THE ASTM A106 PIPES ARE USUALLY USED IN PIPELINE PROJECTS,like oil, or gas,and so on. ALSO FOR HIGH TEMPERATURE SERVICE SIZE: FROM 1/4 INCH TO 28 INCH (OD from 13.7mm to 711.2mm)WALL THICKNESS: FROM SCH 10 TO SCH XXS (from 2mm to 60 mm)MATERIAL: ASTM A106 /A53 /API 5L /ST 37/ST 52/A179STANDARD: ASME . API. ANSI. GB. JIS. DINPACKING: PIPE CAP, BUNDLE, OR PLASTIC BAG COVERED.SURFACE: BLACK PAINT OR ...