The raw material. Top quality stainless steel for manway doors and manhole covers
Cold laminated sheets for the manwaydoors and for lids of the manhole covers and hot laminated stabilized and pickled strips for the frames of the manwaydoors. Raw material is supplied to Zorzini by the best and reliable European steelworks and processing plants, all certified, such as OutoKumpu, Arcelor-Mittal, Valbruna, CPC Inox.
Composition
| C | Mn | Cr | Ni | Mo | ||
|---|---|---|---|---|---|---|
| 304L (14307) | X2 CrNi 18/09 | 0,03 | 2 | 17÷19,5 | 8÷10 | 2÷2,5 |
| 316L (14404) | X2 CrNiMo 17-12-2 | 0,03 | 2 | 16,5÷18,5 | 10÷13 | 2÷2,5 |
Designation
| Europe/Italy | EN -10088 | 140301 X5 CrNi 18-10 | 14404 X2 CrNiMo 17-12-2 |
| U.S.A. | AISI | 304L | 316L |
| Germany | DIN 17441 | 1.4307 | 1.4404 |
| France | AFNOR | Z 3 CN 19/09 | Z 3 CND 12-02 |
| Sweden | SIS | 23 52 | 23 48 |
| Russia | GOST 5632-72 | 03 Kh 17N 14M2 |
