Flanges (From Solid Bar & Forging)

Flanges (From Solid Bar & Forging)
  • Sizes: ½” to 72”
  • Class: 150 to 2500; 2500 PSI to 15000 PSI
  • Types: Blind, Weldneck, Socket Weld, Slip On, Threaded, Lap Joint
  • Schedule: S10, S20, S30, S40, STD, S60, XS, S80, S100, S120, S140, S160, XXS
  • Standards: API, ASTM, DIN, EN
  • Material Grades: Incoloy (800, 800H, 800HT, 825), Alloy 20, Hastelloy (C22, C276), Cupronickel (Cu-Ni), Monel 400, Inconel (600, 625), Titanium (Gr.1, 2, 3), Urea Grade, Duplex/Super Duplex (F51, F53, F55, F44), Stainless Steel (AISI 304, 316, 321, 347), Alloy Steel (AISI Gr.1, Gr.5, Gr.9, Gr.91, Gr.11, Gr.22), Carbon Steel (ASTM 105, A516/70, A350 LF2, A694 F60-65)

Applications: Used to connect pipes and valves in various industries, including oil & gas, chemical, and power plants. Suitable for handling a wide range of pressures and temperatures, ensuring system integrity and safety.

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Weld Neck (WN) Flange

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Blind Flange

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Slip-On Flange

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Socket Weld (SW) Flange

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Threaded Flange

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Orifice Flange Assembly

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Stub End (for Lap Joint Flange connections)

Paddle Blank & Spacer

Paddle Blank & Spacer
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Paddle Blank & Spacer

  • Sizes: ½” to 60”
  • Thickness: 6.0 mm to 400.0 mm
  • Class: 150 to 2500; 2500 PSI to 15000 PSI
  • Standards: ASME B16.48, API STD, MESC/SHELL, Client Drawing
  • Material Grades: Incoloy (800, 800H, 800HT, 825), Alloy 20, Hastelloy (C22, C276), Cupronickel (Cu-Ni), Monel 400, Inconel (600, 625), Titanium (Gr.1, 2, 3), Urea Grade, Duplex/Super Duplex (F51, F53, F55, F44), Stainless Steel (AISI 304, 316, 321, 347), Alloy Steel (AISI Gr.1, Gr.5, Gr.9, Gr.91, Gr.11, Gr.22), Carbon Steel (ASTM 105, A516/70, A350 LF2, A694 F60-65)

Applications: Isolate or open pipeline sections for safety and maintenance with quick flange access.

Spectacle Blind

Spectacle Blind
Spectacle Blind
Untitled design (22)

Spectacle Blind

  • Sizes: ½” to 60”
  • Thickness: 6.0 mm to 400.0 mm
  • Class: 150 to 2500; 2500 PSI to 15000 PSI
  • Standards: ASME B16.48, API STD, MESC/SHELL, Client Drawing
  • Material Grades: Incoloy (800, 800H, 800HT, 825), Alloy 20, Hastelloy (C22, C276), Cupronickel (Cu-Ni), Monel 400, Inconel (600, 625), Titanium (Gr.1, 2, 3), Urea Grade, Duplex/Super Duplex (F51, F53, F55, F44), Stainless Steel (AISI 304, 316, 321, 347), Alloy Steel (AISI Gr.1, Gr.5, Gr.9, Gr.91, Gr.11, Gr.22), Carbon Steel (ASTM 105, A516/70, A350 LF2, A694 F60-65)

Applications: Quickly isolate or open pipeline sections during maintenance or testing without pipeline disassembly.

Straight Hub Welding Flange (LWN)

Straight Hub Welding Flange (LWN)
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Straight Hub Welding Flange (LWN)

Long Weld Neck Flanges
  • SIZES: ½” to 60”
  • CLASS: 150 to 2500
  • TYPE: Long Weld Neck (LWN) – Straight & Heavy Barrel Types
  • SCHEDULE: S10, S20, S30, S40, STD, S60, XS, S80, S100, S120, S140, S160, XXS
  • STANDARD: ASME B16.5
MATERIAL GRADES:
  • Nickel Alloys: Incoloy (800, 800H, 800HT, 825), Inconel (600, 625), Monel 400
  • Specialty Alloys: Alloy 20, Hastelloy (C22, C276), Cu-Ni, Titanium (Gr.1, 2, 3), Urea Grade
  • Duplex & Super Duplex: F51, F53, F55, F44
  • Stainless Steel: AISI 304, 316, 321, 347
  • Alloy Steel: AISI Gr.1, Gr.5, Gr.9, Gr.11, Gr.22, Gr.91
  • Carbon Steel: ASTM A105, A350 LF2, A516 Gr.70, A694 F60–F65

Hunter Steel Flanges offers precision-engineered Long Weld Neck Flanges (LWN) designed for high-pressure, high-temperature applications requiring seamless flow and enhanced reinforcement. These flanges are ideal for critical process piping systems, pressure vessels, and heat exchangers. Available in a wide range of sizes, pressure classes, and material grades, our LWN flanges meet stringent international standards and can be customized for straight or heavy barrel configurations based on client specifications.