① Elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the suitability of the steel.

* Particular ranges of sulphur content may provide improvement of particular properties. For machinability a controlled sulphur content of 0,015 % to 0,030 % is recommended and permitted. For weldability, a controlled sulphur content of 0,008 % to 0,030 % is recommended and permitted. For polishability, a controlled sulphur content of 0,015 % max. is recommended.

+AT=solution annealed；+C=cold worked， +C suffix number represents the tensile strength grade, the minimum tensile strength value

Mechanical properties at room temperature of solution annealed a austenitic-ferritic steels and resistance to intergranular corrosion in conditions 1C, 1E, 1D, 1X, 1G and 2D
1C: The surface has scales (spot ground if necessary). Not surface defects; Hot formed, not heat treated, not descaled