Buttwelding Fittings Specification ASTM A234M Welded and Seamless Carbon and Alloy Steel Pipe Fittings for Moderate and High Temperature Service ASTM A420M Welded and Seamless Carbon and Alloy Steel Pipe Fittings for Low Temperature Service Dimensions ASME B16.9 Product Elbows, Reducing Elbows, Returns, Tees, Crosses, Reducers, Stub Ends, Caps Grade ASTM A234M WPB, ASTM A420M WPL6. Refer standard for others Flanges Specification ASTM A105M Carbon Steel Forgings for Piping Applications Dimensions ASME B16.5 Product Face Bore Class Weld Neck, Slip-on, Blind Flanges. Others refer to the specification. Plain, Raised Face Pipe Schedule 150, 300, 400, 600, 900, 1500, 2500 (to 600mm only) Grade Carbon Steel Specification AS 2129 Flanges for Pipes, Valves and Fittings Dimensions AS 2129 “Table” flanges pressure – temperature ratings, materials and dimensions Application Face Bore Table Slip-on, Blind “Table” Flanges Plain To suit Pipe & Tube OD D, E, F and H Standard Atlas Steels stocks of carbon steel pipe comply with: Welded (ERW) ASTM A53M grade B API 5L grade X42, PSL1 or PSL2 AS/NZS 1163 C350L0 Seamless ASTM A106M grade B ASME SA106M grade B API 5L grade B and grade X42, PSL1 or PSL2