... alloy steel pipe(825 tube) Standards: ASTM B161,163,165,167,407,444 Steel Grade: ALLOY200,400,600,625,800,800H,825 nickel alloy ... steel pipe(825 tube)Grade: Alloy 200, 400, 600, 625, 800, 800H, 825, 904LStandard ... .2904L0.021.002.000.0450.03523 - 2819 234 5 nickel alloy pipe(825 tube)