Jupiter BBB – Cast Iron Repair, Tight Access & Machinable Deposits (SMAW)

Jupiter BBB Arc Welding Rods – Cast Iron Repair Electrodes for Tight Access & Machinable Deposits (SMAW) - 1lb Tube

Product Description

The cast iron repair rod built for precision and control.
Jupiter BBB is a specialized stick electrode engineered for welding all grades of cast iron—including Meehanite, ductile, malleable, and gray iron—as well as cast iron to steel. Its unique non-conductive coating eliminates side arcing, making it ideal for tight spots and deep cavities.

Designed for machinability and arc control, Jupiter BBB provides stable, soft arcs with clean weld puddles and minimal fumes. A go-to solution when appearance, accuracy, and access matter most.

Key Features

• For all weldable grades of cast iron and cast iron to steel
• Non-conductive coating prevents side arcing in tight spots
• 65,000 psi tensile strength
• Fully machinable, porosity-free welds
• Excellent puddle visibility and stable arc
• Runs cool, with low fume output
• Use in all positions (AC or DCEP)

Packaging & Sizes

• Electrode length: 14"
• Sold in 1 lb, 5 lb, or 11 lb plastic tubes
• Available diameters:
• 3/32"
• 1/8"

Recommended Amperage Settings (±20%)

• 3/32": 60 Amps
• 1/8": 100 Amps
• Use AC or DC reverse polarity (DCEP)

Welding Instructions

• Use a medium arc with stringer beads
• Skip weld to prevent overheating
• Light peening between passes is recommended
• Preheat heavy or critical sections to 500°F (260°C)
• Cool slowly after welding

Applications

• Tight repair zones and out-of-position cast iron work
• Equipment with limited access or deep cavities
• Machinable, appearance-focused repairs without carbon buildup