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Copper nickel pipe fittings

Copper nickel pipe fittings

What are copper nickel pipe fittings?

Applications that require above-par corrosion resistance and durability use these components. Copper nickel pipe fittings contain 70-90% copper and 10-30% ni with other elements like iron and manganese.

Copper nickel buttweld fittings are well-suited to marine environments and frequently work in shipbuilding, offshore navy projects, and desalination.

We supplied cuni fittings in the Maldives, Bangladesh, Myanmar, Taiwan, and Cambodia within ten days

cuni elbow manufacturer in India

Which properties of Copper Nickel Pipe fittings make them suitable for various applications?

Corrosion resistance to chlorides, hydrofluoric acid, and sulfuric acid sets cunifer pipe fittings apart.

  • Natural resistance to biofouling
  • High tensile strength
  • Cuni fittings are impervious to stress corrosion cracking (SCC) in seawater
  • Impressive ductility and weldability
  • Show longevity and reliability

Specification of copper nickel pipe fittings

Copper nickel pipe fittings standard and sizes EEMUA 146 elbow strength Copper nickel tee thickness tolerance
  • Up to 8 inch
  • EEMUA 234
  • Tensile stress: 50 KSI
  • Yield strength: 20 KSI
  • +0.06 to +0.25
  • custom
Cuni alloy buttweld fittings grades EEMUA 146 copper nickel stub end weld preparation EEMUA 234 copper nickel reducer temperature
  • For wall thickness : less than 3mm
  • For larger thicknesses : 37 ½°±2 ½°.
  • 593 - 816°C
EEMUA 234 bend radius Cupro nickel alloy cap pressure rating 7 manufacturing forms of copper nickel butt welded fittings
  • 3D
  • 4D
  • 5D
  • 6D
  • 8D
  • 10D
  • 20 bar
  • Reducer
  • Stub end
  • Pipe bend
  • Elbow
  • Cross
  • Tee
  • Cap

For a dependable cunifer tee supplier in Mumbai, turn to Manifest Alloys. Explore the properties of our EEMUA 234 butt weld fittings, suitable for various applications

Which industries commonly use Copper Nickel Pipe fittings?

Desirable thermal and corrosion-proof properties make CU NI pipe fittings ideal for condensers and marine industries. They also work in power plants, oil refineries, and chemical processing. Their favourable metallurgical characteristics suit heat exchangers, naval shipping, and petrochemicals.

We are top quality cuni pipe fittings manufacturer in India

Types of cupro nickel buttweld fittings


EEMUA 234 cap

EEMUA 234 cap

cunifer stub end

cunifer stub end

cuni pipe bend

cuni pipe bend

copper nickel alloy cross

copper nickel alloy cross

Cupro nickel tee

Cupro nickel tee

Copper nickel reducer

Copper nickel reducer

cuni elbow

cuni elbow

cu ni alloy elbow dimension


cu ni alloy elbow dimension
Size in 10 16 12 14 18 8 24 6 20 1 2 3 4 28 36 32
Size (OD) mm 267 419 323.9 368 457.2 219.1 610 159 508 30 38 44.5 57 76.1 88.9 108 711 914 813
Pipe Wall Thickness t 16 bar 4.5 7 5.5 6.5 8 4 10.5 3 8.5 Use 20 bar 12 15.5 13.5
20 bar 5.5 9 7 8 9.5 4.5 13 3.5 11 2.5 2.5 2.5 2.5 2.5 2.5 3 15 19 17
90°   381 610 457 533 686 305 914 229 762 38 43 57 76 95 114 152 1067 1372 1219
45°   159 254 190 222 286 127 381 95 318 22 25 29 35 44 51 64 438 565 502
45° 20 bar 12 50 23 34 64 6.5 156 2.7 92 0.06 0.09 0.15 0.25 0.45 0.65 1 245 513 362
45° 16 bar 10 38 17 27 54 6 126 2.3 71 Use 20 bar 197 420 289
90° 20 bar 24 99 45 67 128 13 312 5.5 184 0.12 0.13 0.3 0.52 0.9 1.25 2.1 490 1026 725
90° 16 bar 20 77 35 55 109 12 252 4.7 142 Use 20 bar 394 841 579
 

Cupro nickel cross thermal Conductivity


Thermal Conductivity
26.0 Btu . ft/(hr . ft2 . oF)at 68F
45.0 W/m . oK at 20 C
 

Copper nickel elbow schedules & american stanadards


Copper nickel elbow schedules & american stanadards

With Manifest Alloys, you no longer have to choose between quality and affordability when it comes to cupro nickel reducer

Can high-quality Copper Nickel Pipe fittings be purchased at a reasonable price?

The premium raw materials raise the prices of cuni alloy pipe fittings. However, buyers can source high-quality components at budget-friendly prices from capable suppliers with versatile portfolios.

At Manifest Alloys, our priority is consumer value without compromising quality. We achieve this through state-of-the-art infrastructure, a skilled in-house team, and stage-wise quality control for a cuni elbow.

We are manufacturer of cunifer butt weld fittings , we provide cupro nickel elbows all over India

Chemical composition of cuni elbow


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
We believe in providing EEMUA 146 copper nickel stub end that deliver exceptional performance, with the added benefits of high resistance to corrosion and heat

How do temperature and pressure affect the quality and performance of a cupro nickel buttweld elbow?

These fittings handle maximum operating temperatures of 400°C. Their favourable thermal properties are intact at lower temperatures. A cuni elbow also exhibits a reasonable tensile strength of 393 MPa. However, increasing temperature adversely impacts the corrosion rate and overall strength.

Mechanical properties of cunifer tee


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
Check us out online if you want to learn more about copper nickel alloy end cap and cuni fittings, as well as their dimensional accuracy and pressure rating

What are the dimensional specifications and pressure rating of Copper Nickel Pipe fittings?

The sizes for copper nickel fittings range from 1/2 to 24 inches or DN 15 to 500. Buyers can order them in pressure ratings of 2000 lbs to 9000 lbs. We are committed to meeting specific client requirements and can fulfil personalized orders of cuni pipe fittings.

Equivalent properties of cupro nickel reducer


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

Applications of CUNI pipe fitting

CUNI pipe fitting applications
 

Copper nickel alloy equal tee dimension


Copper nickel alloy equal tee dimension
Nominal size in 8 6 10 16 12 14 18 28 20 24 32 1 2 3 4 36
Specified size (OD) mm 219.1 159 267 419 323.9 368 457.2 711 508 610 813 30 38 44.5 57 76.1 88.9 108 914
Specified Pipe Wall Thickness t 16 bar 4 3 4.5 7 5.5 6.5 8 12 8.5 10.5 13.5 Use 20 bar 15.4
20 bar 4.5 3.5 5.5 9 7 8 9.5 15 11 13 17 2.5 2.5 2.5 2.5 2.5 2.5 3 19
  E 178 143 216 305 254 279 343 521 381 432 597 38 48 57 64 76 86 105 673
Theoretical Weight (kg) 16 bar 11.25 6 22.5 88 39.5 62 128 388 165 266 508 Use 20 bar 650
  20 bar 12.7 7.2 27.5 119 50.3 76 152 458 214 330 606 0.3 0.5 0.75 1 1.6 2 3.25 794