SPW Product Catalogue 2019

GAS AND TIG CONSUMABLES
COMWELD MILD STEEL
As the name implies, Comweld Mild Steel is an uncoated mild steel filler rod
suitable for the oxy-acetylene (fusion) fillet and butt welding of carbon steel and
wrought iron. Comweld Mild Steel produces a free flowing weld pool without the
need for an externally applied flux. A neutral to slightly reducing flame setting is
recommended for use with Comweld Mild Steel. Resultant weld deposits are ductile
and in the 350 - 400 MPa tensile class. The low deoxidant level of Comweld Mild
Steel makes it unsuitable for Gas Tungsten Arc (TIG) welding applications.
Classifications:
AS 1167.2:
RG.
AWS/ASME-SFA A5.2: R45.
Features:
Black Annealed, Low Carbon Steel Rod for Oxy-Acetylene Welding.
Recommended for Gas Welding of Steels and Wrought Irons.
Not Suitable for Gas Tungsten Arc Welding.
COMWELD HIGH TEST
Joining Process:
Gas (Fusion) Welding only.
Typical Weld Deposit Properties:
All Weld Metal Tensile Strength
370 MPa.
Elongation 30%
Approximate Melting Point
1490°C.
Weld Metal Density 7.85 gms / cm 3
Typical Rod Analysis:
C: 0.07% Mn: 0.50% Si: 0.008%
S: 0.008% P: 0.011% Fe: Balance
Packaging Data:
Rod Size (mm) Pack Weight/Type Approx Rods/kg Part No
1.6 x 500 1kg Handipack 130 322045
1.6 x 1,000 5kg Pack 64 321334
2.4 x 750 5kg Pack 29 321337
3.2 x 750 5kg Pack 16 321339
5
Comweld High Test is a copper coated steel filler rod suitable for the oxy-acetylene
(fusion) welding and Gas Tungsten Arc (TIG) welding of carbon steels.
Comweld High Test produces a free flowing weld pool when gas welding, without
the need for an externally applied flux. Resultant weld deposits are ductile and
in the 400 - 450 MPa tensile class. A neutral to slightly reducing flame setting is
recommended for use with Comweld High Test which is used extensively for the
gas welding of pressure pipelines where higher joint strengths are required.
The nominal 1.2% Manganese and 0.2% Silicon deoxidant levels of Comweld High
Test make it suitable for Gas Tungsten Arc (TIG) welding applications.
Procedure for Gas (Oxy-acetylene) Welding:
1. Thoroughly clean all areas to be welded.
2. Adjust flame to a neutral setting.
3. Preheat thicker joint sections.
4. Heat a small area of the joint until molten and progressively add Comweld
High Test filler rod to the weld pool. Ensure the rod is melted by the molten
weld pool and not the flame.
5. Allow completed joint to cool and remove residual scale by grinding, or wire
brushing.
Procedure for Gas Tungsten Arc (TIG) Welding:
1. Thoroughly clean all areas to be joined.
2. For the butt welding of thick plates, bevel edges to 60°-70° included angle.
3. Use a Thoriated or Ceriated tungsten electrode, ground to a sharp needle point
making sure the grinding lines run with the length (longitudinally) of the
electrode’s axis. The length of the needle point should be approximately 2-3 x
the diameter of the tungsten electrode.
4. Use Direct Current Electrode Negative (DC-) and Welding Grade Argon.
5. Preheat thick sections prior to welding. Heat a spot on the base metal until it
shows signs of melting and progressively add the filler rod to the weld pool.
Classifications:
AS 1167.2: R1.
AWS/ASME-SFA A5.2: R60.
Features:
Copper Coated, Steel Filler Rod for Gas and Gas Tungsten Arc (TIG) Welding.
Higher Strength (400-450MPa) Oxy-Acetylene and TIG Welding of Steels.
Joining Process:
Gas (Fusion) and Gas Tungsten Arc (TIG) welding.
Typical Weld Deposit Properties:
All Weld Metal Tensile Strength
425 MPa.
Elongation 28%
Approximate Melting Point
1490°C.
Weld Metal Density 7.85 gms / cm 3
Typical Rod Analysis:
C: 0.12% Mn: 1.17% Si: 0.25%
S: 0.009% P: 0.015% Fe: Balance
Packaging Data:
Rod Size (mm) Pack Weight/Type Approx Rods/kg Part No
1.6 x 750 5kg Pack 84 321357
2.4 x 750 5kg Pack 34 321360
3.2 x 750 5kg Pack 21 321362
CONSUMABLES
Copyright. Produced with the permission of CIGWELD
1300 WELDER (1300 935 337)
437