The 11018‑M is a low‑hydrogen, iron‑powder coated SMAW electrode crafted for structural welding on high‑strength, low‑alloy steels. It delivers superior mechanical properties, low diffusible hydrogen, and excellent impact toughness for demanding environments
Key Features:
- Minimum tensile strength of 110 ksi (≈ 760 MPa)
- Strong impact resistance at low temps (e.g. ≥ 20 ft‑lb CVN at –50 °F)
- Low hydrogen content (< 4 mL/100 g) is suitable for welding high-hydrogen‑sensitive steels
- Available in multiple diameters with DC‑DCEP or AC usability
Applications
- Ideal for quenched & tempered steels like ASTM A514, A517, HY‑80, HY‑100, and military/high‑pressure components
- Used in critical structural welding: pressure vessels, crane booms, bridge work, and heavy fabrication
Handling & Storage
- Preheat in a rod oven at 250–300 °F and rebake at 600 °F for 1 hr if exposed to moisture
- Maintain short arc length; stringer beads recommended; use back‑step technique
Best Practices
- Preheat base metal to 300–400 °F for high‑strength steels.
- Keep arc short; avoid weaving.
- Store in holding oven and handle to minimize moisture exposure.
- Consider PWHT (post weld heat treat) where required by code or project specs.
TYPICAL CHEMISTRY:
Carbon (C): 0.08 %
Manganese (Mn): 1.49 %
Silicon (Si): 0.41 %
Nickel (Ni): 1.86 %
Molybdenum (Mo): 0.32 %
