Long Weld Neck Flanges

Long weld necks are similar to weld neck flanges, with the exception that the neck is lengthened and acts like a boring extension. Long weld neck flanges are generally used on vessels, columns or barrels. In critical applications where working temperature, mechanical stress, and corrosion factors are elevated, heavy barrel (HB) and equal barrel (E) types might be utilized for their thicker barrels and increased support capacity.
- B16.5 / B16.47
- ½” – 36″
- 150# – 2500#
- Series A & Series B
- Hastelloy – C276, B3, C22, C-2000, G-30, 230
- Alloy 20, 200/201, 400, 600, 601, 625, 800HT, 825
- Duplex Stainless – 2205, 2507, 255
- Titanium – Grades 2, 7, and 12
- Aluminum Grades – 1100, 3003, 6061 and 5083
- Stainless Steel – 904L, 304, 304L, 316, 316L, 310, 317L, 321, 347
- Alloy Steel – F-5, F-9, F-11 and F-22
- ASTM – ASTM :A105 /A105N
- ASTM A350 – LF1, LF2 LF3.
- ASTM A694 – F42, 46, 48, 50, 52, 56, 60, 65, 70.
Other material available upon request
Long Weld Neck Flanges

- B16.5 / B16.47
- ½” – 36″
- 150# – 2500#
- Series A & Series B
- Hastelloy – C276, B3, C22, C-2000, G-30, 230
- Alloy 20, 200/201, 400, 600, 601, 625, 800HT, 825
- Duplex Stainless – 2205, 2507, 255
- Titanium – Grades 2, 7, and 12
- Aluminum Grades – 1100, 3003, 6061 and 5083
- Stainless Steel – 904L, 304, 304L, 316, 316L, 310, 317L, 321, 347
- Alloy Steel – F-5, F-9, F-11 and F-22
- ASTM – ASTM :A105 /A105N
- ASTM A350 – LF1, LF2 LF3.
- ASTM A694 – F42, 46, 48, 50, 52, 56, 60, 65, 70.
Other material available upon request










