Science, Maths & Technology
Manual metal arc welding (MMA)
...2–5 kg h-1. Materials: Most engineering metals and alloys can be welded by the MMA welding process (very versatile process). In welding carbon and low alloy steels, the coated electrodes are usually of low carbon steel. For alloy steels prone to formation of hard and brittle martensite on cooling, low alloy steel electrodes are used. Also, these steels are prone to...