SHIELD METAL ARC WELDING (SMAW)

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N-CuSnC (DC)

Specification
AWS Specification: AWS A5.6 ECuSn-C
JIS Specification: N/A
Other Specification: DIN 1733: S-Cu Sn 7
Description
  • N-CuSnC (DC) is a special tin-bronze electrode for joining and surfacing on DC (+)
  • Produces a smooth arc that results in dense porosity free deposits in all positions
  • Welds a beautifully and color matches with bronze
TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL DEPOSITS (%):

Cu

Fe

Sn

P

Bal.

0.17

7.80

0.11

 

TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL DEPOSITS:
Tensile Strength
N/mm2 (KSI)
 
Elongation
%
 
Hardness HB

390 (57)

30

90 - 100

 

SIZE AND RECOMMENDED CURRENT RANGE: DC (+)

DIAMETER (mm)

3.2

4.0

5.0

LENGTH (mm)

350

350

350

Current Amp

90 - 130

120 - 160

150 - 220

Welding Positions: FLAT, FILLET, VERTICAL UP, HORIZONTAL, OVERHEAD
Approvals: N/A

NOTE:

The information contained or otherwise referenced herein is presented only as “typical” without guarantee or warranty, and Industrial Welding Corporation expressly disclaims any liability incurred from any reliance thereon. Typical data and test results for mechanical properties, deposit, or electrode composition and other properties were obtained from a weld produced and tested according to prescribed standards and should not be assumed to be the expected results in a particular application or weldment. Actual results will vary depending on many factors, including, but not limited to, weld procedure, plate chemistry and temperature, weldment design, and fabrication methods. Users are cautioned to confirm by qualification testing, or other appropriate means, the suitability of any welding consumable and procedure before use in the intended application.

  • Suitable for welding a wide range of bronzes, brass and copper-alloys
  • Repair and surfacing of gearwheels, bearings, pumps, impellers, turbines, valve bodies, and defects in new castings
  • For overlaying a bearing surface on steel, repair of broken iron castings, cracked engine water jackets, and cylinder heads
  •  
  • Clean parent metal of rust, paint, seals, oil, grease, and moisture to ensure porosity free welds
  • Because copper has high heat conductivity, preheating and interpass temperature are required for heavy sections (5mm & more)
  • For phosphor bronze and gun metal: 150 ? 200ºC
  • For brass: 250 ? 300ºC
  • No preheating is required sections that are less than 5.0mm on ferrous based materials
  • Do not use too much weaving
  • The bead width should be kept within 3x of rod diameter
  • Apply hot peening on every bead because the structure of deposited metal is rough at as welded condition
  • Hot peening is effective for improving mechanical properties

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