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The Fasteners Mart, Mumbai, India is a reliable supplier and manufacturer of industrial fasteners of high quality. We export Copper Nickel 70/30 washers that are made of UNS C71500 grade having 70% copper and 30% nickel content. Flat, lock, and special shaped washers with superior strength and corrosion resistance in marine and industrial applications are provided.
Copper Nickel 70/30 Washers are made up of 70% copper and 30% nickel, with small amounts of iron and manganese for increased strength and resistance to corrosion. They have good fine mechanical properties, including a tensile strength of 310–500 MPa and a yield strength of 105–275 MPa, with good ductility and hardness. Physically, they have a density of 8.95 g/cm³ and a melting point of approximately 1170°C. They also exhibit excellent thermal conductivity, electrical conductivity, as well as seawater corrosion and biofouling resistance, hence their applications in challenging marine and industrial processes.
Grade | Cu | Mn | Pb | Ni | Fe | Zn |
Cupro Nickel 70/30 | 88.6 min | 1.0 max | 0.05 max | 9-11 max | 1.8 max | 1 max |
Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
Cupro Nickel 70/30 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| Specifications | ASTM / ASME SB 61 / 62 / 151 / 152 |
| Dimensions | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
| Size | 1/2” to 12″ |
| Standards | ASTM, ASME Washer, ANSI Washer, DIN Washer, EN Washer, BS Washer etc |
| Grade | Copper & Copper Nickel Nickel 70/30 (C71500) |
| Class | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
CuNi 70/30 Washers are mostly used in offshore and marine environments due to their improved seawater corrosion resistance, erosion, and biofouling. They are commonly utilized in shipbuilding, desalination plants, and submarine piping systems for locking safe and durable seals. These washers are also most suitable for power generation equipment, condensers and heat exchangers. Where high performance at pressure and temperature is required. In oil & gas and chemical processing applications their non-magnetic and anti-sparking properties make them reliable for hazardous and sensitive applications, ensuring safety, stability, and long-term performance.
We provide affordable and reliable delivery services for Copper Nickel 70/30 washers to ensure that they arrive at your domestic and global destinations on time. All the washers are properly packed in high-quality materials like bubble wraps, cartons, or wooden boxes to ensure minimal damage while being delivered. Our effective packaging and timely tracking guarantee safe, timely, and easy delivery to your destination.
The Fasteners Mart is a leading manufacturer and supplier of high-quality fasteners in Mumbai, India, with over 8 years of experience serving global industries.
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