6309 – 309L Flux Coated TiG

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INTERNATIONAL CLASSIFICATIONS

AWS/ASME A 5.9 ER 309L

EN 12072: W 23 12 L

FEATURES & APPLICATIONS

6309 Tig rod is an extremely low carbon stainless steel alloy with a ferrite content suitable for welding dissimilar steels. It is especially well suited for welding stainless steel pipe wherever a backing ring or a purge gas is required in order to provide impurity free weldments. This is necessary during stainless steel pipe welding in the chemical and petro-chemical industries.

  • A special 309L Tig alloy coated with our unique Vari-Flow fluxing system.
  • A very special Tig wire that eliminates the expense and wasted time associated with purging pipes with inert backing gasses.
  • Easy to handle 18 inch (450mm) length works in multiple positions without having to bend the wire.
  • Can be ordered in grade 308L as item number 6308.
  • Any other grade of stainless can be manufactured in 100 pound (45kg) per diameter minimum quantities.
All Weld Metal Analysis (Typical Weight %)

Microstructure: Austenite with 3-9% ferrite. Typical ferrite number is 6.

Flux Color: Yellow

CMnSiSPCrNiMoCuFe
.0151.9.4.01.0223.213.8.1.08Bal.
Typical Mechanical Properties

Undiluted Weld Metal Maximum Value Up to:

Tensile Strength: 90,000 PSI (620 MPa)

Yield Strength: 66,000 PSI (420 MPa)

Elongation: 42%

Impact Energy: 40J: -157°F (-105°C)

Hardness: Brinell 209, Rockwell B96

Welding Current & Instructions

Recommended Current: DC Straight (-)

Recommended Amperage Settings:

Diameter (mm)3/32 (2.5)1/8 (3.25)
Minimum Amperage6080
Maximum Amperage100120

Welding Techniques: Clean weld surface carefully to remove all scale and corrosion. Sections over 3mm should be beveled to permit complete penetration. Clean joint surface using a stainless steel brush. Use DC – (straight polarity), 2% thoriated tungsten electrode.

Welding Positions: Flat, Horizontal, Vertical up

Deposition Rates:

Diameter (mm)Length (mm)Weldmetal/ RodsRods per lb (kg) of WeldmetalArc Time of Deposition min/lb (kg)Amperage SettingRecovery Rate
3/32 (2.5)18″ (450)1.5oz (44g)10 (22)21 (46)80100%
1/8 (3.25)18″ (450)2.0oz (58g)8 (18)18 (40)100100%
APPROXIMATE ELECTRODE PACKAGING & DIMENSIONS
Diameter (mm)3/32 (2.5)1/8 (3.25)
Length (mm)18″ (450)18″ (450)
Electrodes / lb1410
Electrodes / kg3122