Home > Copper Nickel > Copper Nickel 70/30 Stud Bolts
Tanvir Nickel Alloys, located in Cairo, Egypt, stands out as a trusted manufacturer and supplier of Copper Nickel 70/30 Stud Bolts, crafted for high-performance fastening in challenging marine and industrial settings. These stud bolts are produced with meticulous attention to detail and undergo rigorous quality checks to meet international standards. Renowned for their exceptional corrosion resistance, particularly in seawater and brine environments, Tanvir’s Copper Nickel 70/30 Stud Bolts find extensive application in shipbuilding, offshore platforms, chemical processing, and desalination plants, where durability and longevity are crucial.
The Copper Nickel 70/30 Stud Bolts are composed of an alloy that features around 70% copper and 30% nickel, with additional iron and manganese to boost strength and corrosion resistance. They boast a tensile strength ranging from 275 to 350 MPa and a yield strength between 105 and 150 MPa, along with impressive elongation and thermal stability. These characteristics make them highly resistant to pitting, stress corrosion cracking, erosion, and biofouling in seawater and chemically aggressive settings. Their robust mechanical and corrosion-resistant traits ensure secure, long-lasting fastening in both submerged and high-temperature applications.
| Specifications | ASTM B151 / ASME SB151 |
| Diameter | 1/4″-3″ Matric:M27 to M72 in length 2000mm |
| Dimensions | DIN 975/976, ASME B18.2.1, B18.31.3, B16.5 |
| DIN Standard | B.S. DIN 931, DIN 933, DIN 912, DIN 934, DIN 6923, DIN 603, DIN 7981, DIN 970, DIN916, DIN 7982, DIN 7985, DIN 913 |
| UTS | NPT, UNS, UNF, UNC, UNEF, NPTF |
| ISO | ISO 4033, ISO 4032, ISO 7380, ISO 4017, JIS standards |
| Threads | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Type | Cold Forged, Hot Forged, Bar Stock Machined, Bar Stock Milling |
| Element | Cu | Mn | Pb | Ni | Fe | Zn |
| Copper Nickel 70/30 | 65.0 min | 1 max | .05 max | 29-33 | 0.4-1.0 | 1 max |
| 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 % |
At Tanvir Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Copper Nickel 70/30 Stud Bolts in Cairo, Egypt, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Egypt, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
In marine and offshore settings, Copper Nickel 70/30 Stud Bolts are frequently utilized for flanged connections in piping systems, pumps, valves, heat exchangers, and pressure vessels. They excel in environments exposed to seawater, saline spray, and corrosive fluids, such as ship engine rooms, ballast systems, and desalination units. Their enduring resistance to corrosion and low maintenance needs make them a top choice for critical infrastructure projects in the power generation, oil and gas, and coastal construction sectors.
