E7016 vs E7018: Which Low-Hydrogen Rod for Your Welder?
Both are 70 ksi low-hydrogen rods for code-quality structural welds. E7016 runs on AC without high open-circuit voltage. E7018 has iron powder in the flux for higher deposition but typically needs DC or a high-OCV AC machine.
Key Differences
| Attribute | E7016 | E7018 |
|---|---|---|
| Difference 1 | E7016 uses potassium flux and runs on any AC welder | |
| Difference 2 | E7018 uses iron powder flux for 10-15% higher deposition rates but requires DC or AC with 70+ OCV | |
| Difference 3 | Both produce low-hydrogen deposits with the same tensile strength | |
| Difference 4 | Both require the same dry storage and rebaking protocols |
Use E7016 when:
You have an AC-only welder (buzz box) and need code-quality low-hydrogen welds. Small shops and field work where only AC is available.
Use E7018 when:
You have a DC welder or high-OCV AC machine. Production structural fabrication where deposition rate matters. E7018 is more commonly stocked and specified in welding procedures.
How E7016 and E7018 Work Together
E7018 is specified far more often in welding procedure specifications (WPS). If a WPS calls for E7018, you cannot substitute E7016 without re-qualifying the procedure. However, if you need the same mechanical properties on an AC machine, E7016 is the direct answer.
Common Mistake With E7016
Assuming E7018 runs on any AC machine. Many small AC welders do not have enough open-circuit voltage to strike and maintain a stable E7018 arc. E7016 solves this problem.
Where to Buy
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