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Sachiya Steel International Exporter of ASTM B 151 Cu-Ni Machine Washer, Copper Nickel 90/10 Star Washer Exporter, Copper UNS C70600 Wire Spring, Cu-Ni WERKSTOFF NR. 2.0872 Flat Spring Manufacturer in India.

Copper Nickel 90 Washers has tensile, hardness, impact, creep and fatigue features, which have been abstracted from the relevant original literature. Cu-Ni 90 / 10 Lock Washers are most commonly specified within the marine, offshore, chemical, petrochemical and shipbuilding industries. Cupro Nickel 90 / 10 Sealing Washers are also widely used for handling seawater in all types of heat exchanger and cooling plant.

Nickel in Copper Nickel 90 / 10 Split Washers is soluble in copper and this renders the copper nickel alloys as single phase alpha structures. Cu-Ni 90 / 10 Slot Washers is a typical mix is 75 % copper, 25 % nickel, and a trace amount of manganese, where in the past, true silver coins were debased with such cupronickel. Cupro Nickel 90 / 10 Machine Washers are attacked by chromic, hydrochloric and nitric acids.

Copper Nickel 90 Washers | Copper Nickel 90 Washers | Copper Nickel 90 Washers | Copper Nickel 90 Washers

Copper Nickel 90 / 10 Star Washers is also resistant to the alkali chlorides, nitrates, sulfates and to ammonia and ammonium compounds. Cu-Ni 90 / 10 Wire Spring Washers is a Copper Nickel Iron alloy with a small content of manganese which allows excellent resistance to sea – and brackish water.

Meanwhile, Cupro Nickel 90 / 10 Flat Spring Washers are also being offered in different sizes and shapes to our customers. Copper Nickel 90 / 10 Washers is the low resistivity alloy used at temperature range up to 300 Degree C (570 Degree F).


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Cu-Ni Alloy 90/10 Washer Specifications
Specifications : ASTM
Standard : ASTM B151, B152
Length : M02 to M30
Size : M10 to M100
Type : Flat Washer, Lock Washer, Sealing Washer, Split Washer, Slot Washer, Machine Washer, Star Washer SPRINGS – Wire Spring & Flat Spring
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Copper Nickel Cu 90/10 Washers Chemical Composition
Cu-Ni 90/10 Cu Pb Mn Fe Zn Ni
88.6 min 0.05 max 1.0 max 1.8 max 1 max 9-11 max
Cu-Ni 90/10 Washer 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 %
Equivalent Grades for Copper Nickel 90/10 Washer
Cupro Nickel 90/10 C70600 2.0872
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Alloy Cu-Ni 90/10 Washers Application Industries
  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry
90/10 Cu-Ni Washers Test Certificates

We at Sachiya Steel International provide Manufacturer TC (Test Certificate) in accordance to EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report. We also provide Standard certificates like EN 10204 3.1 and additional requirement like. NACE MR 01075. FERRIT CONTENT as per norms if requested by clients.

• EN 10204/3.1B,
• Raw Materials Certificate
• 100% Radiography Test Report
• Third Party Inspection Report, etc.

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Material Testing

We at Sachiya Steel International ensure that all our materials go through strict quality tests before dispatching them to our clients.

• Mechanical Testing Such as Tensile of Area
• Hardness Test
• Chemical Analysis – Spectro Analysis
• Positive Material Identification – PMI Testing
• Flattening Test
• Micro and Macro Test
• Pitting Resistance Test
• Flaring Test
• Intergranular Corrosion (IGC) Test


• Commercial Invoice which includes HS Code
• Packing List including net weight and gross weight, number of boxes, Marks and Numbers
• Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
• Fumigation Certificates
• Raw Material Test Reports
• Material Traceability Records
• Quality Assurance Plan (QAP)
• Heat Treatment Charts
• Test Certificates certifying NACE MR0103, NACE MR0175
• Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
• Guarantee Letter
• NABL approved Laboratory Test Reports
• Welding Procedure Specification/Procedure Qualification Record, WPS/PQR
• Form A for the purposes of the Generalized System of Preferences (GSP)


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Copper Nickel 90 Washers
copper nickel 90 10 washers suppliers manufacturers india

Copper Nickel 90 Washers has tensile, hardness, impact, creep and fatigue features, which have been abstracted from the relevant original literature.

Product Brand: Sachiya Steel International

Product In-Stock: InStock

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