... conditions, mechanical properties,and high-temperature characteristics.ASTM A 335 P22 seamless pipes equivalent Standards: EN 10216-2, ASTM A213, ASME ... SA213, GOST 550-75, NBR 5603ASTM A 335 P22 seamless pipes Equivalent Material: T22, 10CrMo910, 10CrMo9-10, 1.7380 ... Heat TreatmentA / N+TN+T / Q+TN+TASTM A 335 P22 seamless pipesChemical Composition:C, % Mn, % P,% S,% Si,% Cr,% ...