FCW S 309LMo
Description & applications
• Rutile flux cored stainless steel wire for gas shielded metal arc welding
• 24% chromium - 13% nickel - 3% molybdenum - low carbon deposit
• Exceptional resistance to moisture pick up
• Attractive bead appearance, automatic slag release, very good penetration and high productivity
• Excellent X-ray soundness
• Maximum performances in the horizontal and downhand positions
• Welded with classical economical Ar-CO2 mixtures or CO2
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. FCW S 309LMo 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
| AWS A 5.22 | EN ISO 17633-A | Werkstoff Nr. | ASME IX Qualification |
|---|---|---|---|
| E309LMoT0-4 - E309LMoT0-1 | T 23 12 2 L R M 3 - T 23 12 2 L R C 3 | 1.4459 | QW432 F-N° 6 QW442 A-N° 8 |
Typical weld metal composition (%)
| C | Mn | Si | Cr | Ni | Mo | S | P |
|---|---|---|---|---|---|---|---|
| 0.03 | 1.4 | 0.8 | 23.5 | 12.5 | 2.8 | 0.008 | 0.02 |
All weld metal mechanical properties
| Rm (MPa) | Rp0.2 (MPa) | A5 (%) | KV |
|---|---|---|---|
| 760 | 610 | 27 | 20°C: 50 J |
Shielding gas
| M20 (Ar + 5 - ≤ 15% CO2), M21 (Ar + 15 - 25% CO2) gas mixtures, or C1 (CO2) according to EN ISO 14175 |
Operating conditions
| Diameter [mm] | Current type | Intensity [A] | Voltage [V] | Stick-out [mm] | Gas flow |
|---|---|---|---|---|---|
| 1.2 | DC (+) | 100 - 280 | 23-33 | 10 - 25 | 12 - 20 l/min. |
| 1.6 | DC (+) | 150-400 | 23-35 | 10 - 25 | 12 - 20 l/min. |
Welding positions
EN ISO 6947:PA, PB.
ASME IX:1G, 1F, 2F.
Packings & Diameters
| Diameters [mm] | 1.2 | 1.2 - 1.6 |
|---|---|---|
| Packing(s) | Spool S200 | Spool BS300 |
| Weight [Kg] | 5 | 15 |
| Description | - | - |