00SMW500P0P - Harris Supermissileweld 2.5mm Universal Maintenance Electrode

The Ultimate Maintenance & Repair Electrode

The Harris Supermissileweld Steel Alloy Stick Electrode (2.5mm) is widely regarded in the industrial sector as the definitive solution for complex maintenance, repair, and overhaul (MRO) challenges. Engineered with a high-alloy composition—typically conforming to AWS E312-16 specifications—this electrode offers a unique ferrite-austenite metallurgical structure. This dual-phase structure provides exceptional resistance to cracking, even when welding base metals with high carbon content or unknown compositions.

For maintenance shops, the Supermissileweld is an essential inventory item. Its ability to generate tensile strengths of up to 120,000 PSI ensures that repairs on critical machinery, shafts, and gears are durable and reliable. Unlike standard mild steel rods, Supermissileweld can bridge gaps between dissimilar metals, such as joining stainless steel to carbon steel or attaching wear plates to heavy equipment. The 2.5mm diameter is particularly versatile, offering enough deposition for structural repairs while remaining controllable for thinner sections or detailed work on tool dies.

Operational efficiency is also a key feature. The electrode runs smoothly on both AC and DC+ currents, producing a stable arc with minimal spatter. The slag is easily removable, often self-peeling, which reduces post-weld cleanup time. Furthermore, the deposit is machinable, allowing for precise finishing on repaired parts. Whether dealing with tool steels, spring steels, or simply dirty, rusty metal that cannot be perfectly cleaned, the Harris Supermissileweld delivers consistent, high-quality results.

Key Technical Specifications

• High Strength: Delivers ~120,000 PSI tensile strength and 95,000 PSI yield strength.


• Versatility: Welds practically all steels, including high-carbon, tool, and stainless steels.


• Crack Resistance: Specialized chemistry prevents hot cracking in rigid or restrained joints.