Alloy 347 and demonstrates improved high temperature and creep properties. Standard: ASTM/ASME: UNS S34700 / S34709 EURONORM: FeMi35Cr20Cu4Mo2 DIN: 2.4660 Grade Chemical Component % C Cr Ni Mn P S Mo Si Cu N Other 347 0Cr18Ni11Nb â¤0.08 17.00-19.00 9.00-13.00 â¤2.00 â¤0.035 â¤0.030 - â¤1.00 - - Nbâ¥10*C% 347H * 0.04-0.1 17.00-19.00 9.00-13.00 â¤2.00 â¤0.035 â¤0.030 - â¤1.00 - - Nbâ¥10*C%
Alloy 347 and demonstrates improved high temperature and creep properties.