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Punit Fasteners is a prominent manufacturer and supplier of high-quality Copper Nickel 70/30 Stud Bolts located in Delhi, India. We are known for our precise engineering and top-grade materials, serving various industries in both domestic and international markets. Our Copper Nickel 70/30 Stud Bolts are produced using modern technology and strict quality control methods to meet global standards. With their corrosion resistance and strong durability, they are perfect for marine and chemical uses. At Punit Fasteners, we provide custom sizes and timely delivery to match our clients’ needs. We are dedicated to offering reliable fastening solutions with consistent performance and durability.
Copper Nickel 70/30 Stud Bolts consist of about 70% copper and 30% nickel, with small amounts of iron and manganese to improve corrosion resistance and mechanical strength. These stud bolts show excellent tensile strength (around 340 to 500 MPa) and decent yield strength (about 105 to 220 MPa). They also resist seawater corrosion, stress corrosion cracking, and biofouling. With a melting point of around 1170°C and a Brinell hardness of 80 to 100, this specific composition makes them fit for high-stress environments and marine operations.
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 |
| Density | Elongation | Yield Strength (0.2%Offset) | Melting Point | Tensile Strength |
| 8.1 g/cm3 | 30 % | Psi – 35,000, MPa – 241 | 1443 °C (2430 °F) | Psi -80,000, MPa -551 |
| Material | Copper Nickel Stud Bolts |
|---|---|
| Grades | Cooper Nickel 70/30 |
| ASTM / ANSI | ASME SB 151/ ASTM B151 |
| Size | M2 – M160 |
| Threads: | BSW, METRIC, UNF, UNC, BSF,or as required |
| Copper Nickel 70/30 Stud Bolts Length | 3 mm to 200 mm |
| other sizes | M20, M2, M12, M2.5, M10, M6, M24, M4, M3, M30, M5, M36, M8, M14, M16 etc. |
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.
Copper Nickel 70/30 Stud Bolts are widely used in shipbuilding, desalination plants, offshore platforms, and heat exchangers. Their remarkable resistance to saltwater corrosion and biofouling makes them suitable for marine and coastal applications. These bolts are also common in the chemical industry, especially in acidic and saline environments. In power generation, especially in condenser tubes and piping systems, they provide long-lasting and dependable service. Their ability to perform under high temperatures further expands their application range. Whether for piping, flanges, or structural joining, these stud bolts offer reliable performance in corrosive and challenging conditions.
Copper Nickel 70/30 stud bolts at Punit Fasteners are packed in a way that retains their quality. Every stud bolt is protected and packed individually in moisture proof containers to ensure it is not damaged or contaminated. Proper labeling of the products makes it easier to identify them and also to manage them with a lot of ease. Our packaging process ensures that the stud bolts are well protected and are in good condition when they get to the customers, thus our promise of quality products and services.
Punit Fasteners is a leading manufacturer and supplier of high-quality fasteners in Delhi, India, with over 15 years of experience serving global industries.
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