ASTM B16.5 A182 F53 GR2507 LAPJOINT Flange 50NB CL600
ASTM B16.5 A182 F53 GR2507 LAPJOINT Flange 50NB CL600
ASTM B16.5 A182 F53 GR2507 LAPJOINT Flange 50NB CL600
ASTM B16.5 A182 F53 GR2507 LAPJOINT Flange 50NB CL600
ASTM B16.5 A182 F53 GR2507 LAPJOINT Flange 50NB CL600
ASTM B16.5 A182 F53 GR2507 LAPJOINT Flange 50NB CL600
US $21.8
LAPJOINT Flange 2" CL600
1 piece

Item specifics

ASTM B16.5
LapJoint Flange



Quick Details

  • Size: 2" (DN50)
  • Material: 2507 (F53)
  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: Footo
  • Standard or Nonstandard: Standard
  • Technics: Forged
  • Standard: ASTM B16.5
  • Type: 2507 LapJoint Flange

Packaging & Delivery

Packaging Details:Seaworthy plywood case or as customer requests
Delivery Detail:2 - 10 days after receiving the deposit


ASTM B16.5 A182 F53 GR2507 LAPJOINT Flange 50NB CL600
1. Material: SDUP 2507 (F53), etc
2. Size: 2" (DN50)
3. Standard: ASTM B16.5, etc

4. Pressure: 600#, etc

Footo MFG supplies ASTM B16.5 A182 F53 GR2507 LAPJOINT Flange, 50NB, CL600.

About Super Duplex Stainless Steel 2507 (F53)

2507 is the most common Super Duplex Stainless Steel which contains 24% chromium and a minimum of 3% molybdenum. Please refer to the chemical composition and mechanic properties tables below.

Chemical Composition



GR2507 LAPJOINT Flange


2" (DN50)


SO, WN, SW, TH, LJ, BL, PL, etc


Carbon Steel: ASTM: SA105N/A105, ASTM SA350 LF2,etc

Stainless Steel: ASTM A182 F304/304L/316/316L, etc

Alloy Steel: ASTM A182 F1/F5/F9/F11/F22/F91, Etc.

Duplex stainless steel: ASTM A182 F51, etc

Super Duplex Stainless Steel: S32750/2507/F53/F55, UNS32760, etc

Nicke alloys: Nickel 200, Monel 400, Inconel 600/625, Incoloy 825/800, 

                     Hastelloy C276, Hastelloy C276, Hastelloy B1/B2/B3, Alloy 20, etc

Cu-Ni: 90/10,70/30, etc


Petroleum,chemical,power,gas,metallurgy, shipbuilding, construction, etc

About: A182 F53 GR2507 LAPJOINT Flange

2507 Lap Joint Flange (LJ Flanges) or 2507 Loose flange (2507 LF flange) called are used on piping fitted with lapped pipe or with lap joint stub ends the combined initial cost of the two items being approximately one-third higher than that of comparable welding neck flanges. Their pressure-holding ability is little, if any, better than that of slip-on flanges and the fatigue life of the assembly is only one-tenth that of welding neck flanges. The f53 lap joint flanges with the stub end assembly are normally used in systems requiring frequent dismantling for inspection and cleaning and where the ability to swivel flanges and to align bolt holes materially eases the erection of large diameter or unusually stiff piping. 2507 Lap Joint flanges have certain special advantages: Freedom to swivel around the pipe facilitates the lining up of opposing flange bolt holes. Lack of contact with the fluid in the pipe often permits the use of inexpensive carbon steel flanges with corrosion resistant pipe. In systems which erode or corrode quickly, the flanges may be salvaged for re-use.

Slip on flanges with a hub have published specifications that range from 1/2" thru 24".  Sizes above 24" are produced as lap joints to slip on dimensions.  Footo Mfg provides 2507 Lap Joint flanges in all material grades, specifications and sizes.

Footo Mfg manufactures lap joint flanges in all steel material grades, including Super duplex stainless steel lap joint flanges, stainless steel lap joint flanges and alloy lap joint flanges.  Footo Mfg also has many different lap joint flanges in stock and ready to ship.  Footo Mfg can also manufacture custom pipe flanges according to customer specifications.

Materials For Lap Joint Flange

The most common materials used in flanges produced is carbon steel, super duplex stainless steel, duplex stainless steel, stainless steel, cast iron, aluminium, brass, bronze, plastic etc.

In addition, flanges, like fittings and pipes, for specific purposes sometimes internally equipped with layers of materials of a completely different quality as the flanges themselves, which are "lined flanges".

The material of a flange, is basically set during the choice of the pipe, in most cases, a flange is of the same material as the pipe.

Installation of 2507 LAPJOINT Flange

Center the gasket on the flange. This is extremely vital where raised faces are involved. Note: standard ANSI ring gaskets, when cut properly, should center themselves with the bolts in place.

Use a torque wrench and well-lubricated fasteners with hardened flat washers to ensure correct initial loading.

Tighten bolts to compress gasket uniformly. This means going from side to side around the joint, in a star-like crossing pattern.

All bolts should be tightened in one-third increments, according to proper bolting patterns. Retorque 12 to 24 hours after start-up, whenever possible.

All applicable safety standards including lockout/tagout procedure should be observed.

Never use liquid or metallic based anti-stick or lubricating compounds on the gaskets. Premature failure could occur as a result.

APPLICATIONS Of 2507 LAPJOINT Flange:                           

1. petrochemical industry

2. Pharmaceutical industry 

3. Food industry

4. Aviation and aerospace industry

5. Architectural decoration industry

6. Oil and gas industry

Other Features: 

1) Chemical and Physical characteristic: durable, corrosion resistant and high-temperature resistant

2) We also produce flange with special specifications according to customers’ requirements;


1) Packing Method:

Normal packing: Plastic film or bubble paper wrapped, endings protect  by caps,

then into wooden case or load on fumigation plywood pallet.

Custom product: As per your request.

Flanges Packing

2) Shipping:

By Sea, By Air, By Train or River-and-Sea Coordinated Transport, according to your request.

Where can we find the high quality ASTM B16.5 A182 F53 GR2507 LAPJOINT Flange 50NB CL600.

You can visit this website:

If any inquiry about products, please feel free to contact us