Scotland Sqa Practice Test & Exam Prep

Austenitic grades are non-hardenable by quench-and-temper and are generally non-magnetic when annealed; martensitic grades can be hardened by heat treatment Austenitic grades always contain no nickel; martensitic grades always contain molybdenum Austenitic grades are only used for castings; martensitic grades are only used for hull plate Martensitic grades cannot be welded under any conditions while austenitic grades cannot be machined