Sold in 1 Lb. increments.
Recommended for welding engineering-grade cast iron when you require mechanical properties similar to the base metal. Eutectic 3055 deposits a high-strength weld with excellent crack resistance properties on thick-section casting. Good for welding in all positions.
Typical applications include pump and differential housings, motor blocks, high phosphorus irons and steels, heavy section casting repair, and dimensional restoration.
Preparation: Thoroughly clean joints and parts to be welded. Stop crack growth by drilling 1/4" holes at leading points. Preheat casting to 150-200ºC, holding for 1 hour per inch of thickness. Prepare joints with Eutectic ChamferTrode® or ExoTrode® with either a single-V or a double-V, depending on joint thickness and accessibility. Allow a root opening of 1/8" for full penetration welds.
Technique: Deposit short runs no longer than 2" and moderately peen 2nd any subsequent passes. For long cracks in heavy castings, use either a cascade and/or block deposition sequence.
Post-Welding: Slow down cooling after welding using available material such as vermiculite, sand, or fire retardant blankets.
Current: DCEP (Direct Current Electrode Positive)
Typical Tensile Strength: 55,000 psi (380 N/mm²)
Hardness: HRB 90
|Diameter||3/32" (2.4mm)||1/8" (3.2mm)|