Cupro Nickel 90/10 Fasteners are a perfect combination of copper and nickel, with the addition of Manganese and other ferrous elements such as iron to combat seawater corrosion. Cupro Nickel 90/10 Bolts are highly available in environments that contain chloride or other halogens, such as marine environments. They have good oxidation resistance upto 1600 degrees Fahrenheit and continue services upto 1700 degrees Fahrenheit. Cupro Nickel 90/10 also has a high carbon content that restricts carbide precipitation during welding and applications requiring high corrosion resistance. Compared to other alloys, UNS C70600 90/10 Bolt also has better creep deformation characteristics and mechanical resistance to high temperatures. At elevated temperatures, these have high creep, stress to rupture, and tensile strength. They are used in chemical tankers, paper equipment, and other applications. Due to its high corrosion resistance property, it is widely used in the industry. It meets the metallic properties of the straight grade while maintaining a low carbon content due to the controlled addition of nitrogen. These DIN 2.0872 90/10 Head Bolts are designed according to the national and international raw material quality standards and guidelines.

The high oxidation rate of Cupro Nickel is 90/10 is evident in steam and moist air. The addition of chromium, niobium, iron, or Manganese to the CU Ni 90/10 Coated bolt increases its corrosion resistance and strength. These are naturally resistant to biofouling as well as they have excellent fabricability. They even have thermal stability even at high temperatures.
Largest Inventory
Customer Support
On Time Deliveries
ISO 9001 : 2015
Specification
Specifications | ASTM B 151 ASME SB 151 |
Standard | DIN, ASTM, BS and all International Standards |
Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
Length | 3 mm to 200 mm | Custom Sizes |
Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
Form | Hex, Threading, Square, Round as per Gauge Etc. |
Threads | Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically |
Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
Certification | Dual Certified As per ASTM & ASME Codes |
Test Certificate | As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
Raw materials Source | JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin,etc. |
Packing | IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request |
Surface Coating |
Cadmium Coating Hot Dipped Galvanizing Coating Ptfe Coated Nickel Alloy 200 Fasteners Phosphate Coating Teflon Coating Xylon Coating Zinc Coating |
Equivalent Grades
STANDARD | UNS | WERKSTOFF NR. |
Cupro Nickel 90/10 | C70600 | 2.0872 |
Chemical Composition
Grade | Cu | Pb | Mn | Fe | Zn | Ni |
Cu-Ni 90/10 | 88.6 min | 0.05 max | 1.0 max | 1.8 max | 1 max | 9-11 max |
Mechanical Properties
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 % |
Applications & Operations
We at DC Engineering make sure that our every product is made of high quality raw material. We thoroughly test each and every product before dispatching it to our customers. DC Engineering is one of the most trusted manufacturers and suppliers of fasteners and bolts which are applicable in various industries.
- Gas Processing Industries
- Petrochemical Industries
- Power Generation Industries
- Food Processing Industries
- Chemical Industries
- Oil & Gas Industries
- Fertilizers Industries
- Sugar Industries


Experimentation & Testing
DC Engineering is known for its accurate and perfect dimensions. We at DC engineering thoroughly test all our products before shipping them to the customers. We carry out destructive as well as non-destructive tests on all our products.
- Impact Analysis
- Eddy Current Examining
- Power Generation Industries
- Hydrostatic Analysis
- Prompt Test
- Positive Material Recognition
- Large-Scale Test
- Pitting Protection Test
Packaging & Dispatching
DC Engineering uses the most safest and the most effective ways of packaging for all types of deliveries. We pack our goods in various ways such as:
- Wooden Boxes
- Wooden Crates
- Wooden Pallets
- Carton Boxes
- Shrink-Wrapped
- Bubble Wrap Packing Material
- Laminated & Metallized Films
- Wooden or Plastic Crates

Cities We Export
Srinagar, Tamil Nadu, West Bengal, Vijayawada, Maharashtra, Rajkot, Karnataka, Akola, Amravati, Kanpur, Aurangabad, Andhra Pradesh, Saharanpur, Vasai, Varanasi, Faridabad, Bhadreswar, Jhansi, Nashik, Solapur, Surat, Nagpur, Raipur, Haryana, Buxar, Bhavnagar, Pune, Punjab, Banswara, Uttar Pradesh, Tadepalligudem, Manipur,Delhi, Dhanbad, Guntur, Gujarat, Ludhiana, Kalyani, Nagapattinam, Benin, Vadodara, Kerala, Patna, Ulhasnagar, Chhattisgarh, Mizoram, Chennai, Kurnool, Datia, Mangalore, Ambala, Kota, Miryalaguda, Orissa, Mumbai, Nagda, Bikaner, Ballia, Allahabad, Suryapet, Jaipur, Haora, Durgapur, Udgir, Jodhpur, Amritsar, Kalyan, Bangalore, Puducherry, Agra, Kolkata, Tirunelveli, Gujarat, India, Lucknow, Meerut, Dehradun, Bihar, Ujjain, Jharkhand, Ahmedabad, Coimbatore, Sadar, Jamnagar, Hyderabad, Chandigarh, Ranchi, Jamalpur, Ambattur, Jabalpur, Waghala, Nagaur, Gulbarga
Countries We Export
Iran, Ecuador, Mexico, Afghanistan, Bulgaria, Denmark, Kenya, Singapore, Portugal, Venezuela, Sri Lanka, Chile, Gabon, Colombia, Belgium, Peru, Belarus, Yemen, Thailand,France, Italy, Mexico, Greece, Kuwait, Romania, Iraq, Netherlands, Sweden, Switzerland, Lithuania, Lebanon, Poland, Philippines, United Kingdom, Norway, Angola, Kazakhstan, Taiwan, Nigeria, Poland, China, Nigeria, Spain, Mongolia, New Zealand, United States, Hungary, Libya, Serbia, Ukraine, Finland, South Africa, Iran, Vietnam, Israel, Czech Republic, Slovakia, Hong Kong, Azerbaijan, Qatar, Japan, Oman, Malaysia, Pakistan, Algeria, Bangladesh, Jordan, Indonesia, Russia, United Arab Emirates, Brazil, Estonia, Turkey, Austria, Croatia, Ghana, Bahrain, Korea, Canada, Bolivia, Costa Rica, Trinidad & Tobago, Tunisia, Chile, Morocco, Bhutan, Argentina, Egypt