Dây hàn W49-VD

Liên hệ

  • Welding low-carbon MAG and MIG steel under the load up to 550 Mpa
  • Suitable for manufacture technology of autos, motorbikes, ships, etc.
  • Welded joints are ductile under pressure at -200
  • High welding capacity, possibly weld at all positions
  • There are two kinds including small coil of 15 [20] kg and basket of 250[300]kg.

Applied standards: 

  • ASME/AWS A5.18 ER70S – 6
  • EN 440GrSi1
  • JIS: YGW12

Characteristics – applications: 

  • W49 – VDis the copper-plated welding wire with cover gas of COor admixture of Ar – CO2. Used for semi-automatic or automatic welding machines. The welded joints are intensively penetrated and ductile under pressure at -200
  • Suitable for welding low-carbon and low-alloy steel under 490~ 550 Mpa load such as manufacture technology of autos, motorbikes, ships, pressure structures, etc.
  • Welding capacity higher than the use of electrodes or TIG welding. Possibly welding at all positions.

Chemical composition (%):

C Mn Si P S Cu
Required 0.06~0.15 1.4~1.85 0.8~1.1 ≤ 0.025 ≤0.03 ≤0.5
Obtained 0.07 1.5 0.9 0.015 0.012 0.24

Mechanical property of weld metal:

Yield strength
(Mpa)
Tensile strength
(Mpa)
Elongation
(%)
Impact value
(J)
Bending strength
Required ≥ 400 ≥ 490 ≥ 22 -29 0C: ≥ 27 Not required
Obtained 430 520 29 -200C: 120 1500

Instructions for use:

  • Clean oil, grease and dust before welding
  • Process welding edges as regulated
  • Select appropriate welding current and voltage to avoid possible defects
  • Keep a 5~15 mm distance from the object to be welded to air diffuser
  • Welding gas must reach standards without mixing with steam, oxygen, etc.
  • Ventilate the welding compartment to avoid CO2 asphyxia
  • Shield the welding area to avoid O2to approach solder bath for possible fires or explosions

Size, specification and used current:

Diameter Ø 0.8 Ø 0.9 Ø 1.0 Ø 1.2 Ø 1.6
Welding current (A) Flat welding 50~150 80~200 100~250 150~300 200~450
Vertical and bare welding 50~100 60~150 80~200 120~250 150~300
Welding potential (V) 20~21 20~22 22~24 23~25 25~28
Specification (kg) Coil 15[20] 15[20] 15[20] 15 [20] 15[20]
Basket 250[300] 250[300] 250[300] 250[300] 250[300]

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