Saffire 18/8 - 308L BS 2901 : Part 2 : 1990 308S92 AWS A/SFA 8-9-93 ER308L. Saffire Stainless 18/8/3 Mo - 316L - TIG welding molybdenum bearing austenitic stainless steels. Saffire 18/8 Nb -347 BS 2901 : Part 2 :1990 347S96 AWS A/SFA 5-9-82 ER.