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 Stainless steel flanges

ASTM A182 Stainless Steel F304L,F316L,F321,F347,F347H, F317L,F310 Flanges

ASME Flanges /

ASTM A182 stainless steel flanges are available in multiple material grades, each developed for specific service conditions:

ASTM A182 F304 / F304L
ASTM A182 F316 / F316L
ASTM A182 F321
ASTM A182 F347
ASTM A182 F51 (Duplex 2205)
ASTM A182 F53 (Super Duplex 2507)
Weld Neck Flange (WN)
Blind Flange (BL)
Slip-On Flange (SO)
Socket Weld Flange (SW)
Threaded Flange (TH)

ASTM A182 Stainless Steel F304L,F316L,F321,F347,F347H, F317L,F310 Flanges Read More »

ASTM A182 F22 Weld neck Flange ASME B16.5

ASTM A182 F22 Weld Neck Flange WNRF ASME B16.5 Blind Flange

ASME Flanges /

ASTM A182 F22 Flange Specifications
Material Grade: ASTM A182 / ASME SA182 F22 (Class 1 / Class 3)
Flange Type: Weld Neck (WN),Blind Flange (BL),Slip on Flange(SO)
Standards: ASME B16.5, ASME B16.47 Series A/B, MSS SP-44
Pressure Ratings: Class 150 / 300 / 400 / 600 / 900 / 1500 / 2500
Size Range: 1/2″ – 48″
Face Type: RF (Raised Face), RTJ (Ring Type Joint)

ASTM A182 F22 Weld Neck Flange WNRF ASME B16.5 Blind Flange Read More »

ASTM-B462-UNS-N08020-Alloy-20-Weld-Neck-Flange

ASTM B462 UNS N08020 Alloy 20 Flanges Weld neck Blind

ASME Flanges /

We are a leading manufacturer, supplier, and exporter of ASTM B462 UNS N08020 Alloy 20 Flanges,

UNS N08020 Flange Standards & Dimensions

Standard: ASTM B462 / ASME SB462

Size Range: ½” to 48” (DN15 – DN1200)

Pressure Class: 150, 300, 600, 900, 1500, 2500 LB

Facing Types: RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint)

Dimension Standards: ASME B16.5, ASME B16.47, MSS-SP-44

ASTM B462 UNS N08020 Alloy 20 Flanges Weld neck Blind Read More »

ASTM A182 F321 Weld neck flanges ASME B16.5

ASTM A182 F321 FLANGES  | Weld neck flange Blind Flange ASME B16.5

ASME Flanges /

manufacturer and exporter of ASTM A182 F321 Weld Neck Flanges,
Standard Description
Manufacturing Standard”ASTM A182 / ASME SA182
Grade:F321 / UNS S32100 / WNR 1.4541
Flange Type:Weld Neck (WN)
Design Standard ASME B16.5 / ASME B16.47 / MSS SP-44
Size Range ½” to 48” (DN15–DN1200)
Facing Types RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint)

ASTM A182 F321 FLANGES  | Weld neck flange Blind Flange ASME B16.5 Read More »

ASTM-A105-LONG-WELD-NECK-FLANGE-ASME-B16.5

ASME B16.5 Long Weld Neck Flange Dimension and Specification

ASME Flanges /

We are a trusted manufacturer and exporter of Long Weld Neck (LWN) Flanges designed according to ASME B16.5 and ASME B16.47 standards.

Dimensions – ASME B16.5 Long Weld Neck Flanges

Long weld neck flange dimensions generally follow ASME B16.5 (½” to 24”) standards for pressure classes:

Class Ratings: 150, 300, 400, 600, 900, 1500, and 2500 LB

Nominal Pipe Sizes (NPS): ½” to 24” (larger sizes available in ASME B16.47)

Facing Types: Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF on request)

ASME B16.5 Long Weld Neck Flange Dimension and Specification Read More »

ASTM-B564-Inconel-601-flange-N06601-Weld-neck-Flange

ASTM B564 Inconel 601 flange N06601 Weld neck Flanges

ASME Flanges /

ASTM B564 Inconel 601 flange N06601 Weld neck Flanges
INCONEL® nickel-chromium-iron alloy 601 (UNS N06601/W.Nr. 2.4851) is a general-purpose engineering material for applications that require resistance to heat and corrosion. An outstanding characteristic of INCONEL alloy 601 is its resistance to high- temperature oxidation. Our flanges are manufactured in compliance with ASTM B564 / ASME SB564 standards and are available in various types, sizes, and pressure classes.

ASTM B564 Inconel 601 flange N06601 Weld neck Flanges Read More »

ASTM B564 N08810 Weld neck Flange

ASTM B564 UNS N08810 Flange Incoloy 800H Weld neck Flange

ASME Flanges, Incoloy /

ASTM B564 UNS N08810 Weld Neck Flange Manufacturer & Supplier We manufacture and supply ASTM B564 UNS N08810 weld neck flanges, also known as Incoloy 800H weld neck flanges, designed for use in high-temperature and corrosive service conditions. Produced in accordance with ASME, ANSI, DIN, EN, and MSS-SP standards, these flanges provide excellent strength, corrosion

ASTM B564 UNS N08810 Flange Incoloy 800H Weld neck Flange Read More »

Socket Weld Flange ASME B16.5

Socket Weld Flange | SW Flange Raised Face

ASME Flanges, Flanges /

Socket Weld Flange | SW Flange Raised Face

Socket Weld Flange also known as SW flange,features a bore and a counter-bore. The pipe fits into the counter-bore (socket), and a fillet weld is applied at the outer edge of the hub. The design ensures smooth bore alignment with the pipe, minimizing flow restrictions.

Connection: Socket + fillet weld (no need for beveling the pipe)

Size Range: Typically from ½” to 4” (up to 6” available)

Pressure Classes: Class 150, 300, 600, 900, 1500

Face Types: Raised Face (RF), Flat Face (FF),Ring Joint

ASME B16.5

Socket Weld Flange | SW Flange Raised Face Read More »