We are a company located in Metinox Overseas, and one of the largest manufacturers of Copper Alloy Flanges in India and company provides high quality flanges used in piping systems of industries that will last long. We manufacture high quality alloys like CUNI (Copper-Nickel), CuZn (Copper-Zinc) as well as CuSn (Copper-Tin), which make our products durable and resistant to corrosion and high performance in demanding situations.
We have manufactured our Copper Alloy Flanges in different grades to meet the broad range of industry requirements and the world's major standards, including ANSI B16.5, ASME B16.47, MSS-SP44, API, BS, and DIN. Available in a wide array of configurations, you'll find Slip-On, Weld Neck, Blind, Threaded, Socket Weld, and Lap Joint flanges, all offered across pressure classes from 150 LBS up to 2500 LBS.
All copper alloy flanges at Metinox Overseas are manufactured under tight control using quality materials and the latest production technology, therefore, the flanges are of the correct size, thickness, and with high mechanical strength. We supply a fast and reliable supply of standard sizes and grades with ready stocks in India and internationally. The industries in which our flanges are applicable include oil and gas, petrochemical, chemical processing, power generation, marine engineering, desalination, water treatment, and heavy engineering, among others, which is why we are a reliable product for engineers and procurement managers.
Table of Contents
- Copper Alloy Flanges Specifications & ASTM Standards
- Chemical Composition of Copper Alloy Flanges
- Mechanical Properties of Cu-Ni 90/10 (UNS C70600) Flanges
- Equivalent Standards Of Copper Alloy Flanges
- Temperature Rating of Copper Alloy Flanges
- Copper Alloy Flanges - Size & Dimension Chart
- Types of Copper Alloy Flanges
- Applications and Uses of Copper Alloy Flanges in Key Industries
- Copper Alloy Flanges Suppliers Across India
- Global Export of Copper Alloy Flanges
Copper Alloy Flanges by Grade
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Copper Alloy Flanges Specifications & ASTM Standards
The table given below provides you with detailed information about copper alloy flange specifications and standards.
| Specification | Details |
| Material Grade | Cu ETP C101, ASTM B124 UNS C63000 |
| Flange Size | 1/2 Inch - 60 Inch |
| Standards | ASTM / ASME SB 61 / 62 / 151 / 152, ASME B16.5, ASME B16.47 Series A & B, AS3688, BS4504, BS10, EN-1092, DIN, GOST |
| Working Pressure | Up to 1400 kPa |
| Class / Pressure Ratings | 150 Lbs, 300 Lbs, 600 Lbs, 900 Lbs, 1500 Lbs, 2500 Lbs; PN6, PN10, PN16, PN25, PN40, PN64 |
| Temperature Range | -10-C to +110-C (T/E), -10-C to +95-C (T/D) |
| Flange Types | Threaded, Forged, Screwed, Plate |
| Flange Face Types | Ring Type Joint (RTJ), Lap-Joint Face, Raised Face, Flat Face, Small/Large Tongue & Groove, Male-Female |
| Marking | Supplier Name, Size, Class, Bore, Dimension, Material, Heat No., or per customer requirement |
Chemical Composition of Copper Alloy Flanges
Chemical composition helps you to understand the miscibility of the products. So here is the information of chemical composition of copper alloy flanges.
| Alloy Type | Cu (%) | Ni (%) | Zn (%) | Sn (%) | Fe (%) | Pb (%) | Mn (%) |
| CUNI (CuNi 90/10) | 88.6-90.0 | 9.0-11.0 | 1.0 | - | 1.0-1.8 | 0.05 | 1.0 |
| CuZn (Brass) | 60-70 | - | 30-40 | - | 0.5-1.0 | - | - |
| CuSn (Bronze) | 88-90 | - | - | 10-12 | - | - | - |
Mechanical Properties of Cu-Ni 90/10 (UNS C70600) Flanges
The mechanical properties of the copper alloy flanges provide you with a detailed knowledge of their tensile strength and other properties, which are listed below.
| Property | Details (UNS C70600) |
| Density (g/cm-) | 8.90 - 8.94 |
| Density (lb/in-) | 0.323 |
| Melting Range (-C) | 1099 - 1149 |
| Melting Range (-F) | 2010 - 2100 |
| Tensile Strength (MPa) | 300 - 414 |
| Yield Strength (MPa) | 100 - 150 |
| Elongation (%) | 30 - 45 |
| Hardness (HB) | 80 - 100 |
| Modulus of Elasticity (GPa) | 130 - 140 |
| Thermal Conductivity (W/m-K) | 45 - 50 |
| Electrical Conductivity (% IACS) | 9 |
| Coefficient of Thermal Expansion (10?6/-C) | 17 |
Equivalent Standards Of Copper Alloy Flanges
The Copper Alloy Flanges are made in different international standards, some of which are listed below.
| Grades | C10200 | C10300 | C10800 | C11400 | C11600 | C14200 | C14420 | C12000 | C12200 |
Temperature Rating of Copper Alloy Flanges
The temperature rating helps you to choose the correct grades of copper alloy flanges that match your requirements. Below is the temperature rating chart of copper alloy flanges.
| Temp., -C | 150 | 300 | 400 | 600 | 900 | 1500 | 2500 |
| -29 ~ 38 | 20.0 | 51.7 | 68.9 | 103.4 | 155.1 | 258.6 | 430.9 |
| 50 | 19.5 | 51.7 | 68.9 | 103.4 | 155.1 | 258.6 | 430.9 |
| 100 | 17.7 | 51.5 | 68.7 | 103.0 | 154.6 | 257.6 | 429.4 |
| 150 | 15.8 | 50.3 | 66.8 | 100.3 | 150.6 | 250.8 | 418.2 |
| 200 | 13.8 | 48.6 | 64.8 | 97.2 | 145.8 | 243.4 | 405.4 |
| 250 | 12.1 | 46.3 | 61.7 | 92.7 | 139.0 | 231.8 | 386.2 |
| 300 | 10.2 | 42.9 | 57.0 | 85.7 | 128.6 | 214.4 | 357.1 |
| 325 | 9.3 | 41.4 | 55.0 | 82.6 | 124.0 | 206.6 | 344.3 |
| 350 | 8.4 | 40.3 | 53.6 | 80.4 | 120.7 | 201.1 | 335.3 |
| 375 | 7.4 | 38.9 | 51.6 | 77.6 | 116.5 | 194.1 | 323.2 |
| 400 | 6.5 | 36.5 | 48.9 | 73.3 | 109.8 | 183.1 | 304.9 |
| 425 | 5.5 | 35.2 | 46.5 | 70.0 | 105.1 | 175.1 | 291.6 |
| 450 | 4.6 | 33.7 | 45.1 | 67.7 | 101.4 | 169.0 | 281.8 |
| 475 | 3.7 | 31.7 | 42.3 | 63.4 | 95.1 | 158.2 | 263.9 |
| 500 | 2.8 | 28.2 | 37.6 | 56.5 | 84.7 | 140.9 | 235.0 |
| 538 | 1.4 | 16.5 | 22.1 | 33.1 | 49.6 | 82.7 | 137.9 |
| 550 | - | 13.9 | 18.6 | 27.9 | 41.8 | 69.7 | 116.2 |
| 575 | - | 9.4 | 12.6 | 18.9 | 28.3 | 47.2 | 78.6 |
| 600 | - | 6.6 | 8.9 | 13.3 | 19.9 | 33.2 | 55.3 |
| 625 | - | 5.1 | 6.8 | 10.3 | 15.4 | 25.7 | 42.8 |
| 650 | - | 4.7 | 6.3 | 9.5 | 14.2 | 23.6 | 39.4 |
Copper Alloy Flanges - Size & Dimension Chart
The size chart of copper alloy flanges is listed below to help you to get the most accurate copper alloy for your application.
| NPS (Inches) | Outside Diameter (OD) | No. of Bolt Holes | Bolt Size | Bolt Hole Diameter | Bolt Circle Diameter (BCD) |
| -? | 3-1/2? | 4 | -? | 0.62? | 2-3/8? |
| -? | 3-7/8? | 4 | -? | 0.62? | 2-3/4? |
| 1? | 4-1/4? | 4 | -? | 0.62? | 3-1/8? |
| 1--? | 4-5/8? | 4 | -? | 0.62? | 3-1/2? |
| 1--? | 5? | 4 | -? | 0.62? | 3-7/8? |
| 2? | 6? | 4 | ?? | 0.75? | 4-3/4? |
| 2--? | 7? | 4 | ?? | 0.75? | 5-1/2? |
| 3? | 7--? | 4 | ?? | 0.75? | 6? |
| 4? | 9? | 8 | ?? | 0.75? | 7--? |
| 5? | 10? | 8 | -? | 0.88? | 8--? |
| 6? | 11? | 8 | -? | 0.88? | 9--? |
| 8? | 13--? | 8 | -? | 0.88? | 11--? |
| 10? | 16? | 12 | ?? | 1? | 14--? |
| 12? | 19? | 12 | ?? | 1? | 17? |
Types of Copper Alloy Flanges
Metinox Overseas is a trusted company that manufactures copper alloy flanges that can suit various piping and connecting needs in challenging industrial and marine systems. We have the following product portfolio:
Slip-On Flanges
Suitable for low and medium pressure. These flanges are simple to install, and the pipe simply inserts into the flange and is externally or internally welded according to the requirement. Ideal to use in the case of having to assemble quickly.
Weld Neck Flanges
Extraction flanges of high strength and long tapered hubs guarantee high levels of stress distribution. Applications include industries including water treatment, chemical processing, and marine systems, where high pressure and high temperature are required.
Blind Flanges
Solid plugs that are used to seal the end of the pipelines or a valve opening and make it totally isolated. Usually applied as a maintenance or pressure test, or temporary piping capping.
Socket Weld Flanges
Constructed with a socket into which the pipe will be inserted and the socket will be welded, which is to offer secure joints in small-diameter and high-pressure copper alloy piping systems.
Threaded Flanges
The internally threaded flanges, which can be welded to pipes. The perfect choice to be used in applications where welding cannot be done or for temporary installations.
Lap Joint Flanges
Installed with stub ends so that they can be easily assembled and disassembled. They come in handy, particularly in those systems that need frequent upkeep or checking.
Orifice Flanges
Flow measurement systems with specially designed flanges are employed where the precision of monitoring and control is important. Frequent in processes and marine.
Long Weld Neck Flanges
Flanges made of copper alloy with a long neck are to be adopted in high-pressure systems and high-pressure piping networks where strength and distribution of stress are of vital consideration.
Applications and Uses of Copper Alloy Flanges in Key Industries
Metinox Overseas provides Copper Alloy Flanges, which are common in piping and fluid handling systems of critical nature, and are used in a wide range of industries. The flanges can be used for different applications, such as in the marine sector and the offshore sector, as well as in various industries, like chemical plants and petrochemical facilities, water treatment plants and desalination plants, and in the food and beverage sector and the pharmaceutical sector. It is observed that copper flanges have higher advantages compared to other flanges for use in systems that process seawaters and harsh corrosive environments, along with high to moderate temperatures, due to their high level of strength, durability, and long-term use while maintaining leak-tightness with easy maintainability.
Marine & Offshore
Superior corrosion resistance for seawater systems, ship construction, and offshore platforms.
Chemical Plants
Reliable connections for chemical processing systems handling corrosive media.
Petrochemical Facilities
High-performance flanges for petrochemical processing and refining operations.
Water Treatment
Durable flanges for water treatment plants and desalination facilities.
Food & Beverage
Sanitary grade flanges for food processing and beverage production systems.
Pharmaceutical
Clean and corrosion-resistant connections for pharmaceutical manufacturing.
Looking for High-Quality Copper Alloy Flanges?
Choose Metinox Overseas - Your Reliable Copper Alloy Flanges Manufacturer & Exporter.
Let us support your projects with quality, precision, and performance.
Copper Alloy Flanges Suppliers Across India
We are the major supplier of Copper Alloy Flanges in India, and some of the most popular cities where we supply our products are listed below.
| Bengaluru | Mumbai | Chennai | Hyderabad |
| Kolkata | Pune | New Delhi | Ahmedabad |
| Jaipur | Surat | Salem | Gandhinagar |
| Bhiwandi | Tiruppur | Sivakasi | Jamnagar |
| Thiruvananthapuram | Rajahmundry | Bhubaneswar | Vijayawada |
| Firozabad | Bokaro Steel City | Rajkot | Bharuch |
| Raipur | Cochin | Ludhiana | Panipat |
| Durgapur | Peenya | Pimpri-Chinchwad | Channapatna |
| Kharagpur | Nashik | Bareilly | Varanasi |
| Haldia | Rourkela | Moradabad | Indore |
| Visakhapatnam | Trivandrum | Pithampur | Dibrugarh |
| Angul | Gwalior | Coimbatore | Kannur |
| Nagpur | Vadodara | Rudrapur | Noida |
| Agra | Bhagalpur | Jamshedpur | Bhilai |
| Lucknow | Kanpur | Thane | Bhopal |
| Durg-Bhilai Nagar | Jabalpur | Ghaziabad |
Global Export of Copper Alloy Flanges
Metinox overseas also supplies their copper alloy flanges in 30+ countries to the quality of international standards. Some of the countries where we supply our products are given below.
| Saudi Arabia | Oman | Kuwait | Bahrain |
| Qatar | UAE | Iran | Netherlands |
| Nigeria | Mexico | Canada | Bangladesh |
| United States | South Africa | Malaysia | Brazil |
| Singapore | Sri Lanka | Australia | Turkey |
| Venezuela | United Kingdom | Germany | New Zealand |
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