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ANSWER:A792 SS Grade 80(550) is a steel grade in American standard ASTM A792/A792M, this specification covers 55% aluminum-zinc alloy-coated steel sheet in coils and cut lengths. A792 SS Grade 80(550) is Structural steel. A792 SS Grade 80(550) has three classes: A792 SS Grade 80(550) class 1, A792 SS Grade 80(550) class 2, A792 SS Grade 80(550) class 3.
Coating composition of A792 SS Grade 80(550) steel: the 55% aluminum-zinc alloy coating composition, by weight is normally 55% aluminum, 1.6% silicon, and the balance zinc.
A792 SS Grade 80(550) steel coating finish is N(Normal spangle) or M(Minimized spangle)
A792 SS Grade 80(550) steel Surface quality A (As coated surface) , B(Improved surface), C(Best quality surface)
A792 SS Grade 80(550) steel Surface treatment: Chemically treated or not chemical treated, oiled or not oiled.
A792 SS Grade 80(550) steel Coating mass are:
AZ30,AZ35,AZ40,AZ50,AZ55,AZ60,AZ70,AZM100,AZM110,AZM120,AZM150,AZM165,AZM180,AZM210
A792 SS Grade 80(550) steel yield strength should be not less than 80Ksi(550MPa)
A792 SS Grade 80(550) steel tensile strength should be not less than 82Ksi(570MPa)
A792 SS Grade 80(550) steel Elongation should be not less than 3%
