Method Of Welding Cast Iron On Ship. Method of joining metals have been known for thousand of years but for most of this period the only form of welding was forge welding by a blacksmith. In general the best results are obtained when welding with low current and the lowest practical heat inputs.
Once a good weld deposit is made the two sides of the crack can be welded together. Also dont let the iron get hotter than 1400 F bright red. The most common method of cast iron welding is stick or arc welding.
Ensures a little preheat at room temperature.
It is recommended that you use ideal methods when repairing your cast iron pieces. Welding Handbook Welding and Related Processes for Repair and Maintenance Onboard 10th edition Notice. 95 20711 Cold repair on cast iron. Thats the critical temperature range of iron.