FCW Sub 309LMo-G
Description & applications
DESCRIPTION
- Metal cored stainless steel wire for gas shielded arc welding
- 24% chromium - 13% nickel - low carbon deposit
- Enhanced productivity, improved weldability, better wetting properties compared to solid wires
- Excellent weld metal quality and X-ray soundness
APPLICATIONS
- Welding stainless steels of similar composition or ferritic stainless steels.
- Joining stainless steels to mild and low-alloyed steels.
- Rebuilding and buffering before cladding or hardfacing.
- Maintenance on « hard-to-weld steels ».
Examples
Dissimilar welds between stainless CrNiMo stainless steels and mild or low alloyed CMn steels, for service temperatures up to 350°C. Tube S 309LMo-G has superior resistance to dilution when compared to 309L
deposits because of its higher alloy and ferrite content. Compared to the AWS 312 weldments it benefits from an improved strength/ ductility balance.
Classification
| ASME IIC SFA 5.9 / AWS A 5.9 | EN ISO 17633-A | EN ISO 17633-B | Equivalent Material number | ASME IX Qualification |
|---|---|---|---|---|
| EC309LMo | T 23 12 2 L M M 3 | TS309LMo-MG0 | 1.4459 | QW432 F-N° 6 QW442 A-N° 8 |
Typical weld metal composition (%)
| C | Mn | Si | Cr | Ni | Mo | S | P |
|---|---|---|---|---|---|---|---|
| 0.02 | 1.40 | 0.55 | 24.0 | 13.0 | 2.80 | 0.008 | 0.015 |
All weld metal mechanical properties
| Rm (MPa) | Rp0.2% (MPa) | A5 (%) | KCV (J) |
|---|---|---|---|
| 760 | 590 | 32 | + 20°C : 60 |
Shielding gas
| EN ISO 14175 | M13 Ar + 0.5 % < O2 ≤ 3.0 with or without Helium |
|---|
Operating conditions
| Current type | Gas flow rate | Stick out | Recovery |
|---|---|---|---|
| DC (+) / pulsed | 10 - 20 l/min. | 12 - 25 mm | 98 % |
Welding positions
EN ISO 6947: PA, PB.
ASME IX: 1G, 1F, 2F.
FCW Sub 309LMo-G is primarily used in the flat and horizontal-vertical positions. However, welds in other positions are also possible using the short-circuiting or pulsed arc modes of transfer.
Packings & Diameters
| Diameters [mm] | 1.2 mm - 1.6 mm |
|---|---|
| Packing(s) | Spool |
| Weight [Kg] | 15 kg |
| Description | - |