Material Selection and Testing Outcome 3 Q3.1.(a). - Mechanical Drive Shaft - A suitable material would be medium carbon steel. - Electrical Socket - Suitable materials for this would be, brass cable terminals, plastic, and mild steel screws. - Welded Pressure Vessel - A suitable material would be manganese steel. (b). - Medium carbon steel - A drive shaft is required to be strong, tough, have high fatigue resistance and a high surface hardness, at …showed first 75 words of 343 total…

…showed last 75 words of 343 total…desire to employ materials of high strength and satisfactory fracture toughness for pressure vessels, this makes manganese metal ideal for this type of use. This type of metal has 1.5% manganese added which increases its shock resistance considerably. However, the principal manganese steels contain between 12 - 15% manganese and have very distinct work hardening qualities. They can be forged and machined. Their surfaces harden very rapidly when subjected to heavy wear, whilst the underlying metal remains tough.