NON FERROUS (Cu Alloys)

NEXA BRONZE

Welding Electrode for Copper and Bronze

AWS A/SFA 5.6 ECuSn-A
NEXA BRONZE

Applications

  • Welding of Copper or Bronze to steel
  • Impeller blades, Valve seats
  • Brass, Galvanized iron, Malleable Iron
  • Ship propellers, Bearings, Bushing
  • Cast iron welding where colour match is not necessary
  • Joining dissimilar metals such as mild steel to phosphorus bronze and brass

Characteristics

  • Copper-Tin electrode
  • Due to high heat conductivity of Cu alloys, preheat of 260-370°C is recommended for heavy sections
  • Typical 93% Cu-6% Sn deposit
  • No preheat is required on thin sections and ferrous base material

Chemical Composition

Cu P Sn Fe
>93 0.05-0.35 4-6 0.25

Mechanical Properties

UTS (MPa) EL%
>240 >20

Welding Currents (DCEP)

2.5 x 350 mm 3.15 x 350 mm 4.0 x 350 mm
40-70 70-100 110-140

Product Specifications

Current Type DCEP
Welding Positions
Position
Position
Position
Packaging
  • Packing of 10 kg box containing 10 plastic cartons of 1 kg each.
  • Packing of 10 kg box containing 5 vacuum packed cartons of 2 kg each.
Conditions (Pre-Drying)
  • 250-300°C for minimum 1 hr.