Flange Face and Finish

Flanges Face Types, Flange Face Finish Types.

Marcel Piping Projects Supply PVT LTD is a ISO 9001:2015 Certified Manufacturers, Stockists, Suppliers, and Exporters of Flanges in all types of flange faces and finish. The flange face is the outside area that hosts the gasket. The available types of flange face are ring joint flange, flat, raised, male and female flange, lap joint flange, tongue and groove flange. Flanges with different faces require different gaskets and shall never be copulated to help leakage of the joint.

The ASME B 16.5 constitution requires that the flange face i.e. flat face flange and raised face flange has a specific roughness to guarantee that this surface be compatible with gasket and supply a high quality seal. A serrate finish, is needed with 30 to 55 groove per inch and resultant roughness between the 125 and 500 micro elevation. This is allow for varied grades of surface finish to be made available by flanges manufacture for the gasket contact surface of raw material flange. The most used outside are Stock Finish, Concentric Serrated, Spiral Serrated, Smooth Finish or Face, and Cold Water Finish.

We are largest exporters of flanges in USA, UK, Qatar, Mexico, Nigeria, Saudi Arabia, Kuwait, Iran, Kazakhstan, Bahrain, Vietnam, Indonesia, Norway, Ghana, Colombia, Azerbaijan, Libya.

We are ISO Certified Manufacturer and Stockist of Raised Face and Flat Face Flanges in Stainless Steel, Carbon Steel, Mild Steel, Alloy Steel, Duplex Steel, Super Duplex Steel, Hastelloy, Monel, Copper Nickel, Inconel, Incoloy, Nickel Alloy, Alloy 20, 254 Smo, Titaniun, Bronze, Aluminium, Brass at Reasonable Price.

Flanges Face Types
Flanges Manufacturers
Flange Face Finish Types
Flanges Suppliers

We are Leading Exporter and Supplier of Flanges Face Types includes Raised Face(RF), Flat Face(FF), Ring Joint(RTJ), Lap Joint, Tongue and Groove(T&G), Male and Female(M&F), Flange Face Finish Types includes Stock Finish, Spiral Serrated, Concentric Serrated, Smooth Finish Or Face, and Cold Water Finish.

Flange Face Finish Types FACE SURFACE FINISH

Types of Flange Facing Finish STOCK FINISH

It is the most widely used of any flange surface finish, because practically, is suitable for all ordinary service conditions. Under compression, the soft face from a gasket will embed into this finish, which helps create a seal, and a high level of friction is generated between the mating surfaces. The finish for these flanges is generated by a 1.6 mm radius round-nosed tool at a feed rate of 0.8 mm per revolution up to 12 inch. For sizes 14 inch and larger, the finish is made with 3.2 mm round-nosed tool at a feed of 1.2 mm per revolution.

SPIRAL SERRATED

This is also a continuous or phonographic spiral groove, but it differs from the stock finish in that the groove typically is generated using a 90-° tool which creates a “V” geometry with 45° angled serration.

CONCENTRIC SERRATED

As the name suggests, this finish is comprised of concentric grooves. A 90° tool is used and the serrations are spaced evenly across the face.

SMOOTH FINISH

This finish shows no visually apparent tool markings. These finishes are typically utilized for gaskets with metal facings such as double jacketed, flat steel and corrugated metal. The smooth surfaces mate to create a seal and depend on the flatness of the opposing faces to effect a seal. This is typically achieved by having the gasket contact surface formed by a continuous (sometimes called phonographic) spiral groove generated by a 0.8 mm radius round-nosed tool at a feed rate of 0.3 mm per revolution with a depth of 0.05 mm. This will result in a roughness between Ra 3.2 and 6.3 micrometers (125 – 250 micro inch).

Flange Face Types ASME B16.5 and ASME B16.47

Flange Face Types RAISED FACE FLANGE (RF)

A raised face flange (RF) is easy to recognize as the gasket surface area is positioned above the bolting line of the flange. A raised face flange is compatible with a wide range of flange gaskets, ranging from flat to semi-metallic and metallic types (as, for example, jacketed gaskets and spiral wound gaskets), either ring or full face.

FLAT FACE FLANGE (FF)

Flat face flanges (FF) have a contact surface having the same height as the bolting line of the flange. Full face gaskets, generally of the soft type, are used between two flat face flanges. According to ASME B31.3, a flat face flange should never be mated with a raised face flange as the resulting flanged joint would definitely leak.

RING JOINT FLANGE (RTJ)

A ring joint flanges (RTJ) is used when a metal-to-metal seal between the mating flanges is required (which is a condition for high-pressure and high-temperature applications, i.e. above 700/800 C°). A ring joint flange features a circular groove to accommodate a ring joint gasket (oval, or rectangular). RTJ flanges can be sealed by RTJ gaskets of different styles (R, RX, BX) and profiles (example: octagonal/oval for the R style).

LAP JOINT FLANGE

A lap joint flange has a flat face, which is not used to seal the flanged joint but simply hosts the back of a stub end. The sealing surface is actually on the stub end itself and may be either flat face or raised face.

TONGUE AND GROOVE FLANGE (T AND G)

Two tongue and groove flanges (T&G face) perfectly fit one into the other: one flange has a raised ring, the other a groove and they can be mated easily (the tongue enters the groove and seals the joint).

MALE AND FEMALE FLANGE (M AND F)

Similarly to tongue and groove flanges, male and female flanges (M&F face type) match one to the other as well. One flange has an area extended beyond its face area, the male flange, the other flange has a matching depression machined on the facing surface, the female flange. The female face is 3/16” deep, while the male face is 1/4″ high, and both of them are smooth finished. The outer diameter of the female face retains the gasket.

Flange Specifications

Size Range 1/2″ (15 NB) to 48″ (1200NB)
Class / Pressure Rating 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Standards / Dimensions ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, BS, GOST, MSS SP-44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605
Flange Face Types / Connection Type Flat Face Flange (FF), Raised Face Flange (RF), Ring Joint Flange (RTJ), Lap Joint Flange, Male and Female Flange (M&F), Large and Small Tongue-and-Groove Flange (T&G)
Face Finish Types Stock Finish, Spiral Serrated, Concentric Serrated, Smooth Finish Or Face, and Cold Water Finish
Custom Design As per your drawing | AS, BS, ANSI, DIN, JIS | Equal and Reducing Configurations
Material Test Certificates (MTC) As per EN 10204 3.2 and EN 10204 3.1, Test Certificates certifying NACE MR0175, NACE MR0103
Test Certificates 100% Radiography Test Report, EN 10204/3.1B, Raw Materials Certificate, Third Party Inspection Report, etc
Tests Hydrostatic testing machine, Direct-reading Spectrograph, UI trasonic flaw detector, X-ray detector, Magnetic particle detector
Equipment / Machines Press machine, Pushing Machine, Bending machine, Sand-blasting machine, electric bevelling machine, etc.
Coating Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Origin Indian / USA / Japan / West Europe / Korean
Applications/Usage Offshore, Oil Field, Shipbuilding, Water System, Natural Gas, Pipe Projects, Electric Power, etc.
Top Export Network USA, UK, Qatar, Mexico, Nigeria, Saudi Arabia, Kuwait, Iran, Kazakhstan, Bahrain, Vietnam, Indonesia, Norway, Ghana, Colombia, Azerbaijan, Libya.

Flange Material Grades Flange Material Standard

Stainless Steel ASTM/ASME A/SA182:- F304, F304L, F316, F316L, ASTM/ASME A/SA351:- CF3, CF3M, CF8, CF8M, DIN 1.4306, DIN 1.4301, DIN 1.4404, DIN 1.4401, DIN 1.4408, DIN 1.4308, DIN 1.4306, DIN 1.4409
Duplex Steel S31803 / S32205 A182:- Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex Steel S32750 / S32760 A182:- Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Copper Nickel Steel ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Titanium ASTM B381 / ASME SB381:- Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7
ASTM  R50250/GR.1 | R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 |R52400/GR.7 | R53400/GR.12 | R56320/GR.9 | R56400/GR.5
Copper Steel TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000, C12200, C12300, T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910, C10920, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Incoloy Steel ASTM B564 / ASME SB564:- Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925
Inconel Steel ASTM B564 / ASME SB564:- Inconel 600, 601, 625, 718, 783, 690, x750
Nickel Steel ASTM B564 / ASME SB564:- Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
Hastelloy Steel ASTM B564 / ASME SB564:- Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X
Monel Steel ASTM B564 / ASME SB564:- Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Carbon Steel ASTM/ASME A/SA105 A/SA105N and A/SA216-WCB, DIN 1.0460, DIN 1.0402, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, CS High Yield ASTM A694 / A694 (F52, F56, F60, F65, F70, F80)
Alloy Steel ASTM A182 / ASME SA182:- F5, F9, F11, F12, F22, F91
Alloy 20 ASTM B462 / ASME SB462:- Carpenter® 20 Alloy, Alloy 20Cb-3
254 SMO ASTM A182 / ASME SA182:- SMO 254/6Mo, UNS S31254, DIN 1.4547
Aluminium 5052 /6061/ 6063 / 2017 / 7075 / etc.
Brass 3602 / 2604 / H59 / H62 / etc.
Other material Tin bronze, Alumunum bronze, Lead bronze, Nimonic 75, Nimonic 80A, Nimonic 90, AISI 4140, AISI 4130, Mild Steel, Al6XN Flanges

Flange Standards Flange Standard Dimensions

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Note: Flanges Prices are depended on Material Grades, Standards, Dimensions, Sizes, Order Quantity, etc. Prices Mentioned on website are for referance purpose only. To get market leading prices for flanges contact us now.

Flange Industries and Applications Flange Applications

  • Pumps, Valves, and vessels in manufacturing and food processing.
  • Pipe connections in industrial waterworks.
  • Heat exchangers and heating systems of all sizes.
  • Mining support.
  • Nuclear power systems.
  • Plumbing and mechanical systems.
  • Assemblies in the oil, gas, and petrochemical industries.
  • Fire protection systems.

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