Rod alloy steel

corrosion resistanthigh-strengthlow carbon

Alloy 316L is an austenitic stainless steel supplied in the hot worked and annealed condition. The addition of Mo provides the product with much improved corrosion resistance compared with Alloy 304, particularly with respect to pitting and crevice corrosion in chloride environments. Alloy 316L resists atmospheric corrosion, as well as, moderately oxidising and reducing environments. It also resists corrosion in polluted marine atmospheres. The alloy has excellent resistance to intergranular corrosion in the as-welded condition. It also provides higher creep, stress-to-rupture and tensile strength at elevated temperatures than a basic Alloy 304. As a fully austenitic grade it possesses excellent toughness, even down to cryogenic temperatures. This low carbon version of Alloy 316 is immune from the sensitisation caused by the precipitation of carbides at grain boundaries when heated, resulting in its widespread use in larger section welded components. It is readily formed and machined, although its relative toughness means that better machining is generally achieved at lower speeds with heavier feeds. Specifications 1.4404 ASTM A479/A276 S31603 Key Features: Pitting Resistance Equivalent number (PREN) of 25 compared with 19 for Alloy 304 Excellent ductility and impact strength at both ambient and sub-zero temperatures Low carbon version of Alloy 316 thereby immune from grain boundary sensitisation Excellent forming and welding characteristics Non-magnetic except after significant welding or cold working Applications: Process industry equipment in chemical containers, transport units, heat exchangers and organic & fatty acid production