Weld Neck Flange
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Weld Neck Flange
At Royal Forge & Fittings Industries, we take pride in offering high-quality Weld Neck Flanges, meticulously crafted to meet the most demanding industrial applications. Our Weld Neck Flanges are designed for reliability, strength, and longevity, making them an ideal choice for industries where safety and performance are critical. Whether you are working in the oil and gas, chemical, power generation, or any other high-pressure system, our Weld Neck Flanges deliver exceptional performance under extreme conditions.
Available in a wide range of materials, including carbon steel, stainless steel, alloy steel, and other specialized alloys, our Weld Neck Flanges are engineered to perform optimally in different environments, including corrosive, high-temperature, and high-pressure applications.
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Premium Weld Neck Flanges by Royal Forge & Fittings Industries
Weld Neck Flanges are a type of pipe flange designed to be welded directly to the pipe. With a long, tapered neck that helps to evenly distribute stress over a wide area, these flanges provide superior strength and are ideal for high-pressure and high-temperature environments. The design of the Weld Neck Flange minimizes the risk of stress concentrations, offering enhanced resistance to leaks and structural failure.
Whether you are designing a new system, replacing an existing component, or seeking to upgrade the durability of your piping network, Weld Neck Flanges from Royal Forge & Fittings Industries are engineered to deliver unmatched performance and dependability.
Features Of Weld Neck Flange
- Long Tapered Neck
- Welded Connection
- Pressure Resistance
- Smooth Flow Path
- Materials
Application Of Weld Neck Flange
- Oil and Gas Industry
- Chemical and Petrochemical
- Power Generation
- Nuclear Power
- Food and Beverage
Specification Of Weld Neck Flange
| Material of Construction | Standard | Grades |
|---|---|---|
| Stainless Steel Weld Neck Flanges | ASTM A182 , A240 | F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L |
| Carbon Steel Weld Neck Flanges | ASTM A105 | Gr. F42,46,52,56,60,65,70 |
| Alloy Steel Weld Neck Flanges | ASTM A182 | F1,F5,F9,F11,F22,F91 |
| Nickel Alloy Weld Neck Flanges | ASTM SB564, SB160, SB472, SB162 | Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), |
| Copper Alloys Weld Neck Flanges | ASTM SB 61 , SB62 , SB151 , SB152 | UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200, |
| Low Temperature Carbon Steel Weld Neck Flanges | ASTM A350 | LF2 , LF3 |
| Duplex Steel Weld Neck Flanges | ASTM A182, A240 | UNS F 44, F 45, F51, F 53, F 55, F 60, F 61 |
Dimensional Tolerances of Welding Neck Flanges
| Outside Diameter ≤ 24 = 1.6 mm | > 24 = ± 3.2 mm | Inside Diameter ≤ 10 = ± 0.8 mm | 12 thru 18 = 1.6 mm | ≥ 20 = + 3.2 mm / - 1.6 mm |
| Diameter of Contact Face 1.6 mm Raised Face = ± 0.8 mm 6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm | Diameter of Hub at Base ≤ 24 = 1.6 mm | > 24 = ± 3.2 mm |
| Diameter of Hub at Point of Welding ≤ 5 = + 2.4 mm / - 0.8 mm | ≥ 6 = + 4.0 mm / - 0.8 mm | Drilling Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm Eccentricity of Bolt Circle with Respect to Facing ≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max |
| Thickness ≤ 18 = + 3.2 mm / - 0 | ≥ 20 = + 4.8 mm / - 0 | Length thru Hub ≤ 10 = 1.6 mm | ≥ 12 = ± 3.2 mm |
