Classification: ER309LMo (AWS A5.9)
Solid welding wire · Oerlikon Welding
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Key features
- The weld metal has a delta-ferrite content of ~15% resulting in a high resistance to hot cracking.
- Also used for buffer layers prior to surfacing, where the Mo is a required alloying element.
- Used for dissimilar joints such as carbon and duplex.
Standards and classifications
| AWS A5.9 | ER309LMo |
|---|---|
| EN ISO 14343-A | G 23 12 2 L |
Chemical composition
(Weight %), typical, wire
| C | Mn | Si | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|
| 0.012 | 1.44 | 0.35 | 0.019 | 0.002 | 21.5 | 14.5 | 2.6 |
Mechanical properties
Typical, all weld metal
| Shielding gas | Condition | Yield strength (MPa) | Tensile strength (MPa) | Elongation (%) | Impact ISO-V (J) |
|---|---|---|---|---|---|
| +20°C | |||||
| M13 | AW | ≥350 | ≥550 | ≥30 | ≥55 |
* AW = As welded
Shielding gas
| Designation (EN ISO 14175) | Type | Composition |
|---|---|---|
| M12 | Mixed gas | Ar+ 0.5-5% CO₂ |
| M13 | Mixed gas | Ar+ 0.5-3% O₂ |
Versions and packaging
| Item number | Diameter (mm) | Net weight (kg) |
|---|---|---|
| W000283100 | 1.0 | 15.0 |
| W000283101 | 1.2 | 15.0 |
Availability of individual item numbers is confirmed with the quotation.
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