ASME Flanges

American Flange Standards

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.

ASME/ANSI B16.5

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.

ASME/ANSI B16.47

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.

ASME/ANSI B16.48

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.

ASME/ANSI B16.36

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-F9-Weld-Neck-Flanges-ASME-B16.5-B16.47

ASTM A182 F9 Flanges,Weld Neck Flanges ASME B16.5 B16.47

ASME Flanges /

ASTM A182 F9 is a forging material grade of so-called “9-Chrome 1-Moly” material ,the same grade with the piping grade ASTM A335 P9 Seamless Pipes,and ASTM A234 WP9 for Pipe fittings.

Other Flange type available:Slip-On (SO) Flanges / Blind (BL) Flanges/ Socket Weld (SW) Flanges /Long Weld Neck (LWN) Flanges
Standards: ASME B16.5, ASME B16.47, MSS-SP-44
Size:1/2″ to 60″
Class:150lbs to 2500lbs

ASTM A182 F9 Flanges,Weld Neck Flanges ASME B16.5 B16.47 Read More »

ASTM A350 ASME SA350 LF2 Weld Neck Flanges ASME B16.5

ASTM A350 ASME SA350 LF2 Weld Neck Flanges ASME B16.5

ASME Flanges /

manufacturers of ASTM A350 weld neck flanges, ASTM A350 covers carbon and low-alloy steel forgings specifically designed for pressure systems operating at low temperatures.

Full compliance with ASTM A350 LF2 Class 1/Class 2 specifications
Manufactured to ASME B16.5 / B16.47 A&B. dimensional standards
Available in sizes ½” to 60” (DN15 to DN1500)
Pressure ratings: 150# to 2500#

ASTM A350 ASME SA350 LF2 Weld Neck Flanges ASME B16.5 Read More »

ASTM-A182-F44-Weld-neck-flange-blind-flange-ASME-B16.5

ASTM A182 F44 flange UNS S31254 254SMO Flanges

ASME Flanges /

ASTM A182 F44 is a super austenitic stainless steel, also known as UNS S31254 or 254 SMO. This grade contains high levels of molybdenum (6%), nickel, and chromium, offering outstanding resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking.

Type: Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint, Orifice

Sizes: 1/2” to 60 ” or custom as per client specifications

ASTM A182 F44 flange UNS S31254 254SMO Flanges Read More »