ASME B16.47 Class 600 Series A Welding Neck Flanges

Nominal Pipe Size Outside Diameter (O) Minimum Thickness (T) Raised Face Diameter (R) Length Thru Hub (Y) Hub Diameter (X) Minimum Fillet Radius (r) Top of Hub (A) Bore (B) Approximate Weight Bolt Circle (C) Number of Holes Diameter of Holes
26 40.00 mm 4.25 mm 29.50 mm 8.75 mm 29.44 mm 0.50 mm 26.00 mm Specified by purchaser 940 lb 36.00 mm 28 2.00 mm
28 42.25 mm 4.38 mm 31.50 mm 9.25 mm 31.62 mm 0.50 mm 28.00 mm Specified by purchaser 1060 lb 38.00 mm 28 2.12 mm
30 44.50 mm 4.50 mm 33.75 mm 9.75 mm 33.94 mm 0.50 mm 30.00 mm Specified by purchaser 1210 lb 40.25 mm 28 2.12 mm
32 47.00 mm 4.62 mm 36.00 mm 10.25 mm 36.12 mm 0.50 mm 32.00 mm Specified by purchaser 1375 lb 42.50 mm 28 2.38 mm
34 49.00 mm 4.75 mm 38.00 mm 10.62 mm 38.31 mm 0.56 mm 34.00 mm Specified by purchaser 1540 lb 44.50 mm 28 2.38 mm
36 51.75 mm 4.88 mm 40.25 mm 11.12 mm 40.62 mm 0.56 mm 36.00 mm Specified by purchaser 1705 lb 47.00 mm 28 2.62 mm
38 50.00 mm 6.00 mm 41.50 mm 10.00 mm 40.25 mm 0.56 mm 38.00 mm Specified by purchaser 1470 lb 45.75 mm 28 2.38 mm
40 52.00 mm 6.25 mm 43.75 mm 10.38 mm 42.25 mm 0.56 mm 40.00 mm Specified by purchaser 1630 lb 47.75 mm 32 2.38 mm
42 55.25 mm 6.62 mm 46.00 mm 11.00 mm 44.38 mm 0.56 mm 42.00 mm Specified by purchaser 2030 lb 50.50 mm 28 2.62 mm
44 57.25 mm 6.81 mm 48.25 mm 11.38 mm 46.50 mm 0.56 mm 44.00 mm Specified by purchaser 2160 lb 52.50 mm 32 2.62 mm
46 59.50 mm 7.06 mm 50.25 mm 11.81 mm 48.62 mm 0.56 mm 46.00 mm Specified by purchaser 2410 lb 54.75 mm 32 2.62 mm
48 62.75 mm 7.44 mm 52.50 mm 12.44 mm 50.75 mm 0.56 mm 48.00 mm Specified by purchaser 2855 lb 57.50 mm 32 2.88 mm
50 65.75 mm 7.75 mm 54.50 mm 12.94 mm 52.88 mm 0.56 mm 50.00 mm Specified by purchaser 3330 lb 60.00 mm 28 3.12 mm
52 67.75 mm 8.00 mm 56.50 mm 13.25 mm 54.88 mm 0.56 mm 52.00 mm Specified by purchaser 3560 lb 62.00 mm 32 3.12 mm
54 70.00 mm 8.25 mm 58.75 mm 13.75 mm 57.00 mm 0.56 mm 54.00 mm Specified by purchaser 3920 lb 64.25 mm 32 3.12 mm
56 73.00 mm 8.56 mm 60.75 mm 14.25 mm 59.12 mm 0.62 mm 56.00 mm Specified by purchaser 4280 lb 66.75 mm 32 3.38 mm
58 75.00 mm 8.75 mm 63.00 mm 14.56 mm 61.12 mm 0.62 mm 58.00 mm Specified by purchaser 4640 lb 68.75 mm 32 3.38 mm
60 78.50 mm 9.19 mm 65.25 mm 15.31 mm 63.38 mm 0.69 mm 60.00 mm Specified by purchaser 5000 lb 71.75 mm 28 3.62 mm