OK Tigrod 309L is used for welding buffer layers on CMn steels and for welding dissimilar joints. When using the wire for buffer layers and dissimilar joints, it is necessary to control the dilution of the weld.
OK Tigrod 309L is a bare, corrosion-resistant, chromium-nickel welding rods for welding the 24% Cr, 13% Ni alloyed types of steel. OK Tigrod 309L has a good general corrosion resistance. When used for joining dissimilar materials the corrosion resistance is of secondary importance.

| Yield Strength | 86 ksi, 590 MPa |
|---|---|
| Tensile Strength | 62 ksi, 430 MPa |
| Elongation in 2" | 40 % |
| Typical Charpy V-Notch Impact Properties | |
| Testing Temperature -76°F (-60°C) | 96 ft.-lbs, 130 J |
| Testing Temperature -166°F (-110°C) | 66 ft.-lbs, 90 J |
| Testing Temperature 68ºF (20ºC) | 118 ft.-lbs., 160 J |
| Typical wire analysis | |
| C | <0.03 % |
| Mn | 1.8 % |
| Si | 0.5 % |
| Cr | 24 % |
| Ni | 13 % |
| Mo | <0.3 % |
| Cu | <0.3 % |
| Part No. | Model / Product Description | UPC |
|---|---|---|
| 165316R15A | ES OK ER309L 1/16X39X11CT E2 | 000000000000 |
| 165324R15A | ES OK ER309L 3/32X39X11CT E2 | 000000000000 |
| 165332R15A | ES OK ER309L 1/8X39X11CT E2 | 000000000000 |
| 165340R15A | ES OK ER309L 5/32X39X11CT E2 | 000000000000 |
All listed prices are in U.S. dollars and represent the Manufacturer's Suggested Retail Price (MSRP) for sale in the United States. Actual selling price will be determined by the Distributor. Prices are subject to change without notice.