ER 2209dia natao hanamboarana vy tsy misy harafesina duplex toy ny 2205 (UNS Number N31803).
ER 2553dia ampiasaina voalohany indrindra hanamboarana vy tsy misy harafesina duplex izay misy chromium 25% eo ho eo.
ER 2594dia tariby fanaovana welding superduplex. Ny Pitting Resistance Equivalent Number (PREN) dia farafahakeliny 40, ka mahatonga ny metaly welding ho azo antsoina hoe vy tsy misy harafesina superduplex.
Tariby fandrefesana ER2209 ER2553 ER2594Firafitra simika
| kilasy | C | Mn | Si | P | S | Cr | Ni |
| ER2209 | 0.03 fara-fahabetsany | 0.5 – 2.0 | 0.9 ambony indrindra | 0.03 fara-fahabetsany | 0.03 fara-fahabetsany | 21.5 – 23.5 | 7.5 – 9.5 |
| ER2553 | 0.04 fara-fahabetsany | 1.5 | 1.0 | 0.04 fara-fahabetsany | 0.03 fara-fahabetsany | 24.0 – 27.0 | 4.5 – 6.5 |
| ER2594 | 0.03 fara-fahabetsany | 2.5 | 1.0 | 0.03 fara-fahabetsany | 0.02 fara-fahabetsany | 24.0 – 27.0 | 8.0 – 10.5 |
Fotoana fandefasana: 31 Jolay 2023