CopperFil


INTRODUCTION

Aufhauser CopperFil is used for the inert gas welding of copper base alloys. For example: copper-silicon, copper-zinc, and galvanized sheets. May also be welded to steel. This wire is frequently used for joining in artistic foundries (i.e. sculpturing, architectural detailing). The automotive industry has chosen CopperFil over steel wires because of its lower melting point. This lower melting point results in higher travel speeds, better wetting, better gap bridging and even excellent corrosion resistance.

ADVANTAGES

  • Joints are made at lower temperature than in gas or arc welding
  • Minimizes thermal stress and distortion
  • Less susceptibility to cracking
  • Soft and ductile weld deposits
  • Easy machinability
  • Low residual stress
  • High strength fillets
  • Weld metal is Copper-Silicon bronze
  • Excellent corrosion resistance

METALS TO BE BRAZE WELDED

  • Copper base alloys: copper-silicon, copper-zinc
  • Galvanized sheets
  • Steel

APPLICATIONS

  • MIG, TIG and oxyacetylene welding of copper, copper-silicon and copper-zinc base metals to themselves and to steel
  • Surfacing areas subject to corrosion
  • Welding thin steel plates and/or galvanized plates
  • Cladding CuMn, CuSiMn and CuZn alloys
  • Suitable for cladding cast iron and low-alloyed steels

GENERAL INFORMATION

Chemical Composition
Copper Manganese Iron Silicon Phosphorus Others
> 93 0.75 < 0.3 2.8-4.0 < 0.02 0.50

ADDITIONAL INFORMATION

Copper and its alloys require a relatively high heat input with shortened welding time. Higher preheat temperatures and faster welding rates than for steel are necessary.

PHYSICAL and MECHANICAL PROPERTIES
Tensile Strength 50,000 psi, min. (350 N/mm2)
Elongation in 2" 40%
Brinell Hardness 80-100
 
SPECIFICATIONS MEET OR EXCEED
AWS A5.7 ERCuSi-A
DIN 1733: Sg-Cu Si3
EN 14640: S CuSi3Mn1 - S Cu 6560
EN ISO 24373

 

STANDARD SIZES AND DIAMETERS
Size Cast
(12" Spool)
Helix
(12" Spool)
3/32 or 1/8 x 36" rod N/A N/A
0.035" dia. x 30 lb. spl 15-40" < 1"
0.045" dia. x 30 lb. spl 15-40" < 1"
0.062" dia. x 30 lb. spl 15-40" < 1"

 

GMAW (MIG) Parameters (DC Reverse Polarity) Electrode Positive Spray transfer
Wire Diameter Amps Volts Argon (cfh) Wire Feed (ipm)
0.030 130-150 21-23 25 460-500
0.035 145-185 23-25 30 400-440
0.045 195-215 26-28 30 280-310
1/16 260-280 27-30 40 150-210

 

GTAW (TIG) Parameters (DCSP)² Electrode negative or ACHF
Material 2% Thoriated² Filler Wire Size Amps (DC) Amps (AC) Gas Cup Argon (cfh)
1/16" 1/16" 1/16" 70-150 70-150 3/8-1/2 15
3/32"-1/8" 3/32" 3/32" 150-200 140-230 7/16-1/2 15
3/16"-1/2" 1/8" 3/32"-1/8" 230-400 225-320 7/16-1/2 20
1/2"-1" 3/16" 3/16"-1/4" 325-500 290-485 1/2 25

 

COMPLEMENTARY AUFHAUSER PRODUCTS

Today's Silver Price:

Coming soon...

Today's Copper Price

Contact Us

  • Address:
    Aufhauser Corporation
    39 West Mall, Plainview, NY 11803 USA

  • Phone: +1-212-246-0205

  • Email: sales @ brazing.com