Flanges - ASME/ASTM Fittings - ASME/ASTM Forged Fittings - ASME/ASTM Steel Pipes (ASME/ASTM) Seamless Pipes ASTM A106 – SA 106/P265GH – API 5L – API X52ASTM A333 GR6/P265NL Welded Pipes ERW API 5L – ASTM A53SAW API 5L Wall thicknesses Available in all wall thicknesses Dimensions ½” – 60”