Alloy 67 (ERCuNi)
AWS A5.7 Class ERCuNi
MIL-E-21562 Type MIL-RN67, MIL EN67
ASME SFA5.7, Class ERCuNi
QQ-R-571C MIL-R-19631B Type MIL-RcuNi
MIL-1-23413 (MIL-67)
Washington Alloy 67 is a copper-nickel filler metal used for MIG, TIG, oxyacetylene and submerged arc welding of wrought or cast 70/30, 80/20 and 90/10 copper-nickel to themselves or to each other. Excellent for joining copper-nickel alloys to nickel-copper Alloy 400, R-405, K-500 or high nickel alloy 200.
Applications:
Washington Alloy 67 can be used for overlaying on steel, however, a barrier layer of Washington Alloy 61 should be used for the first pass when MIG welding. Washington Alloy 60 should be used for the first pass when submerged arc welding.
Supporting Documentation: