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Copper Nickel 70/30 Fasteners Supplier

Copper nickel 70/30 is a copper alloy that contains 70 percent copper and 30 percent nickel. Its main advantages are its resistance to corrosion and biofouling. Copper nickel 70/30 is often used in marine, power generation, and industrial settings where there is a need for materials that can withstand harsh environments, salt water & high-temperature operations.

Copper Nickel 70/30 Fasteners, Ped Approved Manufacturer of CuNi 70/30 Fasteners, Cupro Nickel 70/30 Fastener, Copper Nickel 70/30 Fasteners Manufacturer In India, Copper Nickel 70/30 Fasteners Stockist In Mumbai, Copper Nickel 70/30 Fasteners Manufacturer In Mumbai, Copper Nickel 70/30 Fasteners Supplier In Mumbai, Copper Nickel 70/30 Fasteners Stockist In India, 70/30 Copper Nickel Fasteners, Copper Nickel 70/30 Fasteners Supplier In India, Cu Ni 70/30 Fasteners Supplier In India, Cu Ni 70/30 Fasteners Supplier, Cu Ni 70/30 Fasteners Stockist, Cu Ni 70-30 Bolts And Nuts Washers Suppliers In Mumbai.

One of the main features of Copper Nickel 70/30 Fasteners is that they are highly durable & corrosion-resistant. This means they can withstand exposure to seawater & other corrosive environments without rust or degradation. The benefits of using copper-nickel 70/30 fasteners are numerous. Cu Ni 70-30 Nuts offer superior strength and durability, which means they can withstand harsh environments & conditions. Copper-nickel 70/30 fasteners require very little maintenance over their lifespan, which can result in significant cost savings over time. 

CuNi 70/30 Fasteners are widely used in various applications, including marine and offshore projects, power generation, heat exchangers, etc. One example of a project that can benefit from copper-nickel 70/30 fasteners is the offshore oil drilling industry. Fasteners must be highly durable & corrosion-resistant in these environments to ensure worker safety and avoid environmental damage.

Cupro Nickel 70/30 Fastener are high-strength, corrosion-resistant fasteners made of a copper-nickel alloy containing 70% copper and 30% nickel. These fasteners have exceptional resistance to seawater, brine solutions, and other harsh environments, making them ideal for marine & offshore applications. At Neelkamal Alloys LLP, we offer a variety of high-quality Copper Nickel Products, including Copper Nickel 90/10 Fasteners, Copper Nickel Nuts and more.

One of the most notable features of Cu Ni 70/30 Fasteners is their excellent resistance to corrosion and biofouling, making them ideal for use in seawater and other corrosive environments. They are also highly resistant to stress corrosion cracking, erosion & cavitation damage. We offer a wide range of products, including Hastelloy C276 Bolts, Alloy 20 Nuts, & many more.

Another key feature of Cu Ni 70-30 Bolts is their strength and toughness. These fasteners have a high yield strength and can withstand high levels of stress & strain without deformation or failure. ASTM B151 Cupro Nickel 70/30 Bolts are also highly malleable & can be easily formed or fabricated into various shapes & sizes. Copper Nickel 70/30 Fasteners are also highly resistant to temperature changes & have a low coefficient of thermal expansion. This means they can withstand significant changes in temperature without deforming or losing their mechanical properties.

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Specification For Copper Nickel 70/30 Fasteners

Standard ASTM B151 / B152, ASME SB151 / SB152
Bolt / Screw Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Nuts Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Washers Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Machine Screws Size M1.6 – M12
Self Tapping Screw Size No.2 – No. 14
Length 3 mm to 200 mm
Threads UNF, BSW, BSF, METRIC, UNC, or as required
Fasteners
  • DIN : DIN 934, DIN 931, DIN 970, DIN 933
  • UTS : UNEF, NPT, UNC, UNS, UNF, NPTF
  • ISO : JIS standards, ISO 4033, ISO 4032,
  • ANSI – American National Standards Institute
  • ASME B18.5
  • ANSI B 28.2.4 1M
  • as per defined in ASME B16.5 standard Copper Nickel 70/30 Stud Bolt length
  • ANSI B 18.2.4 2M
  • as per defined in ASME B18.2.2 CuNi 70/30 Hex nuts
Form Hex, Threading, Square, Round as per Gauge Etc.
Raw materials Source JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin,etc.
Threads Configuration ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Certification Dual Certified As per ASTM & ASME Codes
Dimensions DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
Threads Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically
Test Certificate as per EN 10204 / 3.1 Manufacturer Test Certificate
Additional Certifications PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Production process M24-M100: hot forging , M2-M24: Cold Froging, for custom-made connecting element machining and CNC

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Copper Nickel 70/30 Fasteners

Equivalent Grades Of Copper Nickel 70/30 Fasteners

STANDARD WERKSTOFF NR. UNS
Copper Nickel 70/30 2.0882 C71500

ASTM B152 Copper Nickel 70/30 Fasteners Chemical Composition

Grade Cu Mn Pb Ni Fe Zn
Cu-Ni 70-30 65.0 min 1 max .05 max 29-33 0.4-1.0 1 max

70/30 Copper Nickel Fasteners Mechanical Properties

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Copper Nickel 70-30 0.323 lb/in3 at 68 F 2260 F 50000 psi 20000 psi 30 %

Copper Nickel 70/30 Hex Bolt Dimension

NOMINAL SIZE (D)BODY DIAMETER HEAD THICKNEASTM  ACROASTM  THE FLATS ACROASTM CORNERS 
 D (MAX)D (MIN)H (MAX)H (MIN)F (MAX)F (MIN)C (MAX)C (MIN)
m1010.009.786.636.1717.0015.7318.4817.77
m1212.0011.737.764.2419.0017.7320.7820.03
m1414.0013.739.098.5122.0020.6724.2523.35
m1616.0015.7310.329.6824.0023.6727.7126.75
m2020.0019.6712.8812.1230.0029.1634.6432.95
m2424.0023.6715.4414.5636.0035.0041.5739.55
m3030.0029.6719.4817.9246.0045.0053.1250.85
m3636.0035.6123.3821.6355.0053.8063.5160.79
m4242.0041.3826.9725.0365.0062.9075.0671.71
m4848.0047.3831.0728.9375.0072.6086.6082.76
m5656.0055.2636.233.8085.0082.2098.1593.71
m6464.0063.2641.3238.6895.0091.80109.70104.65
m7272.0071.2646.4543.55105.00101.40121.24115.60
m8080.0079.2651.5848.42115.00111.00132.72126.54
m9090.0089.1357.7454.26130.00125.50150.11143.07
m10090.0099.1363.960.10145.00140.00167.43159.60

Size Chart of 70/30 Copper Nickel Nuts

Nut Size (mm)
Diameter* (mm)
Height (mm)
Hex Nut
Jam Nut
Nylock Nut
2mm
4
1.6
1.2
2.5mm
5
2
1.6
3mm
5.5
2.4
1.8
4
4mm
7
3.2
2.2
5
5mm
8
4
2.7
5
6mm
10
5
3.2
6
7mm
11
5.5
3.5
8mm
13
6.5
4
8
10mm
17
8
5
10
12mm
19
10
6
12
14mm
22
11
7
14
16mm
24
13
8
16
18mm
27
15
9
18.5
20mm
30
16
10
20
* This is the diameter across the flats. It is also the size of wrench to use.

Dimensions of Copper Nickel 70/30 Heavy Hex Nuts

Nominal Size or Basic Major Thread Diameter
F
G
H
Width Across Flats
Width Across Corners
Thickness
Basic
Max
Min
Max
Min
Basic
Max
Min
1/4
.2500
1/2
.500
.488
.577
.556
15/64
.250
.218
5/16
.3125
9/16
.562
.546
.650
.622
19/64
.314
.280
3/8
.3750
11/16
.688
.669
.794
.763
23/64
.377
.341
7/16
.4375
3/4
.750
.728
.866
.830
27/64
.441
.403
1/2
.5000
7/8
.875
.850
1.010
.969
31/64
.504
.464
9/16
.5625
15/16
.938
.909
1.083
1.037
35/64
.568
.526
5/8
.6250
1-1/16
1.062
1.031
1.227
1.175
39/64
.631
.587
3/4
.7500
1-1/4
1.250
1.212
1.443
1.382
47/64
.758
.710
7/8
.8750
1-7/16
1.438
1.394
1.660
1.589
55/64
.885
.833
1
1.0000
1-5/8
1.325
1.575
1.876
1.796
63/64
1.012
.956
1-1/8
1.1250
1-13/16
1.812
1.756
2.093
2.002
1-7/64
1.139
1.079
1-1/4
1.2500
2
2.000
1.938
2.309
2.209
1-7/32
1.251
1.187
1-3/8
1.3750
2-3/16
2.188
2.119
2.526
2.416
1-11/32
1.378
1.460
1-1/2
1.5000
2-3/8
2.375
2.300
2.742
2.622
1-15/32
1.505
1.433
1-5/8
1.6250
2-9/16
2.562
2.481
2.959
2.828
1-19/32
1.632
1.556
1-3/4
1.7500
2-3/4
2.750
2.662
3.175
3.035
1-23/32
1.759
1.679
2
2.0000
3-1/8
3.125
3.025
3.608
3.449
1-31/32
2.013
1.925
2-1/4
2.2500
3-1/2
3.500
3.388
4.041
3.862
2-13/64
2.251
2.155
2-1/2
2.5000
3-7/8
3.875
3.750
4.474
4.275
2-29/64
2.505
2.401
2-3/4
2.7500
4-1/4
4.250
4.112
4.907
4.688
2-45/64
2.759
2.647
3
3.0000
4-5/8
4.625
4.475
5.340
5.102
2-61/64
3.013
2.893
3-1/4
3.2500
5
5.000
4.838
5.774
5.515
3-3/16
3.252
3.124
3-1/2
3.5000
5-3/8
5.375
5.200
6.207
5.928
3-7/16
3.506
3.370
3-3/4
3.7500
5-3/4
5.750
5.562
6.640
6.341
3-11/16
3.670
3.616
4
4.0000
6-1/8
6.125
5.925
7.073
6.755
3-15/16
4.014
3.862

Copper Nickel 70/30 Hex Nuts Dimension

Nominal Size or Basic Major Thread Diameter
F
G
H
Width
Across Flats
Width
Across Corners
Thickness
Basic
Max
Min
Max
Min
Basic
Max
Min
1/4
.2500
7/16
.438
.428
.505
.488
7/32
.226
.212
5/16
.3125
1/2
.500
.489
.577
.557
17/64
.273
.258
3/8
.3750
9/16
.562
.551
.650
.628
21/64
.337
.479
7/16
.4375
11/16
.688
.675
.794
.768
3/8
.385
.365
1/2
.5000
3/4
.750
.736
.866
.840
7/16
.448
.427
9/16
.5625
7/8
.875
.861
1.010
.982
31/64
.496
.473
5/8
.6250
15/16
.938
.922
1.083
1.051
35/64
.559
.535
3/4
.7500
1-1/8
1.125
1.088
1.299
1.240
41/64
.665
.617
7/8
.8750
1-5/16
1.312
1.269
1.516
1.447
3/4
.776
.724
1
1.0000
1-1/2
1.500
1.450
1.732
1.653
55/64
.887
.831
1-1/8
1.1250
1-11/16
1.688
1.631
1.949
1.859
31/32
.999
.939
1-3/8
1.3750
2-1/16
2.062
1.994
2.382
2.273
1-11/64
1.206
1.138
1-1/2
1.500
2-1/4
2.250
2.175
2.598
2.480
1-9/32
1.ASTM B151 GR. 8
1.245
1-5/8
1.6250
2-7/16
2.438
2.356
2.815
2.686
1-25/64
1.429
1.353
1-3/4
1.7500
2-5/8
2.625
2.538
3.031
2.893
1-1/2
1.540
1.460
2
2.0000
3
3.000
2.900
3.464
3.306
1-23/32
1.763
1.675
2-1/4
2.2500
3-3/8
3.375
3.263
3.897
3.719
1-15/16
1.986
1.890
2-1/2
2.5000
3-3/4
3.750
3.625
4.330
4.133
2-5/32
2.209
2.105
2-3/4
2.7500
4-1/8
4.125
3.988
4.763
4.546
2-3/8
2.431
2.319

Various Types of Copper Nickel 70/30 Fasteners

Copper Nickel 90/10 Screws

Copper Nickel Screws

Copper Nickel 90/10 Stud Bolts

Copper Nickel Stud Bolts

Copper Nickel 90/10 Rivet

Copper Nickel Rivet

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Argentina, Bulgaria, Canada, Bolivia, Angola, Gabon, Ukraine, United States, Taiwan, Switzerland, Israel, New Zealand, Qatar, Ghana, Malaysia, Greece, Norway, United Kingdom, Germany, China, Chile, Slovakia, Nigeria, Singapore, Poland, Peru, Saudi Arabia, Brazil, Tunisia, Yemen, Sri Lanka, Kenya, Lithuania, Gambia, Philippines, Kuwait, Ireland, Iraq, Lebanon, Spain, Trinidad & Tobago, Libya, Morocco, Indonesia, Serbia, Denmark, Japan, Zimbabwe, Mongolia, Sweden, Italy, India, France, Austria, Puerto Rico, Jordan, Thailand, Afghanistan, Costa Rica, Croatia, Iran, Kazakhstan, Finland, Ecuador, Bahrain, Mexico, Nigeria, Azerbaijan, Hungary, Belarus, Australia, Estonia, Pakistan, Oman, Vietnam, Romania, Czech Republic, Netherlands, Bhutan, Turkey, Mexico, Hong Kong, Egypt, Macau, Nepal, United Arab Emirates, Belgium, Bangladesh, Namibia, Portugal, Chile, Colombia, Tibet, South Korea, Algeria, South Africa, Iran, Poland, Russia, Venezuela.

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Bogota, Madrid, Melbourne, Haryana, Ludhiana, New York, Mumbai, Edmonton, Toronto, Hyderabad, Karachi, Dubai, Al Jubail, Doha, Gurgaon, Mexico City, Chennai, Surat, Visakhapatnam, Ho Chi Minh City, Secunderabad, Atyrau, Santiago, Dammam, Hanoi, Singapore, Seoul, London, Aberdeen, Lahore, Cairo, Caracas, Kanpur, Jakarta, Abu Dhabi, Los Angeles, Ahvaz, Indore, Ernakulam, Busan, Chandigarh, Pimpri-Chinchwad, Rio de Janeiro, Gimhae-si, Vadodara, Thane, Brisbane, Rajkot, Ankara, Kuwait City, Bengaluru, Colombo, Granada, Sydney, Bangkok, Noida, Lagos, Perth, Faridabad, Vung Tau, Nagpur, Jeddah, Ranchi, Manama, Calgary, Navi Mumbai, Pune, Ulsan, Ahmedabad, Coimbatore, New Delhi, Nashik, Milan, Al Khobar, Jamshedpur, Houston, Petaling Jaya, Tehran, Riyadh, Montreal, Kuala Lumpur, Chiyoda, Baroda, Muscat, Jaipur, Thiruvananthapuram, Port-of-Spain, Courbevoie, Hong Kong, Moscow, La Victoria, Kolkata, Algiers, Sharjah, Howrah, Istanbul, Dallas, Bhopal, Geoje-si.