Classification: ER309LMo* (AWS A5.9)
TIG rod · 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 | W 23 12 2 L * Nearest classification |
Chemical composition
(Weight %), typical, wire
| C | Mn | Si | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|
| 0.020 | 1.6 | 0.45 | ≤0.025 | ≤0.020 | 22 | 15 | 2.7 |
Mechanical properties
Typical, all weld metal
| Shielding gas | Condition | Yield strength (MPa) | Tensile strength (MPa) | Elongation (%) | Impact ISO-V (J) |
|---|---|---|---|---|---|
| +20°C | |||||
| I1 | AW | ≥350 | ≥550 | ≥30 | ≥55 |
* AW = As welded
Shielding gas
| Designation (EN ISO 14175) | Type | Composition |
|---|---|---|
| I1 | Inert gas | Ar (100%) |
Versions and packaging
| Item number | Diameter (mm) | Net weight (kg) |
|---|---|---|
| W000283486 | 1.6 | 5.0 |
| W000283487 | 2.0 | 5.0 |
| W000283488 | 2.4 | 5.0 |
Availability of individual item numbers is confirmed with the quotation.
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