This is a molybdenum bearing grade. This addition gives this grade better overall corrosion resistance properties than grade 304/304L, and higher creep strength at elevated temperatures. 316/316L gives useful service at room temperature in sulphuric acid of concentration lower than 15% and higher than 85%. It also resists chloride attack and is often selected for use in marine atmospheres. The .03 maximum carbon content of this grade enables use in applications where it is not possible to anneal after welding, and further enhances corrosion resistance.
Corrosion Resistance: Good resistance to a wider range of chemicals than 304/304L. Highly resistant to the complex sulphur compounds used in Pulp & Paper processing. Also resists attack of marine and corrosive industrial atmospheres.
Heat Resistance: Good oxidation resistance in intermittent service to 1600°F [871°C] and in continuous service to 1700°F [927°C]. Continuous use of 316/316L in 800 – 1575°F [427 – 857°C] is acceptable, as it is more resistant to carbide precipitation, and often performs well in temperatures fluctuating above and below this range.
Heat Treatment: Solution anneal and quench – heat to min. 1900°F [1040°C] and liquid cool immediately below 500°F [260°C] for maximum corrosion resistance. This grade cannot be hardened by thermal treatment.
This grade is available in all flanges and fittings.
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