317L: A 3%Mo minimum austenitic stainless steel (317L grade 317L (317L) is an austenitic stainless steel with a 3% molybdenum addition. Alloy 317L (317L) exhibits
an austenitic microstructure, free of chromium carbide precipitations at grain boundaries. The grade contains some
residual ferrite (after solution annealing (1100 - 1150°C / 2012 - 2102°F)) and water quenching.
The high molybdenum content gives this steel a higher resistance to corrosion in sulfuric media than standard grades.