Sumit Impex is a leading manufacturer, Supplier and exporter of Cupro-Nickel 70-30 and 90-10 Nuts, renowned for their superior quality and long-lasting performance. We prioritize excellence by carefully selecting high-quality raw materials for our manufacturing processes. These premium materials ensure the reliability and durability of our nuts, meeting the stringent standards of various industries. With a firm commitment to quality assurance, We continue to be the preferred option for acquiring high-quality Cupro-Nickel nuts globally, addressing various industrial requirements with precision and reliability.

Sumit Impex is a Supplier of Cupro Nickel 70/30 Nuts, Biggest Stockist of 70/30, 90/10 Copper Nickel Nuts as per Standards in Mumbai, India.

CuNi 70/30 Hex Head Nuts, Cupro Nickel 90/10 Hex Nuts, UNS C71500 Heavy Hex Nuts, CuNi 90/10 Nylon Insert Nuts, Copper Nickel 70/30 Nuts, Cupro Nickel 70/30 Eye Nuts, Copper Nickel 90/10 Dome Nuts, Cupro Nickel 70/30 Nuts Manufacturer.

Cupro-Nickel 70-30 and 90-10 nuts are specialized fasteners made from a copper-nickel alloy. The “70-30” and “90-10” designations refer to the alloy’s respective ratios of copper to nickel. Cupro-nickel nuts are highly corrosion-resistant, making them ideal for marine environments and applications where exposure to seawater or other corrosive substances is a concern. They are commonly utilized in various industries, including shipbuilding, offshore oil and gas, and chemical processing, where durability and reliability are paramount.

At Sumit Impex, we ensure the safe packaging of Cupro-Nickel 70-30 and 90-10 nuts based on our client’s preferences, shielding them from rust with wooden pallets, boxes, and plastic covers during transportation. Our commitment to efficiency guarantees swift delivery to customers. Additionally, we provide comprehensive documentation, including Manufacturer Test Certificates, Raw Materials Certificates, Radiography Test Reports, and Third-Party Inspection Reports, meeting all standard requirements.

Cupro Nickel 70-30 / 90-10 Nuts

Cupro Nickel 70-30 Nuts Specifications

Specifications ASTM B151 / ASME SB151
Nut (DIA)
  • Metric: M6 – M110
  • Inch: 1/4″ – 4.5″
Nuts International Standard IS, ANSI, ASTM DIN, ISO, JIS, GB, ASME, BS, UNI
Threads BSF, UNF METRIC, UNC, UNEF, BSW or as required
ASME/ ANSI – American Standard
  • ANSI B 28.2.4 1M
  • ANSI B 18.2.4 2M
  • ASME B18.5
  • ASME B18.2.2
DIN German Standard DIN 933, DIN 931, DIN 970, DIN 934
ISO Standard ISO 4033, : ISO 4032, JIS standards
Head Drive style Phillips/ Slot, Phillips, Oval, Flat 82 degree, Pan, flat undercut, Round, Truss, flat head 100 degree, binding, fillister head, indented hex head, Slotted, Six-Lobe
MTC (Manufacturer Test Certificate) EN 10204 / 3.1
  • Zinc white, (yellow, black, blue), black oxide,
  • Dacroment, Geometry, plated zinc-nickel, anodizing, nickel plated,
  • Inconel: Passivated Self-Colour, Bright Zinc Plated (BZP),
  • Hot Dip Galvanised (HDG), Sherardized, DACROMET and Mechanically Applied coating
Production Process
  • M2-M24: Cold Forging, hot forging
  • M24-M100, machining and CNC for Customized connecting element
Nuts Coating
  • Xylon Coated Fasteners
  • Phosphate Coated Fasteners
  • Hot Dipped Galvanizing Coated Fasteners
  • Teflon Coated Fasteners
  • Zinc Coated Fasteners
  • Cadmium Coated Fasteners
  • Ptfe Coated (Teflon) Fasteners
Packing Wooden Pallet, Canton, Carton / Small Box or as required

Cupro Nickel 90/10 Nuts Types

Heavy Hex Nuts

Heavy Hex Nuts

Square Nuts

Square Nuts

Coupling Nuts

Coupling Nuts

Acorn Nuts

Acorn Nuts

Cupro Nickel 70/30 Nuts Equivalent Grades

Copper Nickel 70/30 2.0882 C71500
Copper Nickel 90/10 2.0872 C70600

Cupro Nickel 90/10 Nuts Chemical Composition

Grade Cu Mn Pb Ni Fe Zn
Cu-Ni 70-30 65.0 min 1 max .05 max 29-33 0.4-1.0 1 max
Cu-Ni 90-10 88.6 min 1.0 max .05 max 9-11 max 1.8 max 1 max

70/30 Copper Nickel Nuts Mechanical Properties

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 %
Copper Nickel 90-10 0.323 lb/in3 at 68 F 2260 F 50000 psi 20000 psi 30 %

Contact Us For Quatation & Questions Related To Cupro Nickel 70-30 / 90-10 Nuts

CuNi 70/30 Nuts Applications

Export & Supply Destinations Of Cu-Ni 90/10 Nuts

Myanmar, Kyrgyzstan, Singapore, Thailand, Mongolia, Armenia, China, Maldives, Bahrain, Bhutan, Iraq, Egypt, Bangladesh, Malaysia, Saudi Arabia, Philippines, Nepal, Turkey, Jordan, Israel, Japan, Oman, India, Azerbaijan, United Arab Emirates, Sri Lanka, Afghanistan, British, Lebanon, Indonesia, South Korea, Kuwait, Macau, Russia, Qatar, Hong Kong, Vietnam, North Korea, Taiwan, Iran.

Bulgaria, Lithuania, Italy, Romania, Malta, Moldova, United Kingdom, Spain, Latvia, Denmark, Estonia, Slovakia, Finland, Portugal, Belgium, Germany, Liechtenstein, Netherlands, Sweden, Norway, Czechia/Czech Republic, Austria, Cyprus, France, Serbia, Azerbaijan, Ireland, Switzerland, Croatia, Belarus, Poland, Ukraine, Hungary, Luxembourg, Russia, Greece, Turkey, Monaco.

Cameroon, Ethiopia, Central African Republic, Liberia, Angola, Kenya, Tanzania, Rwanda, Madagascar, Mauritania, Burkina Faso, Mozambique, Niger, Namibia, Zambia, South Africa, Morocco, Mauritius, Libya, Senegal, Zimbabwe, Algeria, Tunisia, Egypt, Nigeria, Gambia, Seychelles, Botswana, Eswatini, Burundi, Uganda.

Mexico, Costa Rica, Cuba, Grenada, Guatemala, Saint Lucia, Belize, Honduras, United States of America, Canada, Panama, Trinidad and Tobago, El Salvador, Dominican Republic, Saint Vincent and the Grenadines, Bahamas, Jamaica, Dominica, Barbados, Haiti, Nicaragua, Antigua and Barbuda.

Bolivia, Chile, Colombia, Uruguay, Guyana, Venezuela, Paraguay, Brazil, Ecuador, Peru, Argentina, Suriname.