Stainless Steel Groove & Tongue Flanges, Alloy Steel Groove & Tongue Flanges Manufacturer & Exporter | ASME B16.5, ASME B16.47, MSS SP44, ASTM A182, 240, 105, 350, SB564, 160, 472 Groove & Tongue Flanges Suppliers

Amardeep Steel is one of India's leading Manufacturers, Suppliers and Exporters of high-quality Tongue & Groove Flanges based in Mumbai. In a tongue and groove flange assembly, one flange face carries a raised ring (the Tongue) machined onto its face, while the mating flange has a matching depression (the Groove) machined into its face. This interlocking design ensures superior alignment and a tight, leak-proof seal making tongue and groove flanges the preferred choice for pump covers, valve bonnets and high-pressure piping systems. Our Tongue Flanges are available in a wide range of sizes, grades and specifications to meet every industrial requirement.
Table of Contents
What Are ASME B16.5 Tongue & Groove Flanges?
ASME B16.5 Tongue & Groove Flanges are a type of pipe flange face configuration governed by the ASME/ANSI B16.5 standard. The standard specifies pressure-temperature ratings, materials, tolerances, marking, and testing for pipe flanges. Unlike raised-face or flat-face flanges, the tongue and groove flange design confines the gasket entirely within the groove, preventing blowout and minimising gasket contact with the process fluid. This makes them especially effective in high-pressure and high-temperature applications such as oil & gas, chemical processing, and power generation.
Both Large Tongue & Groove and Small Tongue & Groove variants are produced in accordance with ASME B16.5 and B16.47 Series A & B. Our tongue and groove flanges are self-aligning and prevent direct contact of the gasket with the inner fluid, offering outstanding corrosion resistance across all grades.
ASME B16.5 Tongue & Groove Flanges Specifications
| Parameter | Details |
|---|---|
| Size Range | 1/2" (15 NB) to 60" (1500 NB) |
| Pressure Class | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS; DIN ND-6, 10, 16, 25, 40 |
| Standards | ANSI B16.5, ANSI B16.47 (Series A & B), MSS SP44, ANSI B16.36, ANSI B16.48, API-605, AWWA |
| DIN Standards | DIN2527, DIN2566, DIN2573, DIN2576, DIN2627-2638, DIN2641, DIN2642, DIN2655, DIN2656, DIN2673 |
| BS Standards | BS4504, BS1560, BS10 |
| Face Types | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Tongue & Groove, Small Tongue & Groove |
| Coating / Surface Treatment | Anti-rust Paint, Oil Black Paint, Zinc Plated, Yellow Transparent, Cold & Hot Dip Galvanized |
| Test Certificates | EN 10204/3.1B, Raw Material Certificate, 100% Radiography, Third-Party Inspection, NACE MR0103, NACE MR0175 |
| Production Technique | Forged, Heat Treated, and Machined |
Types of Tongue & Groove Flanges
Amardeep Steel manufactures the following types of Tongue & Groove Flanges:
Material Grades of Tongue & Groove Flanges
Stainless Steel Tongue & Groove Flanges
Available at Amardeep Steel in grades: ASTM A182 F304/304L, F310, F316/316L, F316Ti, F321/H, F347/H, F410, F440, 904L. Explore our full range of Stainless Steel Flanges.
Carbon Steel Tongue & Groove Flanges
Grades: ASTM A105, ASTM A350 LF2/LF3, ASTM A694 F52/F60/F65/F70, A516 Gr.70, A36. View our Carbon Steel Flanges range.
Alloy Steel Tongue & Groove Flanges
Grades: ASTM A182 / ASME SA182 F1, F5, F9, F11, F12, F22, F91. See Alloy Steel Flanges.
Duplex & Super Duplex Steel Tongue & Groove Flanges
Grades: ASTM / ASME SA182 F44, F45, F51, F53, F55, F60, F61 (S31803, S32205, S32750, S32760). View Duplex Steel Flanges and Super Duplex Stainless Steel Flanges.
Nickel Alloy & Special Grade Tongue & Groove Flanges
Grades include: Nickel 200/201, Monel 400/500, Inconel 600/601/625/800/825, Hastelloy C276/C22, Alloy 20. Explore: Monel Flanges | Inconel Flanges | Hastelloy Flanges | Nickel Alloy Flanges.
Copper Nickel Tongue & Groove Flanges
Grades: UNS C70600 (Cu-Ni 90/10), C71500 (Cu-Ni 70/30), C10100-C12200. View Copper Nickel Flanges.
Titanium & Aluminium Tongue & Groove Flanges
Titanium grades: ASTM B381 Gr.1, Gr.2, Gr.4, Gr.5, Gr.7 | Aluminium: 5052, 6061, 6063, 7075. See Titanium Flanges and Aluminium Flanges.
ASME B16.5 Tongue & Groove Flange Dimensions
The table below lists standard ASME B16.5 Tongue and Groove Flange dimensions for sizes 1/2" to 24". All dimensions are in inches with millimetres in parentheses.
| DN | d1 | d2 | d3 | d4 | d5 | d6 | d7 | d8 | f1 | f2 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 1.38 | 1.44 | 1.38 | 1.44 | 1.00 | 0.94 | 1.81 | 1.75 | 0.25 | 0.19 |
| 3/4" | 1.69 | 1.75 | 1.69 | 1.75 | 1.31 | 1.25 | 2.12 | 2.06 | 0.25 | 0.19 |
| 1" | 2.00 | 2.06 | 1.88 | 1.94 | 1.50 | 1.44 | 2.44 | 2.25 | 0.25 | 0.19 |
| 1-1/4" | 2.50 | 2.56 | 2.25 | 2.31 | 1.88 | 1.81 | 2.94 | 2.62 | 0.25 | 0.19 |
| 1-1/2" | 2.88 | 2.94 | 2.50 | 2.56 | 2.12 | 2.06 | 3.31 | 2.88 | 0.25 | 0.19 |
| 2" | 3.62 | 3.69 | 3.25 | 3.31 | 2.88 | 2.81 | 4.06 | 3.62 | 0.25 | 0.19 |
| 2-1/2" | 4.12 | 4.19 | 3.75 | 3.81 | 3.38 | 3.31 | 4.56 | 4.12 | 0.25 | 0.19 |
| 3" | 5.00 | 5.06 | 4.62 | 4.69 | 4.25 | 4.19 | 5.44 | 5.00 | 0.25 | 0.19 |
| 4" | 6.19 | 6.25 | 5.69 | 5.75 | 5.19 | 5.12 | 6.62 | 6.19 | 0.25 | 0.19 |
| 5" | 7.31 | 7.38 | 6.81 | 6.88 | 6.31 | 6.25 | 7.75 | 7.31 | 0.25 | 0.19 |
| 6" | 8.50 | 8.56 | 8.00 | 8.06 | 7.50 | 7.44 | 8.94 | 8.50 | 0.25 | 0.19 |
| 8" | 10.62 | 10.69 | 10.00 | 10.06 | 9.38 | 9.31 | 11.06 | 10.62 | 0.25 | 0.19 |
| 10" | 12.75 | 12.81 | 12.00 | 12.06 | 11.25 | 11.19 | 13.19 | 12.75 | 0.25 | 0.19 |
| 12" | 15.00 | 15.06 | 14.25 | 14.31 | 13.50 | 13.44 | 15.44 | 15.00 | 0.25 | 0.19 |
| 14" | 16.25 | 16.31 | 15.50 | 15.56 | 14.75 | 14.69 | 16.69 | 16.25 | 0.25 | 0.19 |
| 16" | 18.50 | 18.56 | 17.62 | 17.69 | 16.75 | 16.69 | 18.94 | 18.50 | 0.25 | 0.19 |
| 18" | 21.00 | 21.06 | 20.12 | 20.19 | 19.25 | 19.19 | 21.44 | 21.00 | 0.25 | 0.19 |
| 20" | 23.00 | 23.06 | 22.00 | 22.06 | 21.00 | 20.94 | 23.44 | 23.00 | 0.25 | 0.19 |
| 24" | 27.25 | 27.31 | 26.25 | 26.31 | 25.25 | 25.19 | 27.69 | 27.25 | 0.25 | 0.19 |
* Dimensions in inches. Contact us for complete dimensional data per class/series.
ANSI B16.5 Class 150 Large Tongue & Groove Flanges Dimensions
| NPS (in) | Tongue ID (in) | Tongue OD (in) | Gasket Area (sq.in.) | No. of Bolts | Bolt Size (in) | Bolt Torque (ft.lbs.) | Max Gasket Stress Avail. (psi) | Min Rec'd Torque/Bolt (ft.lbs.) | Max Rec'd Torque/Bolt (ft.lbs.) |
|---|---|---|---|---|---|---|---|---|---|
| 0.5 | 1.00 | 1.38 | 0.71 | 4 | 0.50 | 60 | 42594 | 7 | 14 |
| 1 | 1.50 | 2.00 | 1.37 | 4 | 0.50 | 60 | 22013 | 13 | 27 |
| 2 | 2.88 | 3.62 | 3.78 | 4 | 0.63 | 120 | 12839 | 45 | 93 |
| 4 | 5.19 | 6.19 | 8.93 | 8 | 0.63 | 120 | 10854 | 53 | 120 |
| 6 | 7.50 | 8.50 | 12.56 | 8 | 0.75 | 200 | 11541 | 83 | 200 |
| 8 | 9.38 | 10.62 | 19.47 | 8 | 0.75 | 200 | 7446 | 129 | 200 |
| 12 | 13.50 | 15.00 | 33.56 | 12 | 0.88 | 320 | 8990 | 171 | 320 |
| 16 | 16.75 | 18.50 | 48.42 | 16 | 1.00 | 490 | 10923 | 215 | 490 |
| 24 | 25.25 | 27.25 | 82.43 | 20 | 1.25 | 1000 | 13525 | 355 | 1000 |
ASME B16.5 Groove & Tongue Flanges Price List
| SR NO | QTY | Description | Approx. Price Per Piece (USD $) |
|---|---|---|---|
| 1 | 32 | 2" Class 300 XH RF Tongue & Groove Flange, Carbon Steel A/SA105 | $6.40 |
| 2 | 80 | 2" Class 600 XH RF Tongue & Groove Flange, Carbon Steel A/SA105 | $8.20 |
| 3 | 200 | 4" Class 150 STD RF Tongue & Groove Flange, Carbon Steel A/SA105 | $10.90 |
| 4 | 35 | 4" Class 300 XH RF Tongue & Groove Flange, Carbon Steel A/SA105 | $16.10 |
| 5 | 100 | 4" Class 600 XH RF Tongue & Groove Flange, Carbon Steel A/SA105 | $33.80 |
Please note: The above prices are indicative prices for ANSI / ASME B16.5 Tongue & Groove Flanges in India and may vary based on material grade, size, pressure class, quantity, and market conditions. For the latest Tongue & Groove Flanges price list and an exact quotation, please contact our sales team via email.
Tongue & Groove Flanges Applications & Industries
Tongue & Groove Flanges by Amardeep Steel are used across diverse industries:
- Chemical Industry: Large & Small Tongue & Groove Flanges for corrosive fluid handling.
- Oil & Gas Pipelines: Stainless Steel Tongue & Groove Flanges for high-pressure crude oil & gas lines.
- Power Plants: ANSI B16.5 Tongue & Groove Flanges for steam and condensate systems.
- Plumbing & Water Supply: Large Tongue & Groove Flanges for water distribution systems.
- Food Processing: Stainless Steel Tongue & Groove Flanges for hygienic piping.
- Paper & Pulp Industry: Alloy Steel Tongue & Groove Flanges for pulp digesters and bleach lines.
- Petrochemical & Refinery: Nickel Alloy Tongue & Groove Flanges for acid and solvent service.
- Nuclear & Heavy Industry: Duplex & Super Duplex Tongue & Groove Flanges for ultra-high-pressure duty.
- Structural & Fabrication: Carbon Steel Groove & Tongue Flanges for general fabrication.
- Heating Systems: Copper Nickel Tongue & Groove Flanges for heat exchangers.
All Flange Types
Explore our complete range of flange types:
- Slip-on Raised Face Flanges
- Blind Raised Face Flanges
- Weld Neck Raised Face Flanges
- Socket Weld Raised Face Flanges
- Screwed/Threaded Flanges
- Orifice Flanges
- Spectacle Blind Flanges
- Reducing Flanges
- Ring Type Joint Flanges
- Groove & Tongue Flanges
- Plate Flanges
- Flat Face Flanges
- ANSI / ASME / ASA B16.5 Flanges
- EN 1092-1 Flanges
- DIN Flanges
- BS 10 Flanges
- BS 4504 Flanges
- JIS STD Flanges
- EIL Approved Flanges
Why Choose Amardeep Steel for Tongue & Groove Flanges?
- ISO Certified Manufacturer: All Tongue & Groove Flanges are produced under ISO-certified quality management systems.
- Wide Grade Coverage: Stainless Steel, Carbon Steel, Alloy Steel, Duplex, Nickel Alloy, Copper Nickel, Titanium & more.
- Full Size Range: 1/2" (15 NB) to 60" (1500 NB) NB in all pressure classes from 150 LBS to 2500 LBS.
- Multi-Standard Compliance: ASME B16.5, ASME B16.47, MSS SP44, DIN, BS, EN 1092-1, JIS, AWWA and more.
- In-House Testing: Direct-reading spectrograph, hydrostatic testing, X-ray detector, ultrasonic flaw detector, magnetic particle detector.
- Global Exports: Supply to 65+ countries including USA, UAE, Saudi Arabia, Germany, UK, Singapore, and more.
- Fast Lead Times: Large stock maintained in Mumbai for immediate dispatch.
- Custom Fabrication: Special-purpose Tongue & Groove Flanges as per customer drawings.
Frequently Asked Questions - Tongue & Groove Flanges
What is a Tongue & Groove Flange?
A Tongue & Groove Flange is a type of flange face configuration in which one flange (the Tongue) has a raised ring machined onto its face, and the mating flange (the Groove) has a matching recess. When bolted together, the tongue fits precisely into the groove, confining the gasket and creating a leak-proof joint without the gasket contacting the process fluid.
What is the difference between Large Tongue & Groove and Small Tongue & Groove Flanges?
The Large Tongue & Groove Flanges have a larger gasket seating area and are typically used for higher pressure or larger bore applications. Small Tongue & Groove Flanges have a narrower seating area and are used in lower-pressure or smaller-bore piping. Both types are specified under ASME B16.5.
Which standard governs Tongue & Groove Flange dimensions?
Dimensions for Tongue & Groove Flanges are governed primarily by ASME B16.5 (sizes NPS 1/2" to 24") and ASME B16.47 Series A & B (sizes NPS 26" to 60"). Additional standards include MSS SP-44, API 605, and AWWA C207.
What materials are available for Tongue & Groove Flanges at Amardeep Steel?
Amardeep Steel manufactures Tongue & Groove Flanges in Stainless Steel (304/316/321/347/904L), Carbon Steel (A105/A350), Alloy Steel (F5/F9/F11/F22/F91), Duplex & Super Duplex Steel, Nickel Alloys (Inconel, Monel, Hastelloy), Copper Nickel, Titanium, and Aluminium.
What pressure classes are available?
We supply Tongue & Groove Flanges in Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, and 2500 LBS as per ANSI/ASME standards, and PN6 through PN64 as per DIN/EN standards.
What are the common applications of Tongue & Groove Flanges?
Common applications include chemical processing, oil & gas pipelines, power plants, water supply systems, food processing, paper & pulp, heating systems, and nuclear power facilities.
Can Tongue & Groove Flanges be ordered in custom sizes?
Yes. Amardeep Steel Centre manufactures Tongue & Groove Flanges to custom drawings and non-standard sizes. Contact our sales team with your requirements.
Request a Quote for Groove & Tongue Flanges
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