A-235 Automotive Ductile Iron Plugs, Box of 100

A-235 Automotive Ductile Iron Plugs (Box of 100) - Essential for Irontite Casting Crack Repair

These A-235 Automotive Ductile Iron Plugs, supplied in a convenient box of 100, are a fundamental component of Irontite’s renowned cold crack repair system for castings. Featuring a small end diameter of 0.235 inches and a 15/16-inch thread length, these precisely threaded and tapered plugs are engineered to create an incredibly tight, durable, and leak-proof thread-to-thread fit when torqued into position. They are specifically designed for repairing cracks, particularly in high-pressure and high-temperature areas like the valve seat region of a cylinder head, ensuring a lasting “add and move metal” repair.

A-235 Automotive Ductile Iron Plugs (Box of 100) - For Robust Cold Crack Repair in Castings

The A-235 Automotive Ductile Iron Plugs, available in a box of 100, are cornerstone components of the trusted Irontite cold crack repair system. These high-quality, threaded ductile iron plugs are specifically engineered to provide durable, reliable, and leak-proof repairs for cracks in various castings, especially critical automotive components.

Precision Specifications for Critical Repairs:

These plugs are meticulously manufactured with specific physical characteristics that ensure their effectiveness:

• Thread Length (“A”): 15/16 inches, providing ample engagement within the casting.

• Small End Diameter (“B”): 0.235 inches, critical for the tapered fit.

The tapered design of these plugs, in conjunction with corresponding tapered taps, creates an exceptionally tight, metal-to-metal thread-to-thread fit when the plugs are fully torqued. This tight seal is crucial for maintaining pressure and integrity in repaired areas.

Purpose in Irontite’s Cold Crack Repair System:

These A-235 plugs are integral to Irontite’s unique method of repairing cracks by adding and moving metal. They are designed to be systematically installed along the line of a crack, often in an overlapping fashion, to physically close and reinforce the damaged area. Their robust ductile iron construction makes them particularly suitable for repairing castings subjected to:

• High Pressure: Such as engine blocks and cylinder heads.

• High Temperatures: Specifically effective in demanding zones like the valve seat area of a cylinder head.

Associated Tools for Optimal Installation:

For a successful and lasting repair, these plugs are designed to be used with specific Irontite tools, ensuring perfect compatibility and performance:

• Drill P/N 407-5102-35: A 13/64 HSS (High-Speed Steel) Drill for precisely boring the initial hole.

• Reamer P/N 407-5202-35: An HSS Tapered Reamer (for A-200/A-235 plugs) used to prepare the hole, especially in thick metal, extending the tap’s lifespan and ensuring proper taper.

• Tap P/N 407-5302-35: An HSS Tapered Tap specifically designed for A-235 plugs, creating the perfect threads for a tight fit.

Recommended Installation Process for a Leak-Proof Fit:

After the hole is accurately drilled, reamed (if the metal thickness requires it), and tapped, the installation of the A-235 plug follows a precise procedure:

1. Seal Application: To achieve a truly leak-proof repair, it is strongly recommended to dip the plug in Irontite’s Ceramic Seal (P/N 468-9120-16) just before torquing it into position.

2. Torquing: The plug is then fully torqued into the prepared hole, utilizing the tapered threads to create a secure, high-pressure seal.

3. Finishing: Once torqued, the excess part of the plug is carefully cut off flush with the casting surface. The top of the plug is then precisely peened, always peening away from the center of the plug. This final peening action helps to further expand the plug material, securely closing the threads at the casting surface and ensuring a durable, permanent repair.

By utilizing these A-235 Automotive Ductile Iron Plugs as part of the complete Irontite system, you can confidently perform reliable, high-integrity repairs on valuable automotive castings.