Alloy 218 are designated by AISI four-digit numbers. They are more responsive to mechanical and heat treatments than carbon steels. They comprise different kinds of steels having compositions which exceed the limitations of B, C, Mn, Mo, Ni, Si, Cr, and Va in the carbon steels.
This datasheet provides more details about AISI 4817H alloy steel.
Telegraphic Transfer (T/T), Letter of Credit at Sight (Sight L/C), Letter of Credit (L/C), Cash in Advance (CID), Cash Advance (CA)