Why is 316 Quality Stainless?
316L grade stainless steel contains more nickel & molybdenum comparing to 304 grade stainless steel. Due to it's chemical contents it has good resistance against corrosion under harsh conditions (sea water, acidic liquids…etc.), therefore it last longer than 304 when used for Chimney systems. Moreover the breaking strength of 316L is much more comparing to 304. In spite of that the chemical content of 316L & 316 are similar but 316L contains less carbon, therefore 316L does not need annealing after welding
| 304 | 304L | 316 | 316L | |
| Element | % Bileşenleri | |||
| Karbon (C) | 0.08 | 0.035 | 0.08 | 0.035 |
| Mangan (max) | 2.00 | 2.00 | 2.00 | 2.00 |
| Fosfor (max) | 0.040 | 0.040 | 0.040 | 0.040 |
| Sülfür (max) | 0.030 | 0.030 | 0.030 | 0.030 |
| Silisyum(max) | 0.75 | 0.75 | 0.030 | 0.030 |
| Nikel | 8.00 - 11.00 | 8.00 - 13.00 | 10.00 - 14.00 | 10.00 - 15.00 |
| Krom | 18.00 - 20.00 | 18.00 - 20.00 | 16.00 - 18.00 | 16.00 - 18.00 |
| Molibden | yok | yok | 2.00 - 3.00 | 2.00 - 3.00 |