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INTERNATIONAL CLASSIFICATIONS |
AWS/ASME A 5.9 ER 347L
EN 12072: W 19 9 Nb
FEATURES & APPLICATIONS |
6347 TIG rod is designed for joining stabilized stainless 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 347 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
|
C |
Mn |
Si |
S |
P |
Nb |
Cr |
Ni |
Mo |
Cu |
Fe |
|
.03 |
1.5 |
.45 |
.01 |
.02 |
.5 |
19.13 |
9.9 |
.2 |
.1 |
Bal. |
Typical Mechanical Properties |
Undiluted Weld Metal Maximum Value Up to:
Tensile Strength: 96,000 PSI (660 MPa)
Yield Strength:: 70,000 PSI (490 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 Amperage |
60 |
80 |
|
Maximum Amperage |
100 |
120 |
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/ Rods |
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 |
100% |
|
1/8 (3.25) |
18″ (450) |
2.0oz (58g) |
8 (18) |
18 (40) |
100 |
100% |
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 |