American flange standards (ASME/ANSI) are widely used in petrochemical, oil & gas, and heavy industrial applications globally. These standards provide comprehensive specifications for various pressure classes.
Pipe flange specs for sizes 15-600mm (1/2-24″). Weld neck, slip-on, socket weld, lap joint, blind, and threaded types.
Class 150 |
Lapped, blind, socket weld, threaded, weld neck, long weld neck and slip-on flanges. |
Class 300 |
Lapped, blind, socket weld, threaded, weld neck, long weld neck and slip-on flanges. |
Class 400 |
Lapped, blind, socket weld, threaded, weld neck, long weld neck and slip-on flanges. |
Class 600 |
Lapped, blind, socket weld, threaded, weld neck, long weld neck and slip-on flanges. |
Class 900 |
Lapped, blind, socket weld, threaded, weld neck, long weld neck and slip-on flanges. |
Class 1500 |
Lapped, blind, socket weld, threaded, weld neck, long weld neck and slip-on flanges. |
Class 2500 |
Lapped, blind, threaded, weld neck and long weld neck flanges. |
Large-diameter pipe flange specs for 650-1500mm (26-60″). Weld neck and blind configurations in Series A and B types.
Class 150 A |
Weld neck and blind flanges. |
Class 300 A |
Weld neck and blind flanges. |
Class 600 A |
Weld neck and blind flanges. |
Class 900 A |
Weld neck and blind flanges. |
Class 150 B |
Weld neck and blind flanges. |
Class 300 B |
Weld neck and blind flanges. |
Class 600 B |
Weld neck and blind flanges. |
Class 900 B |
Weld neck and blind flanges. |
Spectacle blind and spacer (line blank) flange specs for isolation in full face, raised face, and ring joint types.
Class 150 |
Spectacle blinds, spacers, and line blinds. |
Class 300 |
Spectacle blinds, spacers, and line blinds. |
Class 600 |
Spectacle blinds, spacers, and line blinds. |
Class 900 |
Spectacle blinds, spacers, and line blinds. |
Class 1500 |
Spectacle blinds, spacers, and line blinds. |
Class 2500 |
Spectacle blinds, spacers, and line blinds. |
Orifice flange specs with pressure tapping points for flow measurement. Available in weld neck and threaded configurations.
2006 Edition |
Orifice flanges for differential pressure flow measurement. |
ASTM A182 F347 / F347H Weld Neck Flange Manufactuer,
Size range: ½” to 48”
Standards: ASME B16.5, ASME B16.47, MSS SP-44, API 605, DIN, EN 1092-1
Flange type:ASTM A182 F347 Weld neck flanges,ASTM A182 F347 Slip on Flange,ASTM A182 F347 Blind Flange
Face:Raise face,RF,Flat Face,Ring Joint,RTJ
ASTM A182 F347 | 347H WELD NECK FLANGE RF ASME | ANSI B16.5 Read More »
We are a professional manufacturer and global exporter of ASTM A182 F304 and F304L stainless steel flanges, available in a wide variety of types including Weld Neck (WN), Slip-On (SO), Blind (BL), Socket Weld (SW), and Threaded (TH) flanges.
Dimensions: ASME B16.5, B16.47, DIN, EN1092-1, BS4504
Size Range: ½” to 48” (DN15–DN1200)
ASTM A182 F304/304L Flange ASME B16.5 Weld Neck Flanges Read More »
F904L flanges are the forged 904L grade according to ASTM A182 standard ,which is the Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service.
Welding Neck (WN)
Slip-On (SO)
Bind Flange(BL)
ASME B16.5 (for sizes DN 15–DN 600)
ASME B16.47 (for larger diameters)
Optionally MSS-SP-44 or API 605
Stainless Steel 904L Flanges | ASTM A182 UNS N08904 Weld Neck Flanges Read More »
ASTM A105 covers forgings for piping components such as flanges, fittings, valves, and similar parts for high-temperature service.
ASTM A105 Flange Dimensions are typically as per ASME B16.5, covering:
Pressure classes: 150, 300, 600, 900, 1500, and 2500
Nominal Pipe Sizes (NPS): ½” to 24”
Tolerances per ASME B16.5 and/or customer drawing.
ASTM A105 Flange Specification Read More »
ASTM A182 / A182M – Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
ASTM A182 F1 F5 F9 F11 F12 F22 F91 F92 Low Alloy Steels Specification for Flange Specification
ASME B16.5 (sizes up to 24″)
ASME B16.47 (for larger diameters)
Pressure Classes: 150#, 300#, 600#, 900#, 1500#, 2500#
ASTM A694 flanges are high-strength carbon and alloy steel forgings designed for high-pressure transmission service. These flanges are commonly used in oil & gas pipelines, refineries, petrochemical plants, and power generation projects.
Manufactured to meet the requirements of the ASTM A694 standard, these flanges are available in a wide range of pressure classes (150# to 2500#) and sizes (½” to 48″), ensuring compatibility with ASME B16.5, ASME B16.47, and API 6A specifications.
ASTM A694 / A694M F52,F60,F65,F70 Flanges Specification Read More »
ASTM B564 UNS N06625 Flanges, commonly known as Inconel 625 flanges,
Flange Type: Weld Neck flange, Slip on flange, Blind flanges, etc.
Facing Type: RF, FF, RTJ
ASTM B564 UNS N06625 Inconel 625 Flanges,Weld neck flanges ASME B16.5 Read More »
Weld Neck Flanges made from ASTM A182 F53 are high-performance, corrosion-resistant flanges manufactured from Super Duplex Stainless Steel UNS S32750. These flanges are ideal for high-pressure and corrosive environments such as offshore, petrochemical, and desalination plants.
Material: ASTM A182 Grade F53
UNS Number: S32750
Common Type: Weld Neck, Slip-On, Blind, Lap Joint Flanges
Standards: ASME B16.5 / B16.47 / EN 1092-1
ASTM A182 F53 Weld neck Flanges UNS S32750 ASME B16.5 B16.47 Read More »
ASTM A266 SA266 Gr. 4 Forging Steel Ring DISC Flanges,
Type: Forged steel flanges – Weld Neck (WN), Blaind (BL), Slip-On (SO), Socket Weld (SW), Threaded (TH)
Forged disc,Forged ring,forged tubesheet,
ASTM A266 SA266 Gr. 4 Forging Steel Ring DISC Flanges Read More »
ASTM A182 F12 is a Cr-Mo (Chromium-Molybdenum) alloy steel, designed for high-temperature and high-pressure service in applications such as power plants, refineries, and petrochemical systems. F12 is a Class 1 or Class 2 grade typically used in forged flanges, fittings, valves, and other pressure-containing components.
Standards: ASME B16.5, B16.47, MSS-SP-44
Sizes: ½” to 60” (Custom sizes available)
ASTM A182 F12 Flange Weld Neck Flange ASME B16.5 Read More »