Specifications
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)
Description ERCuNi
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. Note: ERCuNi can be used for overlaying
on steel, however a barrier layer of 61
should be used for the first pass when MIG welding.
Chemical Composition
(%max., unless shown as range or min.)
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