C518 Phosphor Bronze A Electrode


INTRODUCTION

Aufhauser Phosphor Bronze A Electrode is useful for welding copper tin bronzes (Cu-Sn 6-8%) and some brasses (Cu-Zn). Also suitable for joining wrought copper-tin bronzes and brasses to cast iron and carbon steel. The PhosBronze A Electrode is recommended for repairing wrought bronzes (Cu-Sn); for surfacing on brasses, steels, and cast iron. The deposit is resistant to salt water corrosion. This electrode is especially designed to weld with the alternative current, but it can be used either on DC positive or negative. PhosBronze A Electrodes may be used to weld copper if the resultant weld metal has adequate electrical conductivity and corrosion resistance for the specific application. Postweld heat treatment is desirable for maximum ductility, especially if the weld metal is cold worked.

APPLICATIONS

  • Joining base metals of similar composition
  • Construction of equipment for the chemical industry and petrochemical industry
  • Naval constructions and installations for sea water desalination, repair works

GENERAL INFORMATION

Chemical Composition
Copper Tin Aluminum Iron Lead Phosphorus Other*
Remainder 4.0-6.0 0.01 0.25 0.02 0.05-0.35 0.50

Note: Copper contains Silver. All values are maximum percentage, unless shown in range. * Total Other elements include Manganese, Nickel, Silicon, Zinc.

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
Machinability Excellent
Current Used AC or DC reverse polarity
Color Red bronze
Tensile Strength 65,000 psi, max.
Elongation in 4" 20%
Brinell Hardness 70-85
 
SPECIFICATIONS MEET or EXCEED
AWS A5.6 Class ECuSn-A
ASME SFA5.6 Class ECuSn-A
 
STANDARD SIZES AND DIAMETERS
Size Lengths Amperage
3/32 12" 70-90
1/8 14" 90-110
5/32 14" 110-130
3/16 14" 110-130

 

COMMON BASE METALS
UNS DIN
C 50700 CuSn2
C 51100 CuSn4
C 51900 CuSn6
C 52100 CuSn8
  CuSn6Zn
C 52400 G-CuSn10

 

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    Aufhauser Corporation
    39 West Mall, Plainview, NY 11803 USA

  • Phone: +1-212-246-0205

  • Email: sales @ brazing.com

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