ER 2209kua hangaia hei whakarewa i ngā maitai kowiri tira takirua pērā i te 2205 (Tau UNS N31803).
ER 2553e whakamahia ana hei whakarewa i ngā maitai kowiri tira takirua, kei roto nei te 25% o te chromium.
ER 2594he waea whakarewa superduplex. Ko te Tau Ātete Pitting (PREN) he 40 pea te iti rawa, ā, mā reira ka taea te kī ko te konganuku whakarewa he maitai kore waikura superduplex.
ER2209 ER2553 ER2594 Waea whakarewaTe Hanganga Matū
| Tau | C | Mn | Si | P | S | Cr | Ni |
| ER2209 | 0.03 mōrahi | 0.5 – 2.0 | 0.9 mōrahi | 0.03 mōrahi | 0.03 mōrahi | 21.5 – 23.5 | 7.5 – 9.5 |
| ER2553 | 0.04 mōrahi | 1.5 | 1.0 | 0.04 mōrahi | 0.03 mōrahi | 24.0 – 27.0 | 4.5 – 6.5 |
| ER2594 | 0.03 mōrahi | 2.5 | 1.0 | 0.03 mōrahi | 0.02 mōrahi | 24.0 – 27.0 | 8.0 – 10.5 |
Te wā tuku: Hurae-31-2023