Forney 1/8 in. diameter x 15.3 in. length Non-Machinable Cast Iron Welding Rods are engineered to deliver strong, reliable welds on cast iron components that can’t be machined or that require built-up repair. With a tensile strength rated at 62,000 psi and RC 39 hardness, these rods provide durable repairs that stand up to demanding use.
Why this Forney welding rod stands out
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AC/DC compatibility: Compatible with a wide range of welding machines, giving you flexibility in shop or field settings.
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High-strength performance: 62,000 psi tensile strength to handle load-bearing repairs and thermal cycling common in cast iron parts.
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Perfect for non-machinable cast iron: Specifically formulated for joints and surfaces that aren’t easily machined, delivering solid, dependable welds.
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Long, consistent feed: 15.3 in length helps maintain steady welds and reduces rod changes on larger repair jobs.
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Convenient packaging: 1 lb boxed package for straightforward storage and quick project readiness.
Technical snapshot
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Diameter: 1/8 in
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Length: 15.3 in
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Material: Non-Machinable Cast Iron
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Tensile Strength: 62,000 psi
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Hardness: RC 39
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Amps: 70–125
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Current Type: AC/DC
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Packaging: Boxed
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Weight: 1 lb
Ideal use cases
Use these rods to repair cracked or worn cast iron components where machinability isn’t feasible. They’re well-suited for repairing brackets, housings, gear casings, engine blocks, valve covers, and other cast-iron parts that demand robust, durable welds that resist fatigue and vibration.
Practical guidance for best results
- Thoroughly clean the joint area to remove oil, grease, rust, and scale for optimal fusion.
- Operate a compatible AC or DC welder and set the current within the 70–125 A range to achieve stable arc performance.
- Weld with short, controlled passes and allow adequate cooling between passes to minimize distortion inherent to cast iron repairs.
- Inspect penetration and bead quality after each pass and apply additional passes as needed to seal cracks and restore strength.
- Store the rods in a dry environment to preserve performance and shelf life.
Forney’s expertise in cast iron repair shines with this 1/8 in. x 15.3 in. welding rod, offering a reliable, high-strength solution for non-machinable cast iron parts. Whether you’re stocking a shop, handling field repairs, or tackling a one-off restoration, these rods help you achieve trusted results with every weld.
