- Metal Stitching
- Fusion Welding/Furnace Brazing
- In-house and On-site Machining Services
- Inspection & Testing Services In-shop or On-site
- Precision Thread Repair Services
- What is Metal Stitching?
- Can I Fix it Myself with LNS Products?
- Metal Stitching Pins
- Locks & Kits
- Stitching Pin Starter Kits
- Tooling & Accessories
- Kits for Specific Repairs
Cast iron only cracks when it is stressed beyond its tensile strength. This includes all heat related cracks, freeze cracks, impact and bending loads. Cast iron does not weaken over time. It does change if exposed to high temperatures over long periods of time like exaust manifolds and wood burning stoves. The process is called graphitization. The carbon is changed to graphite and any type of welding that requires melting the cast iron becomes very dificult because the filler metal will not bond properly. Brazing is not affected because the iron is not melted during the process. Click here to learn more