70 30 CuNi Flanges
Siddhagiri Metals and Tubes offers Copper Nickel Flanges and Fittings in a wide range of dimension standards. ASTM B151 Flanges are manufactured entirely in-house, from casting all the way to the finished semis. We offer a many forms of CuNi Flanges such as SORF, BLRF, WNRF, LJRF in with or without threading. We can manufacture fabricated flanges on requestfor special applications. 70 30 Copper Nickel Flanges are widely used in seawater pipring systems because of their corrosion resistant properties.
Other Names: ASTM B151 UNS C71500, Copper Nickel Flanges, 70 30 CuNi Flanges
Material: 70 30 CuNi Alloy
Brand: Siddhagiri Metals and Tubes
Manufacturer: Siddhagiri Metals and Tubes
ASTM B151 UNS C71500 • 70 30 CuNi Pipe Flange • Copper Nickel Flanges Supplier
Siddhagiri Metals and Tubes is a supplier of high-qualityCopper Nickel Flanges manufactured as per ASTM B151. Contact us for best price on CuNi Flanges.
A flange joint is a connection of pipes, where the connecting pieces have flanges by which the parts are bolted together. The principle of a flange is to apply a mechanical force by using bolts to preload the gasket until contact stress between flanges and gasket is sufficient to maintain a seal. Connection to the pipe is by welding or threading. To allow easy functionality and inter-changeability, these ASTM B151 Flanges are designed to have standardised dimensions which include ANSI, ASME, DIN, EN, BS, JIS. Flanges have major applications in Oil, Gas, Petrochemical, Ship-Building, Marine, Food, Dairy, Railways and other associated industries were piping systems are required.
Copper Nickel Slip On Flange — Alloy Slip-On Flanges is slightly larger than the outer diameter of the pipe it is to be used with. The pipe is slipped into the Flange prior to welding both inside and outside. We supply a wide range of slip-On Flanges in different dimensions and sizes.
Copper Nickel Blind Flange — Alloy Flange with no borehole are known as Blind Flange and used to close the end of the pipe. Blind Flanges are supplied as threaded or welded from class 150lb to 2500lb.
Copper Nickel Weld Neck Flange — Alloy Weld Neck Flanges are widely used in high-pressure piping systems and can be easily recognised by the long tapered hub. The size of the bore hole is usually equal to the size of the pipe.
Copper Nickel Socket Weld Flange — Initially developed for small high-pressure piping systems a Socket Weld Flange is similar to Slip On Flange. The flange is installed by welding around the hub of the flange.
Copper Nickel Threaded Flange — Threaded Flanges are used for special application where the flange can be assembled to the piping system by without welding. We specialise in all forms of threaded flanges and can supply it in multiple size range.
Copper Nickel Lap Joint Flange — Lap-Joint Flanges are similar to Slip-On flanges and are generally used with Lap-Joint Stubs. This type of flange is highly used where the piping systems are disassembled from time to time.
Siddhagiri Metals and Tubes supplies Copper Nickel Flanges in different sizes and pressure ratings. Our production stock of Copper Nickel Flanges includes size range from 1/2” to 24”, 26” to 60”, 1” to 24”, 1/2” to 24”, 12” to 60”, 26” to 48”, 21/16” to 30”, DN10 to DN3600. We have an inventory of flanges rating from Class 150 to 2500 Lbs, Class 300 to 2500 Lbs, Class 150 to 2500 Lbs, Class 150 to 900 Lbs, Class 150 to 600 Lbs, 2000 Psi to 20000 Psi, PN6 to PN 160. Our flanges conform to international dimension standards such as ASME / ANSI B16.5, ASME B16.47 / API 605, ASME / ANSI B16.36, ASME B16.48 / API 590, MSS-SP-44, BS 3293, API 6A and DIN. We stock various types of flanges which include Slip On Flange, Blind Flange, Weld Neck Flange, Socket Weld Flange, Threaded Flange, Lap Joint Flange.
We have an extensive inventory of 70 30 CuNi Flanges and alloy flanges to compliment our pipe products. Most of our high quality, flanges and gasket kits are ready to ship upon request. Speak to one of our specialists and find out which flanges to meet your flange and piping specifications. We have partnered with the best flange brands around the world to meet your flange requirements. We also stock flanges from Ulma — Spain, Metalfar — Italy, Mellesi — Italy, Massoti — Italy. Moreover, we are SAUDI ARAMCO approved supplier of flanges and provide all documents including Mill Certificate along with the shipment.
Our primary export destinations include Russia, Australia, UK, Germany, US, Saudi Arabia, Qatar, Jordan, South Africa, Thailand, Canada, Mexico, Brazil and much more.
- Flange Specification: ASTM B151 UNS C71500, ASME SB151 UNS C71500, EN 12164 & DIN 2.9882
- Dimension Standard: ASME / ANSI B16.5, ASME B16.47 / API 605, ASME B16.48 / API 590, MSS-SP-44, BS 3293, API 6A, DIN DN10 to DN3600
- Size Range: 1/2” to 24”
- Rating: Class 150 to 2500 Flanges | PN 6, PN 10, PN 16, PN 25, PN 40, PN 64 upto PN 160
- Type of Flanges: 70 30 CuNi Weld-Neck Flanges, 70 30 CuNi Socket-Weld Flange, 70 30 CuNi Lap-Joint Flange, 70 30 CuNi Orifice Flange, 70 30 CuNi Tongue-Grove Flange, 70 30 CuNi Blind Flange, 70 30 CuNi Threaded Flange, 70 30 CuNi Slip-On Flange, 70 30 CuNi Spectacle Flange, 70 30 CuNi Plate Flanges
- Form: SORF, BLRF, WNRF, SWRF, LJRF, LWNRF, RTJ, Flat Face, Ring Type, Raised Face
- Origin: Indian Origin, European Origin, Japanese Origin
- Testing and Documents: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports
- Packing: Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests
70 30 CuNi Alloy Flanges in Stock
|Dimension Standard||Size Range||Rating|
|ASME / ANSI B16.5 Flanges||1/2” to 24”||Class 150 to 2500 Lbs|
|ASME B16.47 / API 605 Flanges||26” to 60”||-|
|ASME / ANSI B16.36 Flanges||1” to 24”||Class 300 to 2500 Lbs|
|ASME B16.48 / API 590 Flanges||1/2” to 24”||Class 150 to 2500 Lbs|
|MSS-SP-44 Flanges||12” to 60”||Class 150 to 900 Lbs|
|BS 3293 Flanges||26” to 48”||Class 150 to 600 Lbs|
|API 6A Flanges||2 1/16” to 30”||2000 Psi to 20000 Psi|
|DIN Flanges||DN10 to DN3600||PN6 to PN 160|
Forms of ASTM B151 UNS C71500 in Stock
Weld Neck Flange
70 30 CuNi Weld Neck Flange available from class 150 to 2500
Tongue Groove Flange
70 30 CuNi Tongue Groove Flanges available from PN6 to PN 160 ratings
70 30 CuNi Threaded Flange available in ASME / ANSI B16.5 standards
ASTM B151 70 30 CuNi Spectacle Flange
Socket Weld Flange
ASTM B 151 Socket Weld Flange
Slip On Flange
70 30 CuNi Slip On Flange ASTM B151
70 30 CuNi Orifice Flange available from PN6 to PN 160 ratings
Lap Joint Flange
70 30 CuNi Lap Joint Flange available in ASME B16.36 and ANSI B16.36 ASTM B151 Flanges
ASTM B151 70 30 CuNi Blind Flange available from class 150 to 2500LB
Cu Pb Mn Fe Zn Ni MIN 65.000 - - 0.400 - 29.000 MAX 0.500 1.000 1.000 1.000 33.000
(% in 50mm)
MIN 88 372 45.00 MAX 483 517 51
Density kg/dm³ 8.95 Melting Range °C 1170-1240 Specific Heat J/kg °K 377 Thermal Conductivity W/m°K 29 Coeff. of Linear Expansion 10-300°C" 10-6/°K 16 Electrical Resistivity microhm. cm 34 Modulus of Elasticity GPa 152 Modulus of Rigidity GPa 56
Properties of 70 30 CuNi alloy
70 30 Copper-Nickel Cold Forming and Hot Forming
With good hot and cold working properties, copper nickel alloy responds well to most fabrication processes. Due to properties inherited from Copper, Copper-Nickel alloy is can be easily drawn and spin.
70 30 Copper-Nickel Machining
Copper-nickels can be cut using most conventional cutting processes. Plasma-arc cutting is fast, accurate and economical. Laser and abrasive water jet cutting are also possible The machinability rating of 70 30 copper-nickel alloy is 20%.
70 30 CuNi Welding
Copper Nickel Alloys can be easily joined by soldering, brazing and a variety of welding methods such as gas shielded arc welding, spot welding, coated metal arc welding, butt welding, seam welding, brazing, soldering and oxyacetylene welding processes.
70 30 CuNi Corrosion Resistance
Copper-nickel Alloys have good resistance to chloride pitting and crevice corrosion. They have excellent corrosion resistance against moisture, non-oxidising acids, alkalis and salt solutions, organic acids and to gases such as oxygen, chlorine, hydrogen chloride, hydrogen fluoride, sulphur dioxide and carbon dioxide. It is found that the corrosion rates of CuNi alloys are 0.02-0.002mm/year in sea-water.
Services We Offer
Documentation is a very important part of the products we supply, and we work continuously to enhance the efficiency of the document-handling process without compromising quality of the product. Documents provided along with the shipment include Certificate of Origin, Material Test Certificate as per EN 10204 3.1 and 10204 3.2, NACE MR10103 and NACE MR0175 certified Test Certificates.
Copper Nickel Flanges and Fittings are manufactured and controlled to international standards such as ASTM, ASME, BS, MSS, EN, DIN or WERKSTOFFE. Our products undergo stringent quality tests before they are dispatched.
PMI Testing, Ultrasonic Test, Mechanical Testing, Spectro Tests for Chemical Analysis of the grade, Flaring Test, IGC, etc. are some of the tests conducted at our facility. We welcome stage wise inspection from any of your representative or third party inspection agencies.
Packing and Delivery
The product is wrapped and packed in wooden crates or carton boxes. Our primary goal is to deliver quality products in time, no matter where the client is located.