ER309LMo SS MIG WIRE | FEATURES
- ER309LMo is the same as an ER309Mo, except for a lower maximum carbon content (0.03%).
- Low-carbon contents in stainless steels reduce the possibility of chromium carbide precipitation and thereby increase weld metal resistance to intergranular corrosion.
- The ER309LMo is used in the same type of applications as the ER309Mo, but where excessive pickup of carbon from dilution by the base metal, where intergranular corrosion from carbide precipitation, or both are factors to be considered in the selection of the filler metal.
- Welding process of ER309LMo SS MIG wire applied to MIG(Metal Inert Gas Welding) or GMAW(Gas Metal Arc Welding).
SPECIFICATION CONFORMANCES
AWS: A5.9/A5.9M: ER309LMo
UNS Number: S30986
BS EN ISO 14343A: 23 12 2 L
WELDING POSITIONS
F,V,OH,H
TYPICAL APPLICATION
- ER309LMo SS MIG wire is used for overlay welding of unalloyed and low alloyed steels and for welding of dissimilar steels such as 316L to unalloyed and low alloyed steels when Mo is essential.
- In multilayer overlays, the low carbon ER309LMo is usually needed for the first layer in order to achieve low carbon contents in successive layers with filler metals such as ER316L or ER317L.
- Surfacing of base metals to improve their resistance to corrosion
SHIELDING GAS
98% Argon+2% O2
WIRE COMPOSITION – As Required As per AWS A5.9/A5.9M
| Alloy Type | %C | %Cr | %Ni | %Mo | %Mn | %Si | %P | %S | %Cu | Other |
|---|---|---|---|---|---|---|---|---|---|---|
| ER309LMo | 0.03max | 23.0-25.0 | 12.0-14.0 | 2.0-3.0 | 1.0-2.5 | 0.30-0.65 | 0.03max | 0.03max | 0.75max | – |
| Typical Results | 0.017 | 24.2 | 12.3 | 2.42 | 1.7 | 0.53 | 0.013 | 0.016 | 0.43 | – |
DIAMETER
| INCH | 0.023” | 0.030” | 0.035” | 0.040” | 0.045” | 0.062” |
|---|---|---|---|---|---|---|
| MM | 0.6 | 0.8 | 0.9 | 1.0 | 1.2 | 1.6 |
Standard Package Dimensions and Weights
| Product | Spool Diameter(in) | Spool Diameter(mm) | Nomimal Weight(lbs) | Nominal Weight(kg) |
|---|---|---|---|---|
| Spools | 4 | 100 | 1-1/2, 2-1/2 | 0.7, 1.1 |
| 8 | 200 | 10 | 4.5 | |
| 12 | 300 | 25, 33 | 11.4, 15 | |
| 14 | 350 | 50 | 22.8 |
*Net weights shall be within ±10% of the nominal weight.
TYPICAL MECHANICAL PROPERTIES (As Welded)
| AWS No. | Tensile Strength, min(ksi) | Tensile Strength, min(MPa) | Elongation, min(%) | Heat Treatment |
|---|---|---|---|---|
| ER309LMo | 80 | 550 | 30 | None |
Available Diameters MIG with Operating Range in Amps
| Diameter(inch) | Diameter(mm) | Amps(A) |
|---|---|---|
| 0.023” | 0.6 | 35 – 70 |
| 0.030” | 0.8 | 50 – 100 |
| 0.035” | 0.9 | 160 – 210 |
| 0.045” | 1.2 | 180 – 250 |
MIG SPOOL DIMENSIONS
| Dimensions of 4, 8 and 12 in [100, 200 and 300 mm] Standard Spools | |||||||||
| Type | Spools Details | 4 in [100mm] | 8 in [200mm] | 12 in [300mm] | 14 in [350mm] | ||||
| inch | mm | inch | mm | inch | mm | inch | mm | ||
| A | Diameter, max | 4.0 | 102 | 8.0 | 203 | 12 | 305 | 14 | 355 |
| B | Width Tolerance | 1.75 ±0.03 |
46 +0，-2 |
2.16 ±0.03 |
56 +0，-3 |
4.0 ±0.06 |
103 +0,-3 |
4.0 ±0.06 |
103 +0,-3 |
| C | Diameter Tolerance | 0.63 +0.01.-0 |
16 +1,-0 |
2.03 +0.06,-0 |
50.5 +2.5,-0 |
2.03 +0.06,-0 |
50.5 +2.5,-0 |
2.03 +0.06,-0 |
50.5 +2.5,-0 |
| D | Diameter between Axes Tolerance | — — |
— — |
1.75 ±0.02 |
44.5 ±0.5 |
1.75 ±0.02 |
44.5 ±0.5 |
1.75 ±0.02 |
44.5 ±0.5 |
| E | Diameter Tolerance | — — |
— — |
0.44 +0,-0.06 |
10 +1,-0 |
0.44 +0,-0.06 |
10 +1,-0 |
0.44 +0,-0.06 |
10 +1,-0 |