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70 30 CuNi Pipe Flange Supplier

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
Rating: 4.1/5 based on 83 customer reviews

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

In Stock Copper Nickel Alloy Weld Neck Flanges

Weld Neck Flange

70 30 CuNi Weld Neck Flange available from class 150 to 2500

In Stock 70 30 CuNi Tongue Groove Flanges

Tongue Groove Flange

70 30 CuNi Tongue Groove Flanges available from PN6 to PN 160 ratings

In Stock Copper Nickel Threaded Flanges with ASME B16.5 and ANSI B16.5

Threaded Flange

70 30 CuNi Threaded Flange available in ASME / ANSI B16.5 standards

In Stock 70 30 CuNi Spectacle Flanges

Spectacle Flange

ASTM B151 70 30 CuNi Spectacle Flange

In Stock Copper Nickel Alloy Socket Weld Flanges

Socket Weld Flange

ASTM B 151 Socket Weld Flange

In Stock 70 30 CuNi Slip On Flanges

Slip On Flange

70 30 CuNi Slip On Flange ASTM B151

In Stock Copper Nickel Orifice Flanges

Orifice Flange

70 30 CuNi Orifice Flange available from PN6 to PN 160 ratings

In Stock 70 30 CuNi Lap Joint Flanges with ASME B16.36

Lap Joint Flange

70 30 CuNi Lap Joint Flange available in ASME B16.36 and ANSI B16.36 ASTM B151 Flanges

In Stock Copper Nickel Blind Flanges

Blind Flange

ASTM B151 70 30 CuNi Blind Flange available from class 150 to 2500LB

  • Chemical Properties
  • Mechanical Properties
  • Physical Properties
  • Cu Pb Mn Fe Zn Ni
    MIN 65.000 - - 0.400 - 29.000
    MAX 0.500 1.000 1.000 1.000 33.000
  • Yield Strength
    0.2% Proof
    (MPa)
    Tensile strength
    (MPa)
    Elongation
    (% in 50mm)
    Hardness
    (HRB)
    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

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.

Quality Assurance

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.

Material Testing

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.

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