Copper-nickel-70-30-pipe-tube

Energy Steel Industrial Co., Ltd.
Steel Fabrication,Special Steel,Nickel Alloy Steel Tube

Category

Copper-nickel-70-30-pipe-tube

Copper Nickel Pipes and Tubes (Cu-Ni 70/30) are made from high-quality raw materials to ensure durability and meet top industry standards. The Copper Nickel UNS C71500 70/30 Pipes are known for their reliable performance, especially in marine environments. copper nickel pipes are resistant to seawater corrosion, have anti-biofouling properties, and can withstand erosion and corrosion, making them ideal for various industries.


These Copper Nickel Alloy 70/30 Pipes are highly suitable for piping systems in shipbuilding due to their strong alloy properties. We can customize Cu-Ni 70/30 pipes and tubes in different sizes and thicknesses based on our clients' needs. Additionally, we offer these Copper Nickel Pipes & cupro nickel tubes at competitive prices

Copper Nickel Pipe Supplier

The ASTM B466 Cupro Nickel 70/30 Seamless Pipe is also great at conducting heat, though its thermal and electrical conductivity is slightly lower compared to pure copper.

The nickel in the alloy increases the heat resistance of the UNS C71500 Square Pipe, which is especially useful in high-temperature environments. The Cu-Ni 70/30 Welded Pipe is commonly used in marine engineering for heat exchangers and condensers, as well as in refrigeration and air conditioning systems.

Copper Nickel 70/30 Seamless Pipes and Tubes are a great choice for industries that need corrosion resistance because they are made from a strong alloy that doesn’t rust. Copper nickel pipes are especially useful in marine engineering, where WERKSTOFF NR. 2.0882 Hexagonal Pipes are commonly used. The 70/30 Cu-Ni Hollow Pipe contains a higher amount of copper, making it highly resistant to seawater. Copper Nickel 70/30/NES 780 also has good resistance to microfouling due to its high copper content, although its microfouling properties are slightly lower than pure copper.

The primary wrought copper-nickel alloys for seawater service contain either 10% or 30% nickel, with added iron and manganese to ensure excellent corrosion resistance. Common applications include valves and pump components.

Check out our wide selection of Copper Nickel products, including pipes, tubes, flanges, and fittings, all known for their great corrosion resistance.

Cu-Ni 70/30 Pipe & Tube Specification Chart
Material Specification EN10216-5, ASTM A 312/A790/, ASME SA 312/ SA790
WT 0.1millimeter to 60 millimeter
Copper Nickel 70/30 Pipe Size standard Schedule 40s, 10s, 160s, 80s, ½”- 6” Nominal Bore
Surface Finish Bright, Cold Finish, Pickling, Annealing, Polished or as per need
Length Available 10 to 12 meter Double Random Length
5 -7 meter Single Random Length
Technology to Manufacture Cold Formed/ Hot
Copper Nickel 70/30 Pipe various types Welded, Seamless, EFW, ERW
Test Reports PMI Test Reports, EN 10204 3.1, Mill Test Certificates, Mechanical Reports, Chemical Reports, Visual Inspection Reports, NABL Approved Lab Reports, Third Party Inspection, , Destructive and Non Destructive Test Reports
Copper Nickel 70/30 Pipe Standard ASTM AMS, EN, AISI, JIS, GOST, GB, ASME, ASTM, DIN
Method Hot Rolled/ Cold Rolled
Copper Nickel 70/30 Pipe available Shapes Square, Round, Box Section, Rectangle
Available-Types-of-Cupro-Nickel-7030-Pipes-And-Tubes
  • UNS C71500 Welded Pipes
  • ASTM B466 Cupro pipe
  • 2.0882 Hexagonal Pipe
  • C71500 Square Pipe
  • 70/30 Seamless Pipe
  • Cu-Ni 70/30 Tube
UNS C71500 Welded Pipes Mechanical Properties
Copper Nickel 70/30 Pipe Melting Point Elongation Density Yield Strength Tensile Strength
2260 F 30 % at 68 F 0.323 lb/inch 3 20000 psi 50000 psi
Chemical Properties of Cu-Ni 70/30 Seamless Pipes
Grade  Pb Zn Ni Cu Fe Mn
Copper Nickel 70/30 Pipe .05 maximum 1 maximum 29 - 33 65.0 minimum 0.4-1.0 1.0 maximum
Cupro Nickel 70/30 Pipe Equivalent Material
WERKSTOFF NR. UNS STANDARD 
2.0882 C71500 Cu-Ni 70/30
Key Features of Cu-Ni 70/30

•  Excellent corrosion and pitting resistance in marine environments
•  Good strength and toughness
•  Resistance to biofouling
•  Readily weldable and fabricated

Applications of 70/30

Offshore & marine | Salt water flanges, salt water piping and pipe fittings, valve bodies, sea water intakes, pipe fittings, water boxes, propeller sleeves, pump bodies and parts
Chemical processing | Heat exchanger and cooling plant, evaporator tubes, distiller tubes, refrigerator and condenser components
Other | Welding backing rings, flexible metal hose, weld wire and boiler parts

Sizes Range of Cupro Nickel 70/30 Pipe
Kilogram/meter Copper Nickel 70/30 Pipe Outside Diameter
milimeter 		Schedule Copper Nickel 70/30 Pipe Wall Thickness
milimeter 		inch
0.050 13.72 10S 01.65 1/4
0.081 13.72 80S 3.02 1/4
01.12 17.15 80S 3.20 3/8
01.30 26.67 10S 2.11 3/4
01.65 201.34 80S 3.73 1/2
2.23 26.67 80S 3.91 3/4
01.29 201.34 40S 2.77 1/2
01.71 26.67 40S 2.87 3/4
0.086 17.15 40S 2.31 3/8
0.064 13.72 40S 2.24 1/4
2.13 33.40 10S 2.77 1
0.064 17.15 10S 01.65 3/8
2.73 42.16 10S 2.77 1¼
4.30 33.40 160 6.352) 1
3.29 33.40 80S 4.55 1
3.44 42.16 40S 3.56 1¼
2.54 33.40 40S 3.38 1
4.53 42.16 80S 4.85 1¼
01.02 201.34 10S 2.11 1/2
3.16 48.26 10S 2.77 1½
5.49 48.26 80S 5.08 1½
4.11 48.26 40S 3.68 1½
5.69 42.16 160 6.352) 1¼
3.99 60.033 10S 2.77 2
5.52 60.033 40S 3.91 2
7.60 60.033 80S 5.54 2
101.29 60.033 160 8.742) 2
5.35 73.03 10S 3.05 2½
8.77 73.03 40S 5.16 2½
101.59 73.03 80S 7.01 2½
6.56 88.90 10S 3.05 3
201.67 88.90 160 101.132) 3
15.51 88.90 80S 7.62 3
13.78 1001.60 40S 5.74 3½
7.53 1001.60 10S 3.05 3½
18.92 1001.60 80S 8.08 3½
16.32 114.30 40S 6.02 4
101.47 88.90 40S 5.49 3
8.50 114.30 10S 3.05 4
22.10 1401.30 40S 6.55 5
34.05 114.30 160 13.492) 4
49.87 1401.30 160 15.882) 5
112.97 219.08 160 23.012) 8
28.69 168.28 40S 7.11 6
22.67 114.30 80S 8.56 4
14.04 168.28 10S 3.4 6
54.75 168.28 120 14.27 6
43.21 168.28 80S 10.097 6
301.44 1401.30 80S 9.53 5
68.59 168.28 160 18.262) 6
901.30 219.08 120 18.23 8
65.63 219.08 80S 12.7 8
43.20 219.08 40S 8.18 8
Cu-ni 70/30 Tube Size Chart
( Outside Diameter) Copper Nickel 70/30 Tube Sizes WT
1/8" 0.012
1/16" , 1/8" , 1/4" 3/16" , 3/8", 5/16" 0.020
1/8" , 3/16" 0.016
1/16" , 1/8" , 3/16" 0.010
1/8" , 1/4" 3/16" , 3/8", 5/16" , 1/2" , 3/4" , 1" , 1 1/2" , 2" 0.028
1/8" , 1/4" 3/16" , 3/8", 5/16" , 7/16" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/2" , 1 1/4" , 1 5/8" , 2" , 2 1/4" 0.035
1/4" 3/16" , 3/8", 5/16" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/8" , 1 1/2" , 1 1/4" , 1 5/8" , 2" , 2 1/4" 0.049
1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/2" , 1 1/4" , 1 5/8" , 1 3/4" , 2" , 2 1/2" , 3" 0.065
3 1/2" .375
1/4" , 3/8" , 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/2" , 1 1/4" , 1 5/8" , 1 7/8" , 2" , 2 1/2" ,3" 0.083
1/2" , 5/8" , 1 1/4" , 1" , 1 1/2" , 2" 0.095
1/2" , 3/4" , 1 1/4" , 1" , 1 1/2" , 2" .109
1/2" , 5/8" , 3/4" , 7/8" , 1 1/4" , 1" , 1 1/2" , 2" , 2 1/4" , 2 1/2" , 3" .120
3" .250
3/4" , 1 1/4" , 1" , 1 1/2" , 2" , 3" , 3 1/4" .125
1" .134
Pressure Rating of Copper Nickel 70/30 Seamless Pipe
Pipes O.D.
(in.) 		Copper Nickel 70/30 Pipe Wall Thickness of Pipe (inches)
.035 .109 .028 .065 .049 .095 .083 .120
1/4 4800   3700 9500 7000      
1/8 10100   7900          
3/8 3100     6100 4400      
5/16 3700     7300 5400      
3/4       3000 2200 4600 4000  
1/2 2300     4400 3200      
1   3900   2200   3400 2900 4300
Cu-ni 70/30 Welded Pipe Weight Chart
Nominal Pipe Size WT Copper Nickel 70/30 Pipe OD Weight Copper Nickel 70/30 Pipe Weight
milimeter inch inch milimeter kilogram/Meter Sched Lb/ft
1/2″ 2.769 0.0109 0.0840 21 1.268 40 STD 0.0851
3.734 0.0147 1.621 80 STD 1.088
3/4″ 2.870 0.0113 1.050 27 1.684 40 STD 1.131
3.912 0.0154 2.195 80 STD 1.474
1″ 3.378 0.0133 1.315 33 2.501 40 STD 1.679
4.547 0.0179 3.325 80 STD 2.172
1 1/4″ 3.556 0.0140 1.660 42 3.385 40 STD 2.273
4.851 0.0191 4.464 80 STD 2.997
1 1/2″ 3.683 0.0145 1.900 48 4.048 40 STD 2.718
5.080 0.0200 5.409 80 STD 3.361
2″ 3.912 0.0154 2.375 60 5.441 40 STD 3.653
5.537 0.0218 7.480 80 STD 5.022
2 1/2″ 5.516 0.0203 2.875 73 8.629 40 STD 5.793
7.010 0.0276 11.411 80 STD 7.661
3″ 5.486 0.0216 3.500 89 11.284 40 STD 7.576
7.620 0.0300 15.272 80 STD 10.0253
4″ 6.020 0.0237 4.500 114 16.073 10.0790
8.560 0.0337 22.318 14.983
6″ 4.775 0.0188 6.625 168 19.252 12.924
5.516 0.0203 20.0739 13.923
5.563 0.0219 22.318 14.983
6.350 0.0250 25.354 17.021
7.112 0.0280 58.263 40 STD 18.974
7.925 0.0312 31.334 21.036
9.525 0.0375 37.285 25.031
10.0973 0.0432 42.561 80 XHY 28.573
12.700 0.0500 48.719 32.708
8″ 4.775 0.0188 8.625 219 25.233 16.940
5.156 0.0203 27.198 18.259
5.563 0.0219 29.286 19.661
6.350 0.0250 33.308 20 22.361
7.036 0.0277 36.786 30 24.696
8.179 0.0322 42.352 40 28.554
9.525 0.0375 49.216 33.041
10.0312 0.0406 53.085 60 35.638
12.700 0.0500 64.627 80 XHY 43.388
10″ 4.775 0.0188 10.0750 273 31.588 21.207
5.563 0.0219 36.689 24.631
6.350 0.0250 41.759 20 28.035
7.798 0.0307 51.002 30 34.240
8.738 0.0344 56.946 38.231
9.271 0.0365 63.301 40 STD 40.0483
11.125 0.0438 71.852 48.238
12.700 0.0500 81.530 60 XHY 54.735
15.088 0.0594 95.969 80 64.429
12″ 4.775 0.0188 12.750 324 37.570 25.222
5.563 0.0219 43.657 29.309
6.350 0.0250 49.713 33.375
7.137 0.0281 55.739 37.420
7.925 0.0312 61.735 41.445
9.525 0.0375 73.824 49.562
10.0312 0.0406 79.727 53.525
12.700 0.0500 97.438 65.415
14.275 0.0562 108.966 73.154
14″ 4.775 0.0188 14.000 356 41.308 27.732
5.563 0.0219 48.012 32.233
6.350 0.0250 54.685 20 36.713
7.137 0.0281 61.327 41.172
7.925 0.0312 67.939 45.611
9.525 0.0375 81.281 STD 54.568
11.125 0.0438 94.498 40 63.441
12.700 0.0500 107.381 XHY 72.090
15.875 0.0625 132.983 89.278
16” 4.775 0.0188 16.000 406 47.290 21.748
5.563 0.0219 54.980 36.910
6.350 0.0250 62.639 10 42.053
7.137 0.0281 70.0268 47.174
7.925 0.0312 77.866 20 52.275
8.738 0.0344 85.677 57.519
9.525 0.0375 93.213

30

STD

62.578
11.125 0.0438 108.433 72.797
12.700 0.0500 123.289

40

XHY

82.770
18″ 5.563 0.0219 18.000 457 61.948 41.588
6.350 0.0250 70.0593 47.393
7.137 0.0281 79.208 53.176
7.925 0.0312 87.792 20 58.939
9.525 0.0375 105.144 STD 70.0588
11.125 0.0438 122.369 30 82.152
12.700 0.0500 139.198 XHY 93.450
14.275 0.0562 155.904 40 104.666
15.875 0.0625 172.754 115.978
20″ 6.350 0.0250 20.0000 508 78.547 52.733
7.163 0.0282 88.458 59.386
7.925 0.0312 97.719 65.604
9.525 0.0375 117.075 20 STD 78.598
11.125 0.0438 136.305 91.508
12.700 0.0500 155.106 30 XHY 104.130
15.088 0.0594 183.378 40 123.110
15.875 0.0625 192.640 129.328
17.475 0.0688 211.368 141.901
24″ 6.350 0.0250 24.000 610 94.456 63.413
7.137 0.0281 106.029 71.183
7.925 0.0312 117.573 18.932
9.525 0.0375 140.0938 20 STD 64.618
11.125 0.0438 164.176 110.0219
12.700 0.0500 186.923 XHY 125.490
15.875 0.0625 232.410 156.028
17.475 0.0688 255.148 40 171.293
19.050 0.0750 277.401 186.233
30″ 6.350 0.0250 30.0000 762 118.318 79.433
7.137 0.0281 132.851 89.189
7.925 0.0312 147.353 10 98.925
9.525 0.0375 176.731 STD 118.648
11.125 0.0438 205.983 138.286
12.700 0.0500 234.647 20 XHY 157.530
15.875 0.0625 292.066 30 196.078
17.475 0.0688 320.0817 215.380
19.050 0.0750 348.988 234.293
36″ 6.350 0.0250 36.000 914 142.180 95.453
7.137 0.0281 159.672 107.196
7.925 0.0312 177.133 10 118.918
9.525 0.0375 215.525 STD 142.678
11.125 0.0438 247.790 166.353
12.700 0.0500 282.372 20 XHY 198.570
15.875 0.0625 351.723 236.128
17.475 0.0688


386.487 259.467
19.050 0.0750


420.0576 282.353
42″ 7.925 0.0312 42.000 1067 206.914 138.911
9.525 0.0375 248.319 STD 166.708
12.700 0.0500 33.097 XHY 221.610
19.050 0.0750 492.163 330.0413
48″ 9.525 0.0375 48.000 1219 284.112 STD 190.0738
11.125 0.0438 331.404 222.487
12.700 0.0500 377.822 XHY 253.650
19.050 0.0750 563.750 378.473
22.225 0.0875 655.969 440.0383
Schedule Chart of Astm B466 Cupro Nickel 70/30 Seamless Pipe
1/8" IPS(.405"O. D.) 3 1/2" IPS( 4.000"O. D.)
SCH 40, 80 SCH 10, 40, 80, 160, XXH
1/4" IPS(.540"O. D.) 4" IPS(4.500"O. D.)
SCH 10, 40, 80 SCH 10, 40, 80, 160, XXH
3/8" IPS(.675"O. D.) 5" IPS( 5.563"O. D.)
SCH 10, 40, 80 SCH 10, 40, 80, 160, XXH
1/2" IPS(.840"O. D.) 6" IPS(6.625"O. D.)
SCH 5, 10, 40, 80, 160, XXH SCH 5, 10, 40, 80, 120, 160, XXH
3/4" IPS(1.050"O. D.) 8 ” IPS(8.625"O. D.)
SCH 10, 40, 80, 160, XXH SCH 5, 10, 40, 80, 120, 160, XXH
1" IPS:(1.315′O. D.) 10" IPS(10.750"O. D.)
SCH 5, 10, 40, 80, 160, XXH SCH 10, 20, 40, 80 (.500), TRUE 80(.500)
1-1/4" IPS(1.660"O. D.) 12" IPS(12.750"O. D.)
SCH 10, 40, 80, 160, XXH SCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500)
1-1/2" IPS(1.900"O. D.) 14" IPS(14.000"O. D.)
SCH 10, 40, 80, 160, XXH SCH10 (.188), SCH40 (.375)
2" IPS(2.375"O. D.) 16" IPS(16.000"O. D.)
SCH 10, 40, 80, 160, XXH SCH10(.188), SCH40(.375)
2 1/2" IPS(2.875"O. D.) 18" IPS (18.000"O. D.)
SCH 10, 40, 80, 160, XXH SCH-40 (.375)
3" IPS( 3.500"O. D.)  
SCH 5, 10, 40, 80, 160, XXH  
Copper Nickel 70/30 Tubes Surface Finish
Copper Nickel 70/30 Pipe Surface Finish Exterbal Surface(OD) Internal Surface(ID)
Roughness Average(RA) Roughness Average(RA)
μm μ inch μm μ inch
BA Beight Annealed 0.8 32 1.0, 0.6, 0.8, 0.5 32, 40, 20, 25
EP Electro Polish 0.8 32 0.25, 0.38, 0.13, 0.20 10, 7, 15,5
AP Annealed & Pickled 1.0 or Not defined 40 or Not defined Not defined Not defined
MP Mechanical Polish 0.8 32 0.8, 1.0, 0.5, 0.6 32, 40, 20, 25
Cupro Nickel Pipe Wall Thickness
Copper Nickel 70/30 Pipe Types Copper Nickel 70/30 Pipe Out diameter Wall thickness Copper Nickel 70/30 Pipe Length
Copper Nickel 70/30 Seamless Pipe (as per need) 5.0 milimeter ~ 203.2 milimeter as per need Upto 6 Meters
NB Sizes (ready Stock) 1/8” ~ 8” SCH 10 / SCH 5 / SCH 80 //SCH 40 / SCH 160
Cupro Nickel 70/30 Welded Pipe (ready Stock + as per need 5.0 milimeter ~ 1219.2 milimeter 1.0 ~ 15.0 milimeter