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Copper Nickel Forged Fittings

Copper nickel forged fittings

What are the advantages of using Copper Nickel Forged Fittings ?

These products are composed of copper and nickel, with impactful inclusions of iron and manganese. Copper nickel forged fittings are best suited to high pressures and temperatures (800 to 900°C), exhibiting trustworthy performance in marine and chemical industries.

  • Withstands erosion, biofouling, and ammonia in seawater
  • Cupro nickel bushing resists chloride-ion stress cracking
  • Have a high PREN of 37
  • Can face non-oxidising acids and salts
  • Copper nickel socket weld fittings resist impingement corrosion
  • Durable, with long service life and negligible maintenance

CuNi threaded fittings also work in water desalination and power generation.


Manufacturer of Cuni Threaded Fittings in India, Check Specification to Get Detail Information

Copper Nickel Socket Weld Fittings Specification



Cuni Threaded Fittings Specification



Copper nickel forged fittings specifications

Cupro Nickel Alloys SW Fittings Delivery Schedules


Country  Name  Delivery Time
Colombia      12 weeks
Chile
Bolivia
Brazil
Argentina

Supplier of Cupro Nickel 90/10 Socket Weld Fittings in Size Ranging From 1/8" – 4", Check Size Chart Here

Size Chart of UNS C70600 Forged Fittings


Description Class designation
6000 3000 9000
Cuni forged fittings size
by wall thickness
SCH 160 SCH 80 / XS XXS
Elbows 45° and 90°
tee,half-couplings, crosses, couplings,
end / pipe caps
1/2 – 2 1/2 – 4 1/2 – 2
1/2 – 2 1/2 – 4 1/2 – 2
1/2 – 2 1/2 – 4 1/2 – 2

Which corrosion testing methods evaluate the corrosion resistance of Copper Nickel Forged Fittings?

Intergranular corrosion (IGC) and pitting resistance tests are mandatory for cupro nickel threaded fittings. Salt sprays, electrochemical processes, and visual inspection ensure fitment to challenging environmental conditions.

Copper nickel 70/30 forged fittings also undergo non-destructive assessments like ultrasonic testing to detect discontinuities, and corrosive damage. Careful monitoring during quality checks safeguards results from:

  • Humidity
  • Severe temperatures
  • Impurities and pollution
  • Contact with dissimilar or reactive metals

Types of Cupro Nickel Socket Weld Fittings


Cunifer Socket Weld Fittings

Cunifer Socket Weld Fittings

Copper Nickel Forged Fittings

Copper Nickel Forged Fittings

Cuni 90/10 Socket Weld Fittings

Cuni 90/10 Socket Weld Fittings

Cuni Threaded Fittings

Cuni Threaded Fittings


Find Cunifer Full and Half Coupling in 3000 LBS, 6000 LBS, 9000 LBS Pressure Ratings, Check Dimensions

Dimensions Chart of Copper Nickel Forged Fittings


NPS Socket Bore Bore diameter Depth Socket Body wall thickness Socket wall thickness Center to bottom of socket A
B D J G C 45°
1 34.05 33.80 27.4 25.9 13 4.55 5.70 5.00 14
3/4 27.30 27.05 21.7 20.2 13 3.90 4.90 4.25 12.5
42.80 42.55 35.8 34.3 13 4.85 6.05 5.30 17
1/2 21.95 21.70 16.6 15 10 3.75 4.65 4.10 11.5
2 61.35 61.10 53.5 51.7 16 5.55 6.95 6.05 25
48.90 48.65 41.7 40.1 13 5.10 6.35 5.55 21
74.20 73.80 64.2 61.2 16 7.00 8.75 7.65 29
4 115.80 115.45 103.8 100.7 19 8.55 10.70 9.35 41.5
3 90.15 89.80 79.5 46.4 16 7.60 9.50 8.30 31.5

What are the thermal conductivity properties of Copper Nickel Forged Fittings?

Thermal conductivity, measured in watts per metre-kelvin, denotes the ability to conduct and transfer heat. A 90/10 Cuni socket weld union shows desirable thermal properties, boasting a conductivity of 17.5 W/(m·K) at 20°C.

In comparison, steel is a poor thermal conductor. The conductivity of Inconel is around 5.8, while Hastelloy comes in at 9.8 W/m-K.

An ASTM B467 UNS C71500 socket weld elbow, which uses a 70/30 copper-nickel constitution, has an even higher value of 29 W/(m·K). These favourable properties emanate from its constituents – nickel and copper – which are both good conductors of heat.

Thermal applications like heat exchangers, condensers, heat sinks, etc., covet these characteristics. A UNS C70600 DIN 2.0872 socket weld coupling retains ductility and conductivity at low temperatures.

Find ASTM B467 Copper Nickel Forged Elbow Chemical Composition

CUNI Screwed Fittings Chemical Composition


Grade Mn Cu Pb Fe Ni Zn
90/10 1.0 max 88.6 min 0.5 max 1.8 max 9-11 max 1 max
70/30 1 max 65.0 min 0.5 max 0.4-1.0 29-33 1 max

Copper Nickel SW Fittings Mechanical Properties


Grade Melting point Density Tensilestrength Elongation Yieldstrength(0.2%Offset)
90/10 2260°F 8.8g/cm3 50000 PSi 30% 20000PSi
70/30 2260°F 0.323 lb/in3 at 68°F 50000 PSi 30% 20000PSi
Get Copper Nickel 70/30 Union in BSP, NPT, and BSPT Threads, Check Properties

CUNI Forged Fittings Equivalent Properties


Grade UNS Werkstoff Nr.
90/10 C70600 2.0872
70/30 C71500 2.0882

Applications of Cupro Nickel Threaded Fittings


  • Shipbuilding ( special marine vessels)
  • Chemical process industries
  • Offshore (various navy projects)
  • Oil refineries
  • Condensers
  • Desalination plants
  • Power Plants
  • Desalination plants

Value Added Services of ASTM B467 UNS C71500 Socket Weld Elbow


  • Cladding
  • Minor fabrication
  • Heat treatment
  • Forging
  • Bending
  • Annealed
  • Pickling / polish
  • Cutting
  • Rolling

Material Testings of Copper Nickel 70/30 Forged Fittings


  • Mechanical testing ( tensile of area )
  • Chemical analysis (Spectro analysis)
  • Hardness test
  • Flattening test
  • Positive material identification test (PMI)
  • Pitting resistance test
  • Micro / macro test
  • Intergranular corrosion test (IGC)
  • Flaring test