size Seamless:from 1/2" to 24" Welded:from 24" to 96"( or as customer requirements) angle 22.5 deg, 30deg,45 deg,90 deg,180 deg, 1.0D, 1.5D, 2.0D, 2.5D, 3D,4D,5D,6D,7D-40D. thickness SCH10,SCH20,SCH30,STD SCH40, SCH60, XS, SCH80., SCH100, SCH120, SCH140, SCH160, XXS standard ASME B16.9, ASME B16.28, ASME B16.25, MSS SP-75 DIN2605 DIN2615 DIN2616 DIN2617 JISB2311 JISB2312 JISB2313 material Carbon steel(ASTM A234WPB,,A234WPC,A420WPL6.,ect) Stainless steel(ASTM A403 WP304,304L,316,316L,321.,ect) Alloy steel(ASTM A234 WP12,WP11,WP22,WP5,WP9,WP91,ect)