Iron Based Alloys:
We offer a range of stainless steels (iron based alloys) which have:
a resistance to corrosion superior to that of the more common austenitic grades; superior resistance to high temperature corrosion; or a combination of corrosion resistance and strength.
Contact us for more information regarding our Stainless Steel Alloys.
Please click here to view our Duplex Alloys.
| GRADE | MAJOR APPLICATIONS | AVAILABILITY | COMPOSITION | |
|---|---|---|---|---|
| 17-4PH UNS S17400 W Nr. 1.4542 | A precipitation (age hardenable) stainless steel offering high strength and hardness, good corrosion resistance and fabricating characteristics. | Selected items from local stock; balance imported; ex-stock or mill availability | 78Fe-17Cr-4Ni-4Cu-Cb | |
| 254SMO UNS S31254 W Nr. 1.4547 | A high alloy austenitic stainless steel having greater resistance to pitting and crevice corrosion than ALLOY 904L. Thus a useful alloy for more demanding seawater, desalination, bleach plant and chemical plant applications. Also flue gas cleaning. | Selected items from local stock; balance imported; ex-stock or mill availability | 55Fe-20Cr-18Ni-6.1Mo-0.5Cu-N | |
| 316Ti UNS S31635 W Nr. 1.4571 | A stabilized grade of stainless steel having similar corrosion properties to 316/316L but with enhanced resistance to intergranular corrosion and elevated temperature mechanical properties. | Imported; ex-stock or mill availability | 69Fe-17Cr-12Ni-2Mo-Ti | |
| 321 UNS S32100 W Nr. 1.4541 | A stabilized grade of stainless steel having similar corrosion properties to 304/304L but with enhanced resistance to intergranular corrosion and elevated temperature mechanical properties. | Selected items from local stock; balance imported; ex-stock or mill availability | 72Fe-18Cr-10Ni-Ti | |
| 431 UNS S43100 W Nr. 1.4057 | A heat treatable stainless steel with useful corrosion resistance and mechanical properties (strength and toughness). Used for pump and valve components and fasteners. | Selected items from local stock; balance imported; ex-stock or mill availability | 80Fe-16Cr-2Ni-C | |
| ALLOY 20 UNS N08020 W Nr. 2.4660 | Often used in sulphuric and phosphoric acids. | Imported; ex-stock or mill availability | 40Fe-20Cr-33Ni-2.5Mo-4Cu-Cb |
| ALLOY 330 UNS N08330 W Nr. 1.4864 | Good scaling resistance in air and combustion gases. Useful for a wide range of furnace parts at temperatures up to 1100°C. | Imported; ex-stock or mill availability | 43Fe-19Cr-35Ni-1.25Si | |
| ALLOY 904-6% Mo UNS N08925 W Nr. 1.4529 | The higher molybdenum content than ALLOY 904L gives increased resistance to pitting and crevice corrosion in acidic environments. Used in seawater, pulp and paper industry, and pollution control systems. | Imported; ex-stock or mill availability | 47.5Fe-20Cr-25Ni-6Mo-1.5Cu |
| ALLOY 904L UNS N08904 W Nr. 1.4539 | An austenitic stainless steel having good resistance to general corrosion, pitting and crevice corrosion in acidic environments. Used in seawater, pulp and paper industry, and pollution control systems. | Comprehensive range of plate, bar and pipe from local stock; also imports from stock & mill production. | 49Fe-20Cr-25Ni-4.5Mo-1.5Cu |
| | GRADE 309 UNS S30900 W Nr. 1.4828 | Another stainless steel for use at high temperatures but with lower nickel than GRADE 310 enabling the alloy to be more resistant to sulphidation. | Imported; ex-stock or mill availability | 64Fe-23Cr-13Ni |
| GRADE 310 UNS S31000 W Nr. 1.4841 | A high temperature stainless steel having useful strength and oxidation resistance. GRADE 310S is a controlled carbon variant while GRADE 314 has a higher silicon content and hence slightly better oxidation resistance. | Selected items from local stock; balance imported; ex-stock or mill availability | 55Fe-25Cr-20Ni | |