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Welcome to GIC Fasteners, your premier source for top-notch industrial solutions. We take pride in introducing our comprehensive range of Cupro Nickel 70/30 Washers, meticulously crafted to meet and exceed the stringent standards set by organizations such as DIN, ASTM, ISO, and BS. Our CuNi 70/30 Washers, compliant with equivalent international standards, are engineered for superior durability and corrosion resistance, making them the ideal choice for a wide spectrum of applications. Trust GIC Fasteners for precision-manufactured solutions that adhere to the highest industry standards, ensuring exceptional performance and reliability in your projects.
GIC Fasteners, a name synonymous with precision engineering, proudly offers a diverse range of Cupro Nickel 70/30 Washers that are engineered to excel in various applications. Renowned for their exceptional durability and corrosion resistance, our CuNi 70/30 washers are the preferred choice across industries. These washers are not just reliable; they are also highly versatile, thanks to their high thermal conductivity. Whether you need them for marine environments, medical equipment, or any application demanding top-notch performance, our Cupro Nickel 70/30 Washers are the solution you can trust.
At GIC Fasteners, we are committed to quality that adheres to the highest industry standards. Our CuNi 70/30 washers are designed to require minimal maintenance, reducing your operational costs while ensuring consistent performance. For all your specific requirements or to place an order, don’t hesitate to reach out to us at sales@gicfasteners.com. Elevate your projects with GIC Fasteners’ expertise and precision. Let us be your trusted partner in achieving excellence.
| Specifications | : | ASTM B151 / ASTM B152 |
| Standard | : | DIN, ASTM, BS, ISO and all International Standards |
| Size | : | M02 to M33 |
| Length | : | 3 mm to 200 mm |
| Type | : | Flat Washers, Spring Lock Washers, Sealing Washer, Split Washer, Slot Washer, Machine Washer, Star Washer, Fender Washers, Wave Washers, Hex Washers, Internal Tab Washers, etc. |
| Cu-Ni 70/30 | Cu | Pb | Mn | Fe | Zn | Ni |
| 88.6 min | 0.05 max | 1.0 max | 1.8 max | 1 max | 9-11 max |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.1 g/cm3 | 1443 °C (2430 °F) | Psi – 35,000, MPa – 241 | Psi -80,000, MPa -551 | 30 % |
| STANDARD | UNS | WERKSTOFF NR. |
| Cupro Nickel 70/30 | C70600 | 2.0872 |
Bolt Size
|
USS
|
SAE
|
||||
OD (in.)
|
ID (in.)
|
Thickness
|
OD (in.)
|
ID (in.)
|
Thickness
|
|
1/8 (#6)
|
-
|
-
|
-
|
0.375
|
0.156
|
.036/.065
|
5/32 (#8)
|
-
|
-
|
-
|
0.438
|
0.188
|
.036/.065
|
3/16 (#10)
|
0.560
|
0.250
|
.036/.065
|
0.500
|
0.220
|
.036/.065
|
7/32 (#12)
|
-
|
-
|
-
|
0.562
|
0.250
|
.051/.080
|
1/4 (#14)
|
0.734
|
0.312
|
.051/.080
|
0.625
|
0.281
|
.051/.080
|
5/16
|
0.875
|
0.375
|
.064/.104
|
0.688
|
0.344
|
.051/.080
|
3/8
|
1.000
|
0.438
|
.064/.104
|
0.812
|
0.406
|
.051/.080
|
7/16
|
1.250
|
0.500
|
.064/.104
|
0.922
|
0.469
|
.051/.080
|
1/2
|
1.375
|
0.562
|
.086/.132
|
1.062
|
0.531
|
.074/.121
|
9/16
|
1.469
|
0.625
|
.086/.132
|
1.156
|
0.594
|
.074/.121
|
5/8
|
1.750
|
0.688
|
.108/.160
|
1.312
|
0.656
|
.074/.121
|
3/4
|
2.000
|
0.812
|
.122/.177
|
1.469
|
0.812
|
.108/.160
|
7/8
|
2.250
|
0.938
|
.136/.192
|
1.750
|
0.938
|
.108/.160
|
1
|
2.500
|
1.062
|
.136/.192
|
2.000
|
1.062
|
.108/.160
|
1 1/8
|
2.750
|
1.250
|
.136/.192
|
2.250
|
1.250
|
.108/.160
|
1 1/4
|
3.000
|
1.375
|
.136/.192
|
2.500
|
1.375
|
.136/.192
|
1 3/8
|
3.250
|
1.500
|
.153/.213
|
2.750
|
1.500
|
.136/.213
|
1 1/2
|
3.500
|
1.625
|
.153/.213
|
3.000
|
1.625
|
.153/.213
|
1 5/8
|
3.750
|
1.750
|
.153/.213
|
-
|
-
|
-
|
1 3/4
|
4.000
|
1.875
|
.153/.213
|
-
|
-
|
-
|
1 7/8
|
4.250
|
2.000
|
.153/.213
|
-
|
-
|
-
|
2
|
4.500
|
2.125
|
.153/.213
|
-
|
-
|
-
|
2 1/4
|
4.750
|
2.375
|
.320/.248
|
-
|
-
|
-
|
2 1/2
|
5.000
|
2.625
|
.210/.280
|
-
|
-
|
-
|
2 3/4
|
5.250
|
2.875
|
.228/.410S
|
-
|
-
|
-
|
3
|
5.500
|
3.125
|
.249/.327
|
-
|
-
|
-
|
Size |
USS |
SAE |
||||
|---|---|---|---|---|---|---|
Inside Diameter (A) |
Outside Diameter (B) |
Thickness (C) |
Inside Diameter (A) |
Outside Diameter (B) |
Thickness (C) |
|
#2 |
- |
- |
- |
3/32" |
1/4" |
0.020" |
#4 |
- |
- |
- |
1/8" |
5/16" |
0.032" |
#6 |
- |
- |
- |
5/32" |
3/8" |
0.049" |
#8 |
- |
- |
- |
3/16" |
7/16" |
0.049" |
#10 |
- |
- |
- |
7/32" |
1/2" |
0.049" |
#12 |
- |
- |
- |
1/4" |
9/16" |
0.065" |
1/4" |
5/16" |
0.734" |
0.065" |
9/32" |
5/8" |
0.065" |
5/16" |
3/8" |
7/8" |
0.083" |
11/32" |
11/16" |
0.065" |
3/8" |
7/16" |
1" |
0.083" |
13/32" |
13/16" |
0.065" |
7/16" |
1/2" |
1-1/4" |
0.083" |
15/32" |
15/16" |
0.065" |
1/2" |
9/16" |
1-3/8" |
0.109" |
17/32" |
1-1/16" |
0.095" |
9/16" |
5/8" |
1-15/32" |
0.109" |
19/32" |
1-5/32" |
0.095" |
5/8" |
11/16" |
1-3/4" |
0.134" |
21/32" |
1-5/16" |
0.095" |
3/4" |
13/16" |
2" |
0.148" |
13/16" |
1-15/32" |
0.134" |
7/8" |
15/16" |
2-1/4" |
0.165" |
15/16" |
1-3/4" |
0.134" |
1" |
1-1/16" |
2-1/2" |
0.165" |
1-1/16" |
2" |
0.134" |
1-1/8" |
1-1/4" |
2-3/4" |
0.165" |
- |
- |
- |
1-1/4" |
1-3/8" |
3" |
0.165" |
- |
- |
- |
1-3/8" |
1-1/2" |
3-1/4" |
0.180" |
- |
- |
- |
1-1/2" |
1-5/8" |
3-1/2" |
0.180" |
- |
- |
- |
1-5/8" |
1-3/4" |
3-3/4" |
0.180" |
- |
- |
- |
1-3/4" |
1-7/8" |
4" |
0.180" |
- |
- |
- |
2" |
2-1/8" |
4-1/2" |
0.213" |
- |
- |
- |
| Industry/Applications | Usage |
|---|---|
| Marine | Extensively used in marine applications, including shipbuilding, offshore platforms, and seawater pipelines, due to its exceptional resistance to corrosion in saltwater environments. |
| Oil and Gas | Applied in the oil and gas industry for subsea equipment, heat exchangers, and pipelines where resistance to corrosion and biofouling is critical. |
| Heat Exchangers | Utilized in heat exchangers and condensers for efficient heat transfer, particularly in applications involving saline or corrosive fluids. |
| Potable Water Systems | Safe for use in potable water systems, Cupro Nickel 70/30 Washers comply with drinking water standards due to their non-toxic and corrosion-resistant properties. |
| Nuclear Power | Found in nuclear power plants for their resistance to corrosion and radiation, used in reactor components and cooling systems. |
| Industrial Equipment | Applied in various industrial equipment and machinery where corrosion resistance and durability are crucial. |
| Desalination | Used in desalination plants to withstand the corrosive effects of saltwater during the desalination process. |
Explore our comprehensive range of products, ensuring you find the perfect solution for your specific requirements.
Save money without compromising on quality, thanks to our competitive prices and cost-effective options.
Personalized assistance, prompt responses, and a commitment to meeting your needs, making your purchase process seamless.
Cupro Nickel 70/30 is a copper-nickel alloy renowned for its outstanding corrosion resistance, making it an ideal choice for washers used in marine and underwater applications, where exposure to saltwater and brine is common. Its 70% copper content provides excellent conductivity, while the 30% nickel component enhances resistance to corrosion.
Absolutely, Cupro Nickel 70/30 Washers are safe for use in potable water systems, complying with international standards for drinking water applications due to their non-toxicity and corrosion resistance.
Cupro Nickel 70/30 Washers maintain their structural integrity and corrosion resistance even in high-pressure conditions, making them suitable for critical applications in industries like oil and gas.
Yes, Cupro Nickel 70/30 Washers are compatible with various materials, including stainless steel and carbon steel, offering versatility for diverse industries and applications.
Cupro Nickel 70/30 Washers excel in marine environments due to their superior resistance to seawater corrosion and biofouling, making them a preferred choice for shipbuilding and offshore structures.
Certainly, we offer customization options for Cupro Nickel 70/30 Washers to meet your specific project requirements. Contact our team, and we'll assist you in finding the right size and dimensions.
Cupro Nickel 70/30 Washers are environmentally friendly and recyclable, contributing to sustainability and reducing the environmental impact of your projects.
While Cupro Nickel 70/30 Washers are known for their durability in marine environments, periodic inspection and cleaning are recommended to ensure optimal performance and longevity.
Cupro Nickel 70/30 Washers offer excellent cost-effectiveness due to their longevity and low maintenance requirements, making them a smart investment for various industries.
