| Description: CLC 17-13-5LN (317LNM) is a Nitrogen alloyed austenitic stainless steel with a high Molybdenum addition (=4%). Alloy CLC 17-13-5LN (317LNM) exhibits 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 chloride containing environments than standard grades (CLC17-12-2L / 316L). Nitrogen additions and a low silicon content have a stabilizing effect on austenitic structure reducing, therefore, precipitation of inter-metallic phases during welding. Nitrogen addition also increases the yield strength compared to CLC 18-15-4L (317L). Its main properties are : high ductility, easy weldability and high corrosion resistance. The main applications are chemical and petrochemical applications, pollution control equipments and chemical tankers. Information provided by manufacturer. |
| EURONORM 1.4439 X2CrNiMoN17.13.5, AFNOR Z3CND 18-14 05Az, DIN W 1.4439, ASTM A240 TP 317LNM, UNS S31725, UNS S31726 |
