Arcaloy 309L-16 is used primarily in the overlay of steel or to join stainless steel to carbon or low alloy steels. Usable on AC or DC current.
Arcaloy 309L-16 is used for welding carbon and low alloy steels to stainless steels. This can be done provided the service temperature does not exceed about 700ºF (315ºC). Post weld heat treatment should only be performed after due consideration.
* This item is subject to Industry Alloy Surcharges

| Yield Stress | 65 ksi, 450 MPa |
|---|---|
| Tensile Strength | 85 ksi, 590 MPa |
| Elongation in 2" | 37 % |
| Typical Undiluted Weld Metal Analysis | |
| C | 0.03 % |
| Mn | 1.8 % |
| Si | 0.45 % |
| Cr | 23.5 % |
| Ni | 13.5 % |
| Mo | 0.3 % |
| Cu | 0.1 % |
| Ferrite | 9 FN |
| Part No. | Model / Product Description | UPC |
|---|---|---|
| 251051108 | AC 309L-16 1/16X9X6#HS | 662303013318 |
| 251051405 | AC 309L-16 1/4X14X10#HS | 662303013325 |
| 251051801 | AC 309L-16 1/8X14X10#HS | 662303013332 |
| 251051801-03 | AC 309L-16 1/8X14X10#HS | 662303055387 |
| 251053104 | AC 309L-16 3/16X14X10#HS | 662303013349 |
| 251053203 | AC 309L-16 3/32X12X10#HS | 662303074616 |
| 251053302 | AC 309L-16 3/32X9X6#HS | 662303013356 |
| 251053302-03 | AC 309L-16 3/32X9X6#HS | 662303055349 |
| 251055307 | AC 309L-16 5/32X14X10#HS | 662303013363 |
| 251055604 | AC 309L-16 5/64X9X6#HS | 662303013370 |
| Diameter | Flat | Vertical | Overhead |
|---|---|---|---|
| 1/16 in., 1.6 mm | 20-35 Volts | 15-25 Volts | 20-30 Volts |
| 5/64 in., 2.0 mm | 30-50 Volts | 25-35 Volts | 30-40 Volts |
| 3/32 in., 2.4 mm | 40-70 (Plus 60-85) Volts | 35-50 (40-60) Volts | 40-60 Volts |
| 1/8 in., 3.2 mm | 65-100 (Plus 90-120) Volts | 55-70 (70-80) Volts | 60-85 Volts |
| 5/32 in., 4.0 mm | 100-145 (Plus 140-165) Volts | 85-100 (80-90) Volts | 95-120 Volts |
| 3/16 in., 4.8 mm | 130-190 (Plus 180-210) Volts | 100-115 Volts | 125-150 Volts |
| 1/4 in., 6.4 mm | 205-290 Volts |
Arcaloy 309L electrodes are used for welding carbon and low alloy steels to stainless steels provided the service temperature does not exceed about 700ºF (370ºC). If the joint is thick, the low alloy side should be buttered with 309L electrodes, PWHT only if required, and the joint made with Arcaloy 316LF5 or Arcaloy 308L electrodes. Arcaloy 309L electrodes are used for the first layer of 308L cladding. They have been used to weld 304L when an increased chromium content will give increased corrosion resistance. The basic - rutile thin coating of Arcaloy 309L-16 gives an excellent combinatino of welding performance in all positions and a high resistance to cracking. It is therefore a good choice for a multitude of welding applications including tight joints.
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.