THREADED
FLANGES
CONTENTS
Overview
Threaded Flanges — Manufacturers & Suppliers in India
Manibhadra Metals is a leading manufacturer and supplier of ASME B16.5 Threaded Flanges (Screwed Flanges) in India, offering precision-engineered flanges for piping systems where welding is impractical, restricted, or not permitted. A threaded flange connects directly to externally threaded pipe ends without the need for welding, making installation and maintenance faster while eliminating hot work. For applications requiring additional joint integrity, a seal weld may be applied after assembly.
Our ANSI B16.5 Threaded Flanges are manufactured in ½″ (15 NB) to 48″ (1200 NB) sizes and Class 150, 300, 400, 600, 900, 1500, and 2500 pressure ratings, in accordance with ASME, ANSI, DIN, EN, BS, JIS, ISO, API, MSS, and other international standards. Available in Stainless Steel, Carbon Steel, Alloy Steel, Duplex, Super Duplex, Inconel, Monel, Hastelloy, Titanium, Nickel, and other special alloys, every flange is supplied with EN 10204 3.1/3.2 Material Test Certificates (MTC) and manufactured to meet stringent international quality requirements.
ASME B16.5 specifies dimensional tolerances, pressure-temperature ratings, materials, testing, marking, and flange drilling requirements using both metric and U.S. Customary units. In accordance with ASME B31.3, when threaded steel pipe is used for steam service above 250 psi or water service above 100 psi at temperatures exceeding 220°F (104°C), seamless pipe with a minimum Schedule 80 wall thickness as specified in ASME B36.10 should be used. These threaded flanges are widely used in oil & gas, petrochemical, chemical processing, power generation, marine, water treatment, fire protection, and industrial piping systems, providing a reliable, leak-resistant connection where welding is undesirable or impossible.
| Quick Specification Reference | |
|---|---|
| Size Range | ½″ (15 NB) to 48″ (1200 NB) • DN10–DN5000 |
| Standards | ASME B16.5, ASME B16.47, ASME B16.48, EN 1092-1, DIN, BS, JIS, ISO 7005-1, API, MSS SP-44, AWWA & GOST |
| ANSI Pressure Class | Class 150, 300, 600, 900, 1500 & 2500 |
| DIN Pressure Rating | PN6, PN10, PN16, PN25, PN40 & PN64 |
| JIS Rating | 5K, 10K, 16K, 20K, 30K, 40K & 63K |
| Surface Finish | Black Paint, Anti-rust Paint, Zinc Plated, Yellow Passivation, Cold & Hot Dip Galvanized |
| Common Types | Forged, Screwed, NPT, BSP, Plate & Reducing Threaded Flanges |
| Manufacturing | Forged, Heat Treated & CNC Machined |
| Face Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), LMF, SMF, Lap Joint Face (LJF), Tongue & Groove |
| Configurations | Equal & Reducing Threaded Flanges |
| Testing | PMI, Hydrostatic, Ultrasonic (UT), Radiography (RT), Magnetic Particle Inspection (MPI) & Spectro Analysis |
| Certificates | EN 10204 3.1 / 3.2, MTC, NACE MR0103, NACE MR0175 & Third Party Inspection |
| Equipment | Press, Bending, Pushing, Bevelling & Sand Blasting Machines |
| Origin | India, Western Europe, Japan, USA & South Korea |
| Available Standards | ANSI, ASME, DIN, EN, BS, JIS, API, MSS, GOST, UNI & AWWA |
| BS Standards | BS 4504, BS 3293, BS 1560 & BS 10 |
| AS 2129 | Table D, Table E & Table H |
| DIN Standards | DIN 2527, 2566, 2573, 2576, 2627–2638, 2641, 2642, 2655 & 2656 |
| Other Standards | EN 1092-1, GOST 12820, JIS B2220, KS B1503, SABS 1123, UNI 2276 & NFE 29203 |
| Material Certification | EN 10204 3.1 / 3.2 with NACE MR0103 / MR0175 certification available on request |
PRICE TABLE
Threaded Flange Reference Price Chart
The prices listed above are indicative and subject to change based on quantity, material grade, and market conditions. For an accurate quotation on Threaded Flanges, please contact our sales team directly.
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| Sr. No. | Qty | Description | Unit Price (USD) | Total (USD) |
|---|---|---|---|---|
| 1 | 150 | 2" RF Threaded Flange, ASTM A105 Carbon Steel, Class 150 | $4.27 | $640.50 |
| 2 | 100 | 2" RF Threaded Flange, ASTM A105 Carbon Steel, Class 600 | $14.53 | $1,453.00 |
| 3 | 300 | 3" RF Threaded Flange, ASTM A105 Carbon Steel, Class 150 | $10.30 | $3,090.00 |
| 4 | 100 | 3" RF Threaded Flange, ASTM A105 Carbon Steel, Class 600 | $30.78 | $3,078.00 |
| 5 | 300 | 4" RF Threaded Flange, ASTM A105 Carbon Steel, Class 150 | $11.97 | $3,591.00 |
| 6 | 140 | 4" RF Threaded Flange, ASTM A105 Carbon Steel, Class 600 | $47.90 | $6,706.00 |
| 7 | 30 | 6" RF Threaded Flange, ASTM A105 Carbon Steel, Class 150 | $14.60 | $438.00 |
SPECIFICATION TABLE
ASME B16.5 Threaded Flange Specifications Chart
Explore the complete technical specifications of ASME B16.5 Threaded (Screwed) Flanges, including available sizes, pressure classes, international standards, face types, manufacturing methods, testing, certifications, and material grades. Manibhadra Metals manufactures threaded flanges to ASME, ANSI, DIN, EN, BS, JIS, API, ISO, and MSS standards for demanding industrial piping applications.
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| Parameter | Details |
|---|---|
| Size Range | ½″ (15 NB) to 48″ (1200 NB) • DN10–DN5000 |
| Standards | ASME B16.5, ASME B16.47 Series A & B, ASME B16.48, EN 1092-1, DIN, BS, JIS, ISO 7005-1, API, MSS SP-44, GOST & AWWA |
| ANSI Pressure Class | Class 150, 300, 600, 900, 1500 & 2500 |
| DIN Pressure Rating | PN6, PN10, PN16, PN25, PN40 & PN64 |
| JIS Rating | 5K, 10K, 16K, 20K, 30K, 40K & 63K |
| EN / UNI Rating | 6 Bar, 10 Bar, 16 Bar, 25 Bar & 40 Bar |
| Surface Finish | Black Paint, Anti-rust Paint, Zinc Plated, Yellow Passivation, Cold & Hot Dip Galvanized |
| Common Types | Forged, Screwed, NPT, BSP, Plate & Reducing Threaded Flanges |
| Production | Forged, Heat Treated & CNC Machined |
| Face Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), LMF, SMF, Lap Joint Face (LJF), Tongue & Groove |
| Configurations | Equal & Reducing Threaded Flanges |
| Testing | PMI, Spectro Analysis, Hydrostatic, Ultrasonic (UT), Radiography (RT) & Magnetic Particle Inspection (MPI) |
| Equipment | Press, Bending, Pushing, Electric Bevelling & Sand Blasting Machines |
| Certificates | EN 10204 3.1 / 3.2, MTC, Third Party Inspection, NACE MR0103 & MR0175 |
| Origin | India, Western Europe, Japan, USA & South Korea |
| Available Standards | ANSI, ASME, DIN, EN, BS, JIS, API, MSS, UNI, GOST, AS2129 & AWWA |
| BS Standards | BS 4504, BS 3293, BS 1560 & BS 10 |
| AS 2129 | Table D, Table E & Table H |
| ANSI / MSS | ANSI B16.5, B16.36, B16.47, B16.48, MSS SP-44, API 605 & AWWA |
| DIN Standards | DIN 2527, 2566, 2573, 2576, 2627–2638, 2641, 2642, 2655 & 2656 |
| Other Standards | EN 1092-1, JIS B2220, GOST 12820, KS B1503, UNI 2276, SABS 1123 & NFE 29203 |
| Applications | Oil & Gas, Petrochemical, Chemical Processing, Refineries, Power Plants, Marine, Water Treatment & Industrial Piping |
| Export Markets | USA, Canada, UAE, Saudi Arabia, Oman, Singapore, Indonesia, Thailand, Brazil, Spain, Egypt, Iran & 20+ countries |
| Material Certification | EN 10204 3.1 / 3.2 with NACE MR0103 & MR0175 certification available on request |
Materials
ASME B16.5 Threaded Flange Material Grades
Manibhadra Metals manufactures ASME B16.5 Threaded (Screwed) Flanges in a comprehensive range of carbon steel, stainless steel, alloy steel, duplex, super duplex, nickel alloys, titanium, copper alloys, and other special materials. Our threaded flanges are available in Class 150 to Class 2500 and comply with ASME, ANSI, DIN, EN, BS, JIS, ISO, API, and MSS standards, making them suitable for oil & gas, petrochemical, chemical processing, marine, power generation, and high-pressure industrial piping systems.
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| Sr. No. | Material Grade | ASTM / ASME Specification & Available Grades |
|---|---|---|
| 1 | Carbon Steel | ASTM A105, A105N, A350 LF2, A694 F52, F56, F60, F65, F70, F80, A216 WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619 |
| 2 | Stainless Steel | ASTM A182 F304, F304L, F316, F316L, ASTM A351 CF8, CF3, CF8M, CF3M, DIN 1.4301, 1.4306, 1.4401, 1.4404, 1.4308, 1.4408, 1.4409 |
| 3 | Alloy Steel | ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91 |
| 4 | Duplex Steel | UNS S31803, S32205, ASTM A182 F51, F52, F53, F54, F55 |
| 5 | Super Duplex Steel | UNS S32750, S32760, ASTM A182 F53, F55, F57, F59, F60, F61 |
| 6 | Titanium | ASTM B381 / ASME SB381, Titanium Grade 1, 2, 4, 5, 7, 9, 12 |
| 7 | Copper | C10100, C10200, C10300, C10400, C10500, C10700, C10800, C11000, C12000, C12200, C14500, C17200, C26000, C70600, C71500 and other copper grades |
| 8 | Copper Nickel | ASTM SB61, SB62, SB151, SB152, Copper Nickel 90/10 (C70600), Copper Nickel 70/30 (C71500), UNS C71640 |
| 9 | Brass | H59, H62, C3602, C2604 and other brass grades |
| 10 | Inconel | ASTM B564 / ASME SB564, Inconel 600, 601, 625, 690, 718, 783, X-750 |
| 11 | Hastelloy | ASTM B564 / ASME SB564, Hastelloy C276, C22, C4, C2000, B2, B3, Hastelloy X |
| 12 | Monel | ASTM B564 / ASME SB564, Monel 400 (UNS N04400), Monel K500 (UNS N05500) |
| 13 | Alloy 20 | ASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3 |
| 14 | Aluminium | Aluminium 2017, 5052, 6061, 6063, 7075 and other aluminium grades |
| 15 | Nickel | ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC |
| 16 | Incoloy | ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT, 825, 925 |
| 17 | 254 SMO | ASTM A182 / ASME SA182, UNS S31254, 6Mo, DIN 1.4547 |
| 18 | Nimonic | Nimonic 75, Nimonic 80A, Nimonic 90 |
| 19 | Other Materials | Tin Bronze, Aluminium Bronze, Lead Bronze and other special alloys available on request |
Materials and Pressure Ratings
ASME B16.5 Threaded Flange Manufacturing Standards & Pressure Ratings
Manibhadra Metals manufactures ASME B16.5 Threaded (Screwed) Flanges using premium ASTM A182 forgings, ASTM A240 plates and BS970 bar stock in accordance with ASME, API, EN, BS and DIN standards. The table below provides the available manufacturing standards, base materials and corresponding pressure ratings.
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| Sr. No. | Standard | Base Material | Pressure Rating |
|---|---|---|---|
| 1 | EN 1092-1 | ASTM A182 (Forgings) | PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, PN160, PN250, PN320 & PN400 |
| 2 | BS 4504 | BS970 (Bar), ASTM A240 (Plate), ASTM A182 (Forgings) | PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100 & PN160 |
| 3 | ASME B16.5 | ASTM A182 (Forgings), ASTM A240 (Plate) | Class 150, 300, 400, 600, 900, 1500 & 2500 |
| 4 | API 605 | ASTM A182 (Forgings), ASTM A240 (Plate) | Class 150, 300, 400, 600, 900, 1500 & 2500 |
| 5 | ASME B16.47 Series A & B | ASTM A182 (Forgings), ASTM A240 (Plate) | Class 150, 300, 400, 600, 900, 1500 & 2500 |
| 6 | BS 10 | BS970 (Bar), ASTM A240 (Plate), ASTM A182 (Forgings) | Table D, Table E, Table F, Table H & Special Tables |
PRODUCT VARIANTS AND SPECIFICATIONS
Threaded Flange Material Types & Configurations
Manibhadra Metals manufactures ASME B16.5 Threaded Flanges (Screwed Flanges) in Carbon Steel, Stainless Steel, Alloy Steel, Duplex, Super Duplex, and Nickel Alloys. Available in NPT, BSP, RF, FF, RTJ, PN, Class, and custom configurations to ASME, ANSI, DIN, EN, BS, JIS, MSS, API, ISO, and AWWA standards.
ASME B16.5 Threaded Flange — A105 · ½″ · Class 150 RF
150 LB, ½″ RF Carbon Steel Threaded Flange manufactured to ASME B16.5 standards. Designed for weld-free threaded piping systems and supplied with EN 10204 3.1 Material Test Certificate (MTC).
ASME B16.5 Screwed Flange — A105 · 1½″ RF · NPTF
1½″ RF ASTM A105 Screwed Flange with NPTF threads manufactured to ASME B16.5. Ideal for low to medium pressure piping applications where welding is not required, supplied with EN 10204 3.1 MTC.
ASME B16.47 Series A Threaded Flange — ASTM A182 · PN100
PN100 ASTM A182 Galvanized Threaded Flange manufactured to ASME B16.47 Series A specifications. Suitable for large diameter industrial piping systems and available with certified material test reports.
ASME B16.47 Series B NPT Threaded Flange — ASTM A182 · RF
ASTM A182 RF NPT Threaded Flange manufactured to ASME B16.47 Series B standards. Designed for secure threaded pipe connections in high-pressure industrial applications with EN 10204 3.1 certification.
ANSI Class 150 Threaded Flange Dimensions
Complete ANSI B16.5 Class 150 Threaded Flange dimensions including flange thickness, bolt circle, bore size, drilling details, and pressure ratings for standard piping systems.
ANSI Class 300 Threaded Flange Dimensions
ANSI B16.5 Class 300 Threaded Flange dimensional chart covering flange dimensions, bolt hole layout, hub sizes, bore diameters, and pressure class specifications.
EN 1092-1 Square Threaded Flange — PN16
EN 1092-1 Square Threaded Flanges manufactured in Carbon Steel, Stainless Steel, and Alloy Steel with PN pressure ratings for industrial and process piping applications.
PN16 Threaded Flange — EN 1092-1
PN16 Threaded Flanges manufactured to EN 1092-1 standards, available in RF and FF facing with BSP and NPT threaded connections for industrial pipelines.
Forged Male & Female Threaded Flange
Forged Male & Female Threaded Flanges manufactured from ASTM A105 and ASTM A182 materials, providing precision threaded connections for leak-resistant piping systems.
AWWA C207 Class D Threaded Flange Adapter
AWWA C207 Class D Threaded Flange Adapters designed for water transmission, utility pipelines, and municipal applications with high-strength forged construction.
MSS SP-44 Threaded Lap Joint Flange
MSS SP-44 Threaded Lap Joint Flanges manufactured for large diameter piping systems requiring easy alignment, reliable sealing, and simplified maintenance.
ANSI B16.5 Screwed Pipe Flange — NPT · RF
ANSI B16.5 Screwed Pipe Flanges available with NPT and BSP threads in Carbon Steel, Stainless Steel, Duplex, and Alloy Steel for weld-free industrial piping installations.
Dimensions
ASME B16.5 Threaded Flange Dimensions
ANSI B16.5 Screwed Flange Dimensions, EN 1092-1 Threaded Flange Dimensions, PN16 Threaded Flange Size Chart & NPT Threaded Flange Dimensions
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| Pipe Size (NPS) |
Outside Diameter A |
Raised Face B |
Thickness C |
Hub Diameter J |
Hub Length L |
Thread Length N |
Bolt Holes | Approx. Weight (Lbs.) |
|---|---|---|---|---|---|---|---|---|
| 1/2" | 3 1/2 | 1 3/8 | 7/16 | 1 3/16 | 5/8 | 5/8 | 4 | 2 |
| 3/4" | 3 7/8 | 1 11/16 | 1/2 | 1 1/2 | 5/8 | 5/8 | 4 | 2 |
| 1" | 4 1/4 | 2 | 9/16 | 1 15/16 | 11/16 | 11/16 | 4 | 2 |
| 1 1/4" | 4 5/8 | 2 1/2 | 5/8 | 2 5/16 | 13/16 | 13/16 | 4 | 3 |
| 1 1/2" | 5 | 2 7/8 | 11/16 | 2 9/16 | 7/8 | 7/8 | 4 | 3 |
| 2" | 6 | 3 5/8 | 3/4 | 3 7/16 | 1 | 1 | 4 | 5 |
| 2 1/2" | 7 | 4 1/8 | 7/8 | 3 9/16 | 1 1/8 | 1 1/8 | 4 | 7 |
| 3" | 7 1/2 | 5 | 15/16 | 4 1/4 | 1 3/16 | 1 3/16 | 4 | 8 |
| 3 1/2" | 8 1/2 | 5 1/2 | 15/16 | 4 13/16 | 1 1/4 | 1 1/4 | 8 | 11 |
| 4" | 9 | 6 3/16 | 15/16 | 5 5/16 | 1 5/16 | 1 5/16 | 8 | 13 |
| 5" | 10 | 7 5/16 | 15/16 | 6 7/16 | 1 7/16 | 1 7/16 | 8 | 15 |
| 6" | 11 | 8 1/2 | 1 | 7 9/16 | 1 9/16 | 1 9/16 | 8 | 19 |
| 8" | 13 1/2 | 10 5/8 | 1 1/8 | 9 11/16 | 1 3/4 | 1 3/4 | 8 | 30 |
| 10" | 16 | 12 3/4 | 1 3/16 | 12 | 1 15/16 | 1 15/16 | 12 | 43 |
| 12" | 19 | 15 | 1 1/4 | 14 3/8 | 2 3/16 | 2 3/16 | 12 | 64 |
| 14" | 21 | 16 1/4 | 1 3/8 | 15 3/4 | 2 1/4 | 2 1/4 | 12 | 85 |
| 16" | 23 1/2 | 18 1/2 | 1 7/16 | 18 | 2 1/2 | 2 1/2 | 16 | 93 |
| 18" | 25 | 21 | 1 9/16 | 19 7/8 | 2 11/16 | 2 11/16 | 16 | 120 |
| 20" | 27 1/2 | 23 | 1 11/16 | 22 | 2 7/8 | 2 7/8 | 20 | 155 |
| 22" | 29 1/2 | 25 1/4 | 1 13/16 | 24 | 3 1/8 | 3 1/8 | 20 | 159 |
| 24" | 32 | 27 1/4 | 1 7/8 | 26 1/8 | 3 1/4 | 3 1/4 | 20 | 210 |
Note: All dimensions shown above are in inches and conform to ASME B16.5 Threaded (Screwed) Flange standards. Bore dimensions may vary depending on the pipe schedule and thread specification. For BSP, NPT, BSPT, custom drilling patterns, and certified manufacturing drawings, please contact Manibhadra Metals.
DIMENSIONS TABLE
ASME B16.5 Threaded Flange Dimensions
ASME B16.5 Threaded Flange dimensions covering Class 150, Class 300, and Class 600 pressure ratings with complete drilling details, bolt hole sizes, hub dimensions, flange thickness, and dimensional specifications in millimetres (mm).
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
DIMENSIONS TABLE
ANSI Class 150 Threaded Flange Dimensions
ASME B16.5 Class 150 Threaded Flange Dimensions, Bolt Hole Size, Drilling Pattern, Hub Dimensions & Weight Chart (All Dimensions in Millimetres).
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| Nominal Bore Threaded Flange |
Flange O.D. D |
Flange Thickness E |
Raised Face Dia. F |
Hub Dia. B |
Hub Height H |
No. of Bolt Holes | Bolt Hole Dia. | Bolt Circle Dia. C |
|---|---|---|---|---|---|---|---|---|
| 1/2″ | 90 | 9.6 | 35.05 | 30 | 14 | 4 | 15.87 | 60.3 |
| 3/4″ | 100 | 11.2 | 42.92 | 38 | 14 | 4 | 15.87 | 69.9 |
| 1″ | 110 | 12.7 | 50.80 | 49 | 16 | 4 | 15.87 | 79.4 |
| 1 1/4″ | 115 | 14.3 | 63.50 | 59 | 19 | 4 | 15.87 | 88.9 |
| 1 1/2″ | 125 | 15.9 | 73.15 | 65 | 21 | 4 | 15.87 | 98.4 |
| 2″ | 150 | 17.5 | 91.94 | 78 | 24 | 4 | 19.05 | 120.7 |
| 2 1/2″ | 180 | 20.7 | 104.65 | 90 | 27 | 4 | 19.05 | 139.7 |
| 3″ | 190 | 22.3 | 127.00 | 108 | 29 | 4 | 19.05 | 152.4 |
| 3 1/2″ | 215 | 22.3 | 139.70 | 122 | 30 | 8 | 19.05 | 177.8 |
| 4″ | 230 | 22.3 | 157.22 | 135 | 32 | 8 | 19.05 | 190.5 |
| 5″ | 255 | 22.3 | 185.67 | 164 | 35 | 8 | 22.22 | 215.9 |
| 6″ | 280 | 23.9 | 215.90 | 192 | 38 | 8 | 22.22 | 241.3 |
| 8″ | 345 | 27.0 | 269.75 | 246 | 43 | 8 | 22.22 | 298.5 |
| 10″ | 405 | 28.6 | 323.85 | 305 | 48 | 12 | 25.40 | 362.0 |
| 12″ | 485 | 30.2 | 381.00 | 365 | 54 | 12 | 25.40 | 431.8 |
| 14″ | 535 | 33.4 | 412.75 | 400 | 56 | 12 | 28.57 | 476.3 |
| 16″ | 595 | 35.0 | 469.90 | 457 | 62 | 16 | 28.57 | 539.8 |
| 18″ | 635 | 38.1 | 533.40 | 505 | 67 | 16 | 31.75 | 577.9 |
| 20″ | 700 | 41.3 | 584.20 | 559 | 71 | 20 | 31.75 | 635.0 |
| 24″ | 815 | 46.1 | 692.15 | 663 | 81 | 20 | 34.92 | 749.3 |
Note: All dimensions are provided in millimetres (mm) and correspond to ANSI/ASME B16.5 Class 150 Threaded Flange requirements. Dimensions may vary depending on thread type, flange facing, material grade, and project specification.
DIMENSIONS TABLE
ANSI Class 300 Threaded Flange Dimensions
ASME B16.5 Class 300 Threaded Flange Dimensions including Outside Diameter, Hub Size, Bolt Circle, Drilling Details & Weight Chart in Millimetres.
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| Nominal Bore Threaded Flange |
Flange O.D. D |
Flange Thickness E |
Raised Face Dia. F |
Hub Dia. B |
Bore Dia. A |
Hub Height H |
No. of Bolt Holes | Bolt Hole Dia. | Bolt Circle Dia. C |
|---|---|---|---|---|---|---|---|---|---|
| 1/2″ | 95 | 12.7 | 35.05 | 38 | 23.6 | 21 | 4 | 15.87 | 66.7 |
| 3/4″ | 115 | 14.3 | 42.92 | 48 | 29.0 | 24 | 4 | 19.05 | 82.6 |
| 1″ | 125 | 15.9 | 50.80 | 54 | 35.8 | 25 | 4 | 19.05 | 88.9 |
| 1 1/4″ | 135 | 17.5 | 63.50 | 64 | 44.4 | 25 | 4 | 19.05 | 98.4 |
| 1 1/2″ | 155 | 19.1 | 73.15 | 70 | 50.3 | 29 | 8 | 22.22 | 114.3 |
| 2″ | 165 | 20.7 | 91.94 | 84 | 63.5 | 32 | 8 | 19.05 | 127.0 |
| 2 1/2″ | 190 | 23.9 | 104.65 | 100 | 76.2 | 37 | 8 | 22.22 | 149.2 |
| 3″ | 210 | 27.0 | 127.00 | 117 | 92.2 | 41 | 8 | 22.22 | 168.3 |
| 3 1/2″ | 230 | 28.6 | 139.70 | 133 | 104.9 | 43 | 8 | 22.22 | 184.2 |
| 4″ | 255 | 30.2 | 157.22 | 146 | 117.6 | 46 | 8 | 22.22 | 200.0 |
| 5″ | 280 | 33.4 | 185.67 | 178 | 144.4 | 49 | 8 | 22.22 | 235.0 |
| 6″ | 320 | 35.0 | 215.90 | 206 | 171.4 | 51 | 12 | 22.22 | 269.9 |
| 8″ | 380 | 39.7 | 269.75 | 260 | 222.2 | 60 | 12 | 25.40 | 330.2 |
| 10″ | 445 | 46.1 | 323.85 | 321 | 276.2 | 65 | 16 | 28.57 | 387.4 |
| 12″ | 520 | 49.3 | 381.00 | 375 | 328.6 | 71 | 16 | 31.75 | 450.8 |
| 14″ | 585 | 52.4 | 412.75 | 425 | 360.4 | 75 | 20 | 31.75 | 514.4 |
| 16″ | 650 | 55.6 | 469.90 | 483 | 411.2 | 81 | 20 | 34.92 | 571.5 |
| 18″ | 710 | 58.8 | 533.40 | 533 | 462.0 | 87 | 24 | 34.92 | 628.6 |
| 20″ | 775 | 62.0 | 584.20 | 587 | 512.8 | 94 | 24 | 34.92 | 685.8 |
| 24″ | 915 | 68.3 | 692.15 | 702 | 614.4 | 105 | 24 | 41.27 | 812.8 |
Note: All dimensions are provided in millimetres (mm) and correspond to ANSI/ASME B16.5 Class 300 Threaded Flange requirements. Dimensions may vary depending on thread type, flange facing, material grade, and project specifications.
DIMENSIONS TABLE
ANSI Class 600 Threaded Flange Dimensions
ASME B16.5 Class 600 Threaded Flange Dimensions with Complete Drilling Pattern, Bolt Hole Details, Hub Dimensions & Approximate Weight Chart (mm).
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| Nominal Bore Threaded Flange |
Flange O.D. D |
Flange Thickness E |
Raised Face Dia. F |
Hub Dia. B |
Bore Dia. A |
Hub Height H |
No. of Bolt Holes | Bolt Hole Dia. | Bolt Circle Dia. C |
|---|---|---|---|---|---|---|---|---|---|
| 1/2″ | 95 | 14.3 | 35.05 | 38 | 23.6 | 22 | 4 | 15.87 | 66.7 |
| 3/4″ | 115 | 15.9 | 42.92 | 48 | 29.0 | 25 | 4 | 19.05 | 82.6 |
| 1″ | 125 | 17.5 | 50.80 | 54 | 35.8 | 27 | 4 | 19.05 | 88.9 |
| 1 1/4″ | 135 | 20.7 | 63.50 | 64 | 44.4 | 29 | 4 | 19.05 | 98.4 |
| 1 1/2″ | 155 | 22.3 | 73.15 | 70 | 50.6 | 32 | 4 | 22.22 | 114.3 |
| 2″ | 165 | 25.4 | 91.94 | 84 | 63.5 | 37 | 8 | 19.05 | 127.0 |
| 2 1/2″ | 190 | 28.6 | 104.65 | 100 | 76.2 | 41 | 8 | 22.22 | 149.2 |
| 3″ | 210 | 31.8 | 127.00 | 117 | 92.2 | 46 | 8 | 22.22 | 168.3 |
| 3 1/2″ | 230 | 35.0 | 139.70 | 133 | 104.9 | 49 | 8 | 25.40 | 184.2 |
| 4″ | 275 | 38.1 | 157.22 | 152 | 117.6 | 54 | 8 | 25.40 | 215.9 |
| 5″ | 330 | 44.5 | 185.67 | 189 | 144.4 | 60 | 8 | 28.57 | 266.7 |
| 6″ | 355 | 47.7 | 215.90 | 222 | 171.4 | 67 | 12 | 31.75 | 292.1 |
| 8″ | 420 | 55.6 | 269.75 | 273 | 222.2 | 76 | 12 | 31.75 | 349.2 |
| 10″ | 510 | 63.5 | 323.85 | 343 | 276.2 | 86 | 16 | 34.92 | 431.8 |
| 12″ | 560 | 66.7 | 381.00 | 400 | 328.6 | 92 | 20 | 34.92 | 489.0 |
| 14″ | 605 | 69.9 | 412.75 | 432 | 360.4 | 94 | 20 | 38.10 | 527.0 |
| 16″ | 685 | 76.2 | 469.90 | 495 | 411.2 | 106 | 20 | 41.27 | 603.2 |
| 18″ | 745 | 82.6 | 533.40 | 546 | 462.0 | 117 | 20 | 44.45 | 654.0 |
| 20″ | 815 | 88.9 | 584.20 | 610 | 512.8 | 127 | 24 | 44.45 | 723.9 |
| 24″ | 940 | 101.6 | 692.15 | 718 | 614.4 | 140 | 24 | 47.62 | 838.2 |
Note: All dimensions are provided in millimetres (mm) and conform to ANSI/ASME B16.5 Class 600 Threaded Flange dimensions. Values are intended for reference and may vary depending on material grade, thread type, flange facing, and applicable manufacturing standards.
DIMENSIONS TABLE
ASME B16.5 Threaded Flange Dimensions
Find standard ASME B16.5 Threaded (Screwed) Flange dimensions for NPS ½″ to 1½″ across Class 150 to Class 2500 pressure ratings, including drilling, flange thickness, hub dimensions, bolt hole sizes, and stud bolt requirements.
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
DIMENSIONS TABLE
NPS ½″ ASME B16.5 Threaded Flange Dimensions
ASME B16.5 NPS ½″ Threaded Flange dimensional comparison for Class 150, 300, 600, 900, 1500, and 2500, including flange diameter, thickness, raised face, bolt circle, bolt hole quantity, and stud bolt size.
Note:
- Dimensions are in millimeters unless otherwise indicated.
- The length of the Stud Bolt does not include the height of the chamfers (points).
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| CLASS | 150 | 300 | 600 | 900 | 1500 | 2500 |
|---|---|---|---|---|---|---|
| DIA A |
30 | 38 | 38 | 38 | 38 | 43 |
| DIA D |
90 | 95 | 95 | 120 | 120 | 135 |
| THK B |
9.6 | 12.7 | 14.3 | 22.3 | 22.3 | 30.2 |
| 11.2 | 14.3 | 20.7 | 28.7 | 28.7 | 36.6 | |
| DIA G |
35.1 | 35.1 | 35.1 | 35.1 | 35.1 | 35.1 |
| DIA K |
60.3 | 66.7 | 66.7 | 82.6 | 82.6 | 88.9 |
| H | 14 | 21 | 22 | 32 | 32 | 40 |
| 15.6 | 22.6 | 28.4 | 38.4 | 38.4 | 46.4 | |
| NO. L |
4 | 4 | 4 | 4 | 4 | 4 |
| DIA L |
15.9 | 15.9 | 15.9 | 22.2 | 22.2 | 22.2 |
| Stud Bolts Diameter x Length | ||||||
| DIA (In) |
1/2 | 1/2 | 1/2 | 3/4 | 3/4 | 3/4 |
| Len mm |
55 | 65 | 75 | 110 | 110 | 120 |
DIMENSIONS TABLE
NPS ¾″ ASME B16.5 Threaded Flange Dimensions
ASME B16.5 NPS ¾″ Threaded Flange dimensional chart for Class 150, 300, 600, 900, 1500, and 2500 pressure ratings, including flange diameter, thickness, raised face, bolt circle, bolt holes, and stud bolt sizes.
Note:
- Dimensions are in millimeters .
- The length of the Stud Bolt does not include the height of the chamfers (points).
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| CLASS | 150 | 300 | 600 | 900 | 1500 | 2500 |
|---|---|---|---|---|---|---|
| DIA A |
38 | 48 | 48 | 44 | 44 | 51 |
| DIA D |
100 | 115 | 115 | 130 | 130 | 140 |
| THK B |
11.2 | 14.3 | 15.9 | 25.4 | 25.4 | 31.8 |
| 12.8 | 15.9 | 22.3 | 31.8 | 31.8 | 38.2 | |
| DIA G |
42.9 | 42.9 | 42.9 | 42.9 | 42.9 | 42.9 |
| DIA K |
69.9 | 82.6 | 82.6 | 88.9 | 88.9 | 95.2 |
| H | 14 | 24 | 25 | 35 | 35 | 43 |
| 15.6 | 25.6 | 31.4 | 41.4 | 41.4 | 49.4 | |
| NO. L |
4 | 4 | 4 | 4 | 4 | 4 |
| DIA L |
15.9 | 19.1 | 19.1 | 22.2 | 22.2 | 22.2 |
| Stud Bolts Diameter x Length | ||||||
| DIA (In) |
1/2 | 5/8 | 5/8 | 3/4 | 3/4 | 3/4 |
| Len mm |
65 | 75 | 90 | 115 | 115 | 125 |
DIMENSIONS TABLE
NPS 1″ ASME B16.5 Threaded Flange Dimensions
ASME B16.5 NPS 1″ Threaded Flange dimensional chart covering Class 150, 300, 600, 900, 1500, and 2500 pressure ratings, including flange diameter, hub dimensions, thickness, bolt circle, bolt holes, and stud bolt specifications.
Note:
- Dimensions are in millimeters .
- The length of the Stud Bolt does not include the height of the chamfers (points).
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| CLASS | 150 | 300 | 600 | 900 | 1500 | 2500 |
|---|---|---|---|---|---|---|
| DIA A |
49.2 | 54 | 54 | 52 | 52 | 57 |
| DIA D |
110 | 125 | 125 | 150 | 150 | 160 |
| THK B |
12.7 | 15.9 | 17.5 | 28.6 | 28.6 | 35 |
| 14.3 | 17.5 | 23.9 | 35 | 35 | 41.4 | |
| DIA G |
50.8 | 50.8 | 50.8 | 50.8 | 50.8 | 50.8 |
| DIA K |
79.4 | 88.9 | 88.9 | 101.6 | 101.6 | 108 |
| H | 16 | 25 | 27 | 41 | 41 | 48 |
| 17.6 | 26.6 | 33.4 | 47.4 | 47.4 | 54.4 | |
| NO. L |
4 | 4 | 4 | 4 | 4 | 4 |
| DIA L |
15.9 | 19.1 | 19.1 | 25.4 | 25.4 | 25.4 |
| Stud Bolts Diameter x Length | ||||||
| DIA (In) |
1/2 | 5/8 | 5/8 | 7/8 | 7/8 | 7/8 |
| Len mm |
65 | 75 | 90 | 125 | 125 | 140 |
DIMENSIONS TABLE
NPS 1¼″ ASME B16.5 Threaded Flange Dimensions
ASME B16.5 NPS 1¼″ Threaded Flange dimensional chart for Class 150, 300, 600, 900, 1500, and 2500 pressure ratings, including flange diameter, hub dimensions, flange thickness, bolt circle, bolt holes, and stud bolt specifications.
Note:
- Dimensions are in millimeters .
- The length of the Stud Bolt does not include the height of the chamfers (points).
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| CLASS | 150 | 300 | 600 | 900 | 1500 | 2500 |
|---|---|---|---|---|---|---|
| DIA A |
59 | 64 | 64 | 64 | 64 | 73 |
| DIA D |
115 | 135 | 135 | 160 | 160 | 185 |
| THK B |
14.3 | 17.5 | 20.7 | 28.6 | 28.6 | 38.1 |
| 15.9 | 19.1 | 27.1 | 35 | 35 | 44.5 | |
| DIA G |
63.5 | 63.5 | 63.5 | 63.5 | 63.5 | 63.5 |
| DIA K |
88.9 | 98.4 | 98.4 | 111.1 | 111.1 | 130.2 |
| H | 19 | 25 | 29 | 41 | 41 | 52 |
| 20.6 | 26.6 | 35.4 | 47.4 | 47.4 | 58.4 | |
| NO. L |
4 | 4 | 4 | 4 | 4 | 4 |
| DIA L |
15.9 | 19.1 | 19.1 | 25.4 | 25.4 | 28.6 |
| Stud Bolts Diameter x Length | ||||||
| DIA (In) |
1/2 | 5/8 | 5/8 | 7/8 | 7/8 | 1 |
| Len mm |
70 | 85 | 95 | 125 | 125 | 150 |
DIMENSIONS TABLE
NPS 1½″ ASME B16.5 Threaded Flange Dimensions
ASME B16.5 NPS 1½″ Threaded Flange dimensional chart covering Class 150, 300, 600, 900, 1500, and 2500 pressure ratings with flange dimensions, hub details, bolt hole information, and stud bolt sizes.
Note:
- Dimensions are in millimeters .
- The length of the Stud Bolt does not include the height of the chamfers (points).
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| CLASS | 150 | 300 | 600 | 900 | 1500 | 2500 |
|---|---|---|---|---|---|---|
| DIA A |
65 | 70 | 70 | 70 | 70 | 79 |
| DIA D |
125 | 155 | 155 | 180 | 180 | 205 |
| THK B |
15.9 | 19.1 | 22.3 | 31.8 | 31.8 | 44.5 |
| 17.5 | 20.7 | 28.7 | 38.2 | 38.2 | 50.9 | |
| DIA G |
73.2 | 73.2 | 73.2 | 73.2 | 73.2 | 73.2 |
| DIA K |
98.4 | 114.3 | 114.3 | 123.8 | 123.8 | 146 |
| H | 21 | 29 | 32 | 44 | 44 | 60 |
| 22.6 | 31.6 | 38.4 | 50.4 | 50.4 | 66.4 | |
| NO. L |
4 | 4 | 4 | 4 | 4 | 4 |
| DIA L |
15.9 | 22.2 | 22.2 | 28.6 | 28.6 | 31.8 |
| Stud Bolts Diameter x Length | ||||||
| DIA (In) |
1/2 | 3/4 | 3/4 | 1 | 1 | 1-1/8 |
| Len mm |
70 | 90 | 110 | 140 | 140 | 170 |
pressure ratings
ASME B16.5 Threaded Flange Pressure Ratings
The table below presents the maximum allowable non-shock working pressure (PSIG) for ASME B16.5 threaded flanges across Pressure Classes 150, 300, 400, 600, 900, 1500, and 2500 at various operating temperatures. It also includes the hydrostatic test pressure values, serving as a quick reference for selecting the appropriate flange pressure rating based on service conditions.
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| Maximum Allowable non-shock Pressure (psig) | |||||||
|---|---|---|---|---|---|---|---|
|
Temperature (oF) |
Pressure Class (lb) | ||||||
| 150 | 300 | 400 | 600 | 900 | 1500 | 2500 | |
| Hydrostatic Test Pressure (psig) | |||||||
| 450 | 1125 | 1500 | 2225 | 3350 | 5575 | 9275 | |
| -20 to 100 | 290 | 750 | 1000 | 1500 | 2250 | 3750 | 6250 |
| 200 | 260 | 750 | 1000 | 1500 | 2250 | 3750 | 6250 |
| 300 | 230 | 730 | 970 | 1455 | 2185 | 3640 | 6070 |
| 400 | 200 | 705 | 940 | 1405 | 2110 | 3520 | 5865 |
| 500 | 170 | 665 | 885 | 1330 | 1995 | 3325 | 5540 |
| 600 | 140 | 605 | 805 | 1210 | 1815 | 3025 | 5040 |
| 650 | 125 | 590 | 785 | 1175 | 1765 | 2940 | 4905 |
| 700 | 110 | 555 | 740 | 1110 | 1665 | 2775 | 4630 |
| 750 | 95 | 505 | 675 | 1015 | 1520 | 2535 | 4230 |
| 800 | 80 | 410 | 550 | 825 | 1235 | 2055 | 3430 |
| 850 | 65 | 320 | 425 | 640 | 955 | 1595 | 2655 |
| 900 | 50 | 225 | 295 | 445 | 670 | 1115 | 1855 |
| 950 | 35 | 135 | 185 | 275 | 410 | 685 | 1145 |
| 1000 | 20 | 85 | 115 | 170 | 255 | 430 | 715 |
TOLERANCE
Dimensional Tolerances of Threaded Flanges PN16
Reference table outlining the standard dimensional tolerances for PN16 threaded flanges, including outside diameter, inside diameter, contact face, drilling, hub dimensions, counterbore, thickness, and hub length. These tolerances ensure manufacturing precision, interchangeability, and compliance with international flange standards.
☎ +91 99200 79735 / +91 88504 42758 | ✉ info@manibhadrametals.in
| Outside Diameter ≤ 24 = ± 1.6 mm > 24 = ± 3.2 mm | Inside Diameter Within Limits on Boring Gauge |
| Diameter of Contact Face 1.6 mm Raised Face = ± 0.8 mm 6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm | Drilling Bolt Circle = ± 1.6 mm Bolt Hole Spacing = ± 0.8 mm Eccentricity of Bolt Circle with Respect to Facing ≤ 2½ = 0.8 mm max. ≥ 3 = 1.6 mm max. |
| Outside Diameter of Hub ≤ 12 = +2.4 mm / -1.6 mm ≥ 14 = ± 3.2 mm | Diameter of Counterbore Same as for Inside Diameter |
| Thickness ≤ 18 = +3.2 mm / -0 mm ≥ 20 = +4.8 mm / -0 mm | Length thru Hub ≤ 18 = +3.2 mm / -0.8 mm ≥ 20 = +4.8 mm / -1.6 mm |
TYPES
Explore Other Types Of Flanges
Discover a complete range of flange designs engineered for different pressure classes, piping systems, and industrial applications.
KNOWLEDGE BASE
Frequently Asked Questions
What is a Threaded Flange?
A Threaded Flange, also known as a Screwed Flange, is a pipe flange with internal threads that allows it to be connected to threaded pipes without welding. It is widely used in low to medium-pressure piping systems where welding is impractical or hazardous.
What standards are Threaded Flanges manufactured to?
Manibhadra Metals manufactures Threaded Flanges in accordance with international standards including ASME B16.5, ANSI, EN 1092-1, DIN, BS, JIS, API, ISO, and MSS, ensuring dimensional accuracy and reliable performance.
What materials are available for Threaded Flanges?
Our Threaded Flanges are available in Stainless Steel, Carbon Steel, Mild Steel, Alloy Steel, Duplex Stainless Steel, Super Duplex, Inconel, Monel, Hastelloy, Titanium, Nickel Alloys, Copper Nickel, and other special alloys.
What are the advantages of using Threaded Flanges?
Threaded Flanges eliminate the need for welding, simplify installation and maintenance, reduce downtime, and are ideal for systems requiring easy dismantling or installation in hazardous environments.
What pressure classes are available for ASME B16.5 Threaded Flanges?
ASME B16.5 Threaded Flanges are available in Pressure Classes 150, 300, 400, 600, 900, 1500, and 2500, making them suitable for a wide range of industrial pressure applications.
GET IN TOUCH
Ready to discuss your project requirements?
Our team is here to help you find the right metal solutions for your application.