | 0.5-1.5 | 10.80-12.50 | 1.5 max | 0. 040 | 0.030 | 0.03 |
Amser postio: Hydref-09-2022