Home > Copper Nickel > Copper Nickel 70/30 Stud Bolts
Fajar Metals, a reputable manufacturer and supplier based in Jakarta, Indonesia, specializes in high-performance Copper Nickel 70/30 Stud Bolts designed for exceptional durability in both marine and industrial settings. Made up of 70% copper and 30% nickel, these stud bolts are highly resistant to seawater corrosion, erosion, and biofouling, making them perfect for harsh environments. Fajar Metals produces Cu-Ni 70/30 stud bolts in a variety of sizes, thread types, and lengths to comply with international standards and meet specific customer needs. With a commitment to precision engineering and rigorous quality control, Fajar Metals delivers reliable fastening solutions for critical applications in offshore, marine, and chemical processing industries.
Copper Nickel 70/30 Stud Bolts are crafted from an alloy that consists of 70% Copper (Cu) and 30% Nickel (Ni), with minor additions of Iron (Fe) and Manganese (Mn) to enhance strength and corrosion resistance. These bolts are known for their outstanding resistance to pitting, crevice corrosion, and high-velocity seawater. Typical mechanical properties include a tensile strength ranging from 350 to 450 MPa, a yield strength of 150 to 200 MPa, and good elongation, ensuring reliable mechanical stability. This blend of corrosion resistance and structural integrity makes them perfect for securing components in demanding and corrosive environments.
| 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 Fajar Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Copper Nickel 70/30 Stud Bolts in Jakarta, Indonesia, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Indonesia, 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.
Copper Nickel 70/30 stud bolts are widely used in marine and offshore applications due to their unusual resistance to sea corrosion and biofouling and are ideal for securing flange valves and pipelines in shipbuilding, desalination plants and in oil and gas platforms. These bolts are used in heat exchangers and condensers where high temperature and corrosion resistance are required. In addition, copper nickel 70/30 stud bolts are used in the electrical generation and chemical industry, where they provide a reliable fastening solution in harsh and hot environments, and monitoring realize the authenticity and durability of materials and equipment.
