Nearest available electrode could be monel type with 70 Cu - 30 Ni.
GMAW followed by SMAW is suitable GTAW.
ECuNi- Coated Electrode
Copper-nickel alloys and selected bronzes to themselves and to Alloy
400 or Alloy 200
Electrodes of the Copper-nickel classification are used for shielded metal
arc welding or wrought or cast 70/30, 80/20 and 90/10 copper-nickel alloys
to themselves or to each other. They also are used for welding the clad side
of copper-nickel clad steel. Preheating is generally not necessary.
ERCuNi - Filler wire.
Copper-nickel alloys and selected bronzes to themselves and to Alloy
400 or Alloy 200.
In Copper-nickel filler metals, the nickel addition strengthens the weld metal
and improves the corrosion resistance, particularly against salt water. The weld
metal has good hot and cold ductility. Copper-nickel filler metals are used for
welding most copper-nickel alloys. When using the GTAW or GMAW processes,
preheating is not required. Welding is done in all positions
Sridhar.
From: Yogesh Pawar <yogeshpawar5@gmail.com>
To: materials-welding@googlegroups.com
Sent: Thursday, 25 December 2014 12:19 AM
Subject: [MW:22633] Copper alloy electrodes
Dear all,
Please advice Electrodes details for Copper alloy Materails
Material SB171 C70600 (90Cu-10Ni)
P.No.34 to P.No.34
Thk-40mm
Which welding process is better SMAW or GTAW
Thanks & Regards
Yogesh P.
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