Description: CLC 18-15-4L (317L) is an austenitic stainless steel with a 3% minimum Molybdenum addition. Alloys CLC 18-15-4L (317L) exhibit austenitic microstructure free of deleterious carbide precipitations in grain boundaries. The grade contains some residual ferrite (=2%) after solution annealing (1100 - 1150°C/ 2012 - 2102°F) and water quenching. Its low carbon content avoids the intergranular corrosion, even on welded pieces without an ulterior water quenching. The high Molybdenum content gives this steel a higher resistance to corrosion in sulfuric media than standard grades (CLC17-12-2L / 316L). Its main properties are : high ductility, easy weldability and improved corrosion resistance. The main application are chemical tankers, chemical industries and pulp and paper industry. Information provided by manufacturer. |
EURONORM 1.4438 X2CrNiMo18.15.4, AFNOR Z3 CND 19-15-04, DIN W 1.4438, ASTM A240 TP 317L, UNS S31703 |