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Copperfil 70-30 (S Cuni 30)

Copperfil 70-30 is a solid MIG-MAG wire designed for welding copper-nickel alloys, offering excellent bead appearance and corrosion resistance. It meets AWS A5.7 and EN 14640 classifications, with typical all-weld metal properties including a yield strength of 250 N/mm2 and tensile strength of 345 N/mm2. The wire should be stored dry and is compatible with DC+ welding positions.

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34 views1 page

Copperfil 70-30 (S Cuni 30)

Copperfil 70-30 is a solid MIG-MAG wire designed for welding copper-nickel alloys, offering excellent bead appearance and corrosion resistance. It meets AWS A5.7 and EN 14640 classifications, with typical all-weld metal properties including a yield strength of 250 N/mm2 and tensile strength of 345 N/mm2. The wire should be stored dry and is compatible with DC+ welding positions.

Uploaded by

brunizza
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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COPPERFIL 70-30

MIG-MAG Wires
Nickel and Copper alloys
Copperfil 70-30 is a solid wire suitable for welding all copper-nickel alloys such as 70/30 - 80/20 - 90/10. Good bead
appearance and excellent weld deposit properties. Excellent corrosion resistance in saline solutions.

Classification Approvals Grades


AWS A5.7: ER CuNi (CuNi30)
EN 14640: S Cu 7158

Analysis of all-weld metal (Typical values in %)


C Mn Si P S Cr Ni Mo Nb Fe Cu Sn
- 1 0.20  0.020 - - 30 - - 0.50 Rem -

All-weld metal Mechanical Properties


Yield Tensile Elongation Impact Energy
Heat Treatment Strength Strength ISO - V (J) Hardness
A5 (%)
N/mm2 N/mm2
As Welded  250  345  20 - -
Gas test: Acc. To EN 439: M13(Cargal1)

Shielding Gas: Acc. To EN 439: M13(Cargal1)

Materials
2.0872 (CuNi10Fe1Mn9); 2.0882 (CuNi30Mn1Fe); 2.0837
UNS C70600; UNS C71500

Storage Current condition and welding position


Keep dry and avoid condensation. DC+

PA PB PC PF PE PF2

Packaging data: K300 Kg. 16


Diameters 1,2

247

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