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Neil Metals, based in Kolkata, India, stands out as a leading manufacturer and supplier of top-notch Copper Nickel Hollow Bars, serving both local and global markets. These hollow bars come in various grades, including 90/10 and 70/30, and are celebrated for their remarkable resistance to corrosion, especially in marine and saltwater settings. Crafted to adhere to strict international standards, the Copper Nickel Hollow Bars from Neil Metals find extensive use in essential engineering and fluid-handling systems. The company prides itself on precision, timely deliveries, and tailored solutions that cater to the unique demands of industries such as marine, offshore, power, and chemical processing.

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Copper Nickel Hollow Bar

70/30 Copper Nickel Hollow Bar

90/10 Copper Nickel Hollow Bar

Table of Contents

What is Copper Nickel Hollow Bar?

Typically, Copper Nickel Hollow Bars are made up of 90% copper and 10% nickel (or 70/30, depending on the grade), with trace amounts of iron and manganese to boost their strength and corrosion resistance. These bars are known for their outstanding resistance to seawater corrosion and biofouling. Their mechanical properties include a tensile strength ranging from 400 to 600 MPa, yield strength between 150 and 250 MPa, and an elongation of up to 30-35%. With excellent weldability, thermal stability, and formability, these hollow bars are perfect for challenging applications in high-moisture and high-pressure environments.

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Copper Nickel Hollow Bar Specifications

tandards: EN, DIN, JIS, ASTM, BS, ASME, AISI

Size: 5 mm to 200 mm

Length : 100 mm to 3660 mm Long

Specifications : ASTM / ASME SB 111

Form : Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc.

Finish : Bright, Polish & Black

Chemical Composition of Copper Nickel Hollow Bar Rods

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

Mechanical Properties of Copper Nickel Hollow Bar

Grade Melting point Density Tensilestrength Elongation Yieldstrength(0.2%Offset)
90/10 2260°F 8.8g/cm3 50000 PSi 30% 20000 PSi
70/30 2260°F 0.323 lb/in3 at 68°F 50000 PSi 30% 20000 PSi

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Test Certificate

  • Materials Certificate
  • MTC
  • 100% Radiography Test
  • Third Party Inspection

Why Neil Metals?

  • Large Inventory
  • Quality and Safety First
  • 24/7 Operation
  • On Time Delivery

Packaging

  • Wooden Case
  • Carton Box
  • Protective Paper
  • Bundle Packaging

Size chart of Copper Nickel Hollow Bar

Size
Chucked true to OD
Chucked true to ID
OD,
mm
ID,
mm
Max. OD,
mm
Min. ID,
mm
Max. OD,
in.
Min. ID,
in.
Max. OD,
mm
Min. ID,
mm
Max. OD,
in.
Min. ID,
in.
32
20
31
21.9
1.220
0.862
30
21
1.185
0.827
32
16
31
18
1.220
0.709
30
17
1.181
0.669
36
25
35
26.9
1.378
1.059
34.1
26
1.343
1.024
36
20
35
22
1.378
0.866
34
21
1.339
0.827
36
16
35
18.1
1.378
0.713
33.9
17
1.335
0.669
40
28
39
29.9
1.535
1.177
38.1
29
1.500
1.142
40
25
39
27
1.535
1.063
38
26
1.496
1.024
40
20
39
22.1
1.535
0.870
37.9
21
1.492
0.827
45
32
44
33.9
1.732
1.335
43.1
33
1.697
1.299
45
28
44
30
1.732
1.181
43
29
1.693
1.142
45
20
44
22.2
1.732
0.874
42.8
21
1.685
0.827
50
36
49
38
1.929
1.496
48
37
1.890
1.457
50
32
49
34.1
1.929
1.343
47.9
33
1.886
1.299
50
25
49
27.2
1.929
1.071
47.8
26
1.882
1.024
56
40
55
42
2.165
1.654
54
41
2.126
1.614
56
36
55
38.1
2.165
1.500
53.9
37
2.122
1.457
56
28
55
30.3
2.165
1.193
53.7
29
2.114
1.142
63
50
62
51.9
2.441
2.043
61.1
51
2.406
2.008
63
45
62
47
2.441
1.850
61
46
2.402
1.811
63
40
62
42.2
2.441
1.661
60.8
41
2.394
1.614
63
36
62
38.3
2.441
1.508
60.7
37
2.390
1.457
63
32
62
34.4
2.441
1.354
60.6
33
2.386
1.299
71
56
69.9
58
2.752
2.283
68.9
57
2.713
2.244
71
45
69.9
47.3
2.752
1.862
68.6
46
2.701
1.811
71
40
69.9
42.4
2.752
1.669
68.5
41
2.697
1.614
71
36
69.9
38.5
2.752
1.516
68.4
37
2.693
1.457
75
60
73.8
62
2.906
2.441
72.8
61
2.866
2.402
75
50
73.8
52.2
2.906
2.055
72.6
51
2.858
2.008
75
40
73.8
42.5
2.906
1.673
72.3
41
2.846
1.614
80
63
78.8
65
3.102
2.559
77.8
64
3.063
2.520
80
50
78.8
52.4
3.102
2.053
77.4
51
3.047
2.008
80
45
78.8
47.5
3.102
1.870
77.3
46
3.043
1.811
80
40
78.8
42.6
3.102
1.677
77.2
41
3.039
1.614
85
67
83.7
69.1
3.295
2.720
82.6
68
3.252
2.677
85
55
83.7
57.4
3.295
2.260
82.3
56.0
3.240
2.205
85
45
83.7
47.6
3.295
1.874
82.1
46.0
3.232
1.811
90
71
88.6
73.1
3.488
2.878
87.6
72.1
3.449
2.839
90
63
88.6
65.3
3.488
2.571
87.3
64.0
3.437
2.520
90
56
88.6
58.5
3.488
2.303
87.1
57.0
3.429
2.244
90
50
88.6
52.6
3.488
2.071
87.0
51.0
3.425
2.008
95
75
93.5
77.3
3.681
3.041
92.4
76.2
3.641
2.997
95
67
93.5
69.3
3.681
2.728
92.2
68.0
3.630
2.677
95
50
93.5
52.7
3.681
2.075
91.8
51.0
3.614
2.008
100
80
98.5
82.3
3.878
3.240
97.4
81.2
3.835
3.197
100
71
98.5
73.4
3.878
2.890
97.2
72.1
3.827
2.839
100
63
98.5
65.5
3.878
2.579
97.0
64.0
3.819
2.520
100
56
98.5
58.7
3.878
2.311
96.8
57.0
3.811
2.244
106
80
104.4
82.5
4.110
3.248
103.1
81.2
4.059
3.197
106
71
104.4
73.5
4.110
2.894
103.0
72.1
4.055
2.839
106
63
104.4
65.7
4.110
2.587
102.7
64.0
4.043
2.520
106
56
104.4
58.9
4.110
2.319
102.5
57.0
4.035
2.244
112
90
110.3
92.5
4.343
3.642
109.2
91.4
4.299
3.598
112
80
110.3
82.6
4.343
3.252
108.9
81.2
4.287
3.197
112
71
110.3
73.7
4.343
2.902
108.7
72.1
4.280
2.839
112
63
110.3
65.8
4.343
2.591
108.5
64.0
4.272
2.520
118
90
116.2
92.7
4.575
3.650
114.9
91.4
4.524
3.598
118
80
116.2
82.8
4.575
3.260
114.6
81.2
4.512
3.197
118
71
116.2
73.8
4.575
2.906
114.5
72.1
4.508
2.839
118
63
116.2
66.0
4.575
2.598
114.2
64.0
4.496
2.520
125
100
123.1
102.7
4.846
4.043
121.9
101.5
4.799
3.996
125
90
123.1
92.8
4.846
3.654
121.7
91.4
4.791
3.598
125
80
123.1
82.9
4.846
3.264
121.4
81.2
4.780
3.197
125
71
123.1
74.0
4.846
2.913
121.3
72.1
4.772
2.839
132
106
130.0
108.8
5.118
4.283
128.8
107.6
5.071
4.236
132
90
130.0
93.0
5.118
3.661
128.4
91.4
5.055
3.598
132
80
130.0
83.1
5.118
3.272
128.1
81.2
5.043
3.197
132
71
130.0
74.2
5.118
2.921
121.2
72.1
5.035
2.839
140
112
137.9
115
5.429
4.528
136.6
113.7
5.378
4.476
140
100
137.9
103.1
5.429
4.059
136.3
101.5
5.366
3.996
140
90
137.9
93.2
5.429
3.669
136.1
91.4
5.358
3.598
140
80
137.9
83.3
5.429
3.280
135.8
81.2
5.346
3.197
150
125
147.7
128.1
5.815
5.043
146.5
126.9
5.768
4.996
150
106
147.7
109.3
5.815
4.303
146
107.6
5.748
4.236
150
95
147.7
98.4
5.815
3.874
145.7
96.4
5.736
3.795
150
80
147.7
83.6
5.815
3.291
145.3
81.2
5.720
3.197
160
132
157.6
135.3
6.205
5.327
156.3
134
6.154
5.276
160
122
157.6
125.4
6.205
4.937
156
123.8
6.142
4.874
160
112
157.6
115.5
6.205
4.547
155.8
113.7
6.134
4.476
160
90
157.6
94.0
6.205
3.701
155.2
91.4
6.110
3.598
170
140
167.4
143.5
6.591
5.650
166
142.1
6.535
5.594
170
130
167.4
133.6
6.591
5.260
165.8
132
6.528
5.197
170
128
167.4
131.6
6.591
5.181
165.7
130
6.524
5.118
170
118
167.4
121.7
6.591
4.791
165.5
119.8
6.516
4.717
170
106
167.4
109.8
6.591
4.323
165.2
107.6
6.504
4.236
170
100
167.4
103.9
6.591
4.091
165
101.5
6.496
3.996
180
150
177.3
153.6
6.980
6.047
176
152.3
6.929
5.996
180
140
177.3
143.7
6.980
5.657
175.7
142.1
6.917
5.594
180
125
177.3
128.9
6.980
5.075
175.3
126.9
6.902
4.996
180
100
177.3
104.1
6.980
4.098
174.7
101.5
6.878
3.996
190
160
187.1
163.8
7.366
6.449
185.7
162.4
7.311
6.394
190
150
187.1
153.9
7.366
6.059
185.5
152.3
7.303
5.996
190
132
187.1
136
7.366
5.354
185.1
134
7.287
5.276
200
170
197.0
173.9
7.756
6.846
195.6
172.6
7.701
6.795
200
160
197.0
164
7.756
6.457
195.4
162.4
7.693
6.394
200
150
197.0
154.1
7.756
6.067
195.2
152.3
7.685
5.996
200
140
197.0
144.2
7.756
5.677
194.9
142.1
7.673
5.594
212
170
208.8
174.2
8.220
6.858
207.2
172.6
8.157
6.795
212
150
208.8
154.4
8.220
6.079
206.6
152.3
8.133
5.997
212
130
208.8
134.6
8.220
5.299
206.2
132
8.118
5.197
224
180
220.6
184.4
8.685
7.260
218.9
182.7
8.618
7.193
224
140
220.6
144.8
8.685
5.701
217.9
142.1
8.579
5.594
236
190
232.4
194.6
9.150
7.661
230.7
192.9
9.083
7.594
236
150
232.4
155.0
9.150
6.102
229.7
152.3
9.043
5.996
250
200
246.2
204.9
9.693
8.067
244.3
203.0
9.618
7.992
275
200
268.9
205.4
10.587
8.087
266.5
203.0
10.492
7.992

Equivalent grade of cupro nickel Hollow bar

GradeUNSWerkstoff Nr.
90/10C706002.0872
70/30C715002.0882

Modern Equipments

Expert Engineers

Well Maintained

Efficient Factories

Copper Nickel Hollow Bars Types

Cupro Nickel Hollow Bars
CuNi Hollow Rod
Copper Nickel Hot Rolled Hollow Bar
Cupro Nickel Cold Drawn Hollow Rod
Cupro Nickel Polished Hollow Bar
Cupro Nickel Cold Rolled Hollow Bar

ASTM B151 UNS C71500 Hollow Rod Dealer in Kolkata, Cupro Nickel Hollow Bar Manufacturer in Kolkata, Cupro Nickel Cold Drawn Hollow Bar Supplier in Kolkata, Copper Nickel Hollow Bars Size Chart, CUNI Hollow Bar Price in India, Stockist of Cunifer Hollow Rod in India, DIN 2.0872 Hollow Rod Exporter in Kolkata, Copper Nickel Hollow Rods Supplier in India, ASTM B111 Copper Nickel Hollow Bar Price List in Kolkata, ,UNS C70600 Hollow Rod Supplier in Kolkata

Frequently Asked Questions (FAQ)

Yes, copper nickel hollow bars are highly recyclable. Their metal composition allows for efficient recycling, reducing environmental impact and promoting sustainability in industries such as marine, oil, and gas.

 
 

Yes, copper nickel hollow bars are available in various finishes, including polished, brushed, matte, and custom finishes, allowing for different aesthetic and functional applications in industries like marine and chemical.

Yes, copper nickel hollow bars are highly customizable. They can be tailored in terms of size, length, wall thickness, and finish to meet specific industry requirements and applications.

Copper Nickel Hollow Bars Uses

Copper Nickel Hollow Bars are extensively utilized in industries that demand durable, corrosion-resistant materials for fluid and structural systems. In marine engineering, they play a crucial role in seawater pipelines, condensers, and heat exchangers. The offshore oil and gas sector depends on them for hydraulic lines, risers, and underwater equipment. In power generation, they are essential components in cooling water systems and turbine parts. Additionally, these hollow bars are employed in desalination plants, shipbuilding, and chemical processing industries due to their resistance to biofouling, pressure, and heat. Their structural integrity and corrosion resistance guarantee a long service life, even in the harshest environments.

food-industry
power-plant
eng-industry
oil-gas
petrochemical
gas-processing-plant

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Neil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kolkata, India

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  • Unit No. 12, Plot No. 8, Bidhannagar Industrial Estate EM Bypass, Kolkata, West Bengal – 700107 India

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