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| INTERNATIONAL CLASSIFICATIONS |
AWS/ASME A 5.9 ER 308L
EN 12072: W 19 9 L
| FEATURES & APPLICATIONS |
6308 TIG rod is an extremely low carbon stainless steel Alloy with molybdenum added to provide superior corrosion resistance. 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 308L 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 316L as item number 6316.
- 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
| C | Mn | Si | S | P | Cr | Ni | Mo | Cu | Fe |
| .02 | 1.71 | .35 | .005 | .02 | 20.4 | 10 | .60 | .05 | bal |
| Typical Mechanical Properties |
Undiluted Weld Metal Maximum Value Up to:
Tensile Strength: 77,500 PSI (530 MPa)
Yield Strength: 54,000 PSI (370 MPa)
Elongation: 38%
Impact Energy: 35J: -157°F (-105°C)
Hardness: Brinell 205, Rockwell B94
| Welding Current & Instructions |
Recommended Current: DC Straight (-)
Recommended Amperage Settings:
| Diameter (mm) | 3/32 (2.5) | 1/8 (3.25) |
| Minimum Amperage | 60 | 80 |
| Maximum Amperage | 100 | 120 |
Welding Techniques: Clean weld surface carefully to remove all scale and corrpsion. 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/Rod | Rods per lb (kg) of Weldmetal | Arc Time of Deposition min/lb (kg) | Amperage Setting | Recovery Rate |
| 3/32 (2.5) | 18″ (450) | 1.5oz (44g) | 10 (22) | 21 (46) | 80 | 93% |
| 1/8 (3.25) | 18″ (450) | 2.0oz (58g) | 8 (18) | 18 (40) | 100 | 93% |
| APPROXIMATE ELECTRODE PACKAGING & DIMENSIONS |
| Diameter (mm) | 3/32 (2.5) | 1/8 (3.25) |
| Length (mm) | 18″ (450) | 18″ (450) |
| Electrodes / lb | 14 | 10 |
| Electrodes / kg | 31 | 22 |