MSS SP44-ASME/ANSI B16.47 600 Class Weld Neck Flange/Standards, Dimensions & Weight

Weld Neck Flange is flanges that designed to be joined to a piping system by butt welding. This kind of flange include lots of specification, weld neck flange is expensive because of its long neck and cost of people for contact WN flange with pipeline or fitting, but is preferred for high stress applications. The necks, or hubs, transmits stresses to the pipeline. The gradual transition of thickness from the base of the hub to the wall thickness at the butt weld provides important reinforcement of the Weld Neck flange. The bore of Weld-Neck flange matches bore of the pipeline, reducing turbulence and erosion.

  • Our company is a manufacturer of MSS SP44ASME/ANSI B16.5 600LB WN Flange, which is precisely engineered in accordance with international quality standards. For detailed dimensions of 300 Class Weld Neck flange, kindly check the table below. Also, you can download the datasheet.
600 Class Weld Neck Flange Drawing MSS SP44 ASME/ANSI B16.5
Product Weld Neck Flange
Pressure Rating 600 lb, 600 Class
Dimensional Specification MMS SP44 ASME/ANSI B16.47
Size 26″ to 60″
Surface Treatment Anti-rust Oil, Paint, Zinc, Hot Dipped Galvanized
Grades 304, 304L, 316L, 321, 347, 904L, Duplex, Carbon Steel, Nickel Alloys
Test Certificates As per EN 10204 3.1
Inspection Videos, Pictures, Inspection Report with Goods
Pipe Normal Diam. O.D.
OF
Flange		 Thickness Length
Through
Hub		 Diam. of
Hub
at Base		 Hub
Diam.
Top		 Raised
Face
Diam.		 Diam. of
Bolt
Circle		 No. of
Bolt
Holes		 Diam. of
Bolt
Holes		 Diam. of
Bolt		 Fillet
Radius
Min.
inch O C Y X A R BD BN BH DB r1
26″ 1016 108 222.3 747.8 660.4 749.3 914.4 28 50.8 1 7/8 12.7
28″ 1073.2 111.3 235 803.1 711.2 800.1 965.2 28 53.8 2 12.7
30″ 1130.3 114.3 247.7 862.1 762 857.3 1022.4 28 53.8 2 12.7
32″ 1193.8 117.3 260.4 917.4 812.8 914.4 1079.5 28 60.5 2 1/4 12.7
34″ 1244.6 120.7 269.7 973.1 863.6 965.2 1130.3 28 60.5 2 1/4 14.2
36″ 1314.5 124 282.4 1031.7 914.4 1022.4 1193.8 28 66.5 2 1/2 14.2
38″ 1270 152.4 254 1022.4 965.2 1054.1 1162.1 28 60.5 2 1/4 14.2
40″ 1320.8 158.8 263.7 1073.2 1016 1111.3 1212.9 32 60.5 2 1/4 14.2
42″ 1403.4 168.1 279.4 1127.3 1066.8 1168.4 1282.7 28 66.5 2 1/2 14.2
44″ 1454.2 173 289.1 1181.1 1117.6 1225.6 1333.5 32 66.5 2 1/2 14.2
46″ 1511.3 179.3 300 1234.9 1168.4 1276.4 1390.7 32 66.5 2 1/2 14.2
48″ 1593.9 189 316 1289.1 1219.2 1333.5 1460.5 32 73.2 2 3/4 14.2
50″ 1670.1 196.9 328.7 1343.2 1270 1384.3 1524 28 79.2 3 14.2
52″ 1720.9 203.2 336.6 1394 1320.8 1435.1 1574.8 32 79.2 3 14.2
54″ 1778 209.6 349.3 1447.8 1371.6 1492.3 1632 32 79.2 3 14.2
56″ 1854.2 217.4 362 1501.6 1422.4 1543.1 1695.5 32 85.9 3 1/4 15.7
58″ 1905 222.3 369.8 1552.4 1473.2 1600.2 1746.3 32 85.9 3 1/4 15.7
60″ 1993.9 233.4 388.9 1609.9 1524 1657.4 1822.5 28 91.9 3 1/2 17.5