Marine grade stainless steel 316 has been around for a long time. Now there’s an alternative, that’s even better – grade 445M2 from Austral Wright Metals. Skip to content. ... Pre or post-heating or ...

Researchers have made a major breakthrough in the 3D printing of 316L, a type of versatile 'marine grade' stainless steel. ... 3D-printed stainless steel is up to 3 times tougher than alternatives ...

These propellers, of diameters 2900 mm and 3500 mm, have a combined weight of over 25 tonnes of high quality stainless steel and will be used for two contra-rotating podded drives.