At Ananka Fasteners Pvt Ltd, we manufacture and supply fasteners certified to ASTM B122. Copper-nickel-tin, copper-nickel-zinc (nickel silver) and copper-nickel alloy plate, sheet, strip and rolled bar. Marine and corrosion-resistant mill product for washers, plates and machined hardware. Metric spec (MPa with (psi)).
Copper-nickel-tin, copper-nickel-zinc (nickel silver) and copper-nickel alloy plate, sheet, strip and rolled bar. Marine and corrosion-resistant mill product for washers, plates and machined hardware. Metric spec (MPa with (psi)).
| Grade / Class | UNS / Designation | Type / Notes |
|---|---|---|
| C70600 | C70600 | 90/10 copper-nickel |
| C71500 | C71500 | 70/30 copper-nickel |
| C72500 | C72500 | copper-nickel-tin |
| C74500 | C74500 | nickel silver 65-10 |
| C75200 | C75200 | nickel silver 65-18 |
| C77000 | C77000 | nickel silver 55-18 |
| C79200 | C79200 | leaded nickel silver |
Minimum mechanical requirements per ASTM B122.
| Grade / Class / Condition | Tensile Strength, min | Yield Strength, min | Elongation, min % | Hardness |
|---|---|---|---|---|
| C70600 O60 (annealed) | 275-330 (40-48 ksi) | 105 (15 ksi) | 35 | ~45 HRB |
| C71500 O60 (annealed) | 360 (52 ksi) | 125 (18 ksi) | 35 | ~55 HRB |
| C75200 O60 (annealed) | 385 (56 ksi) | 170 (25 ksi) | 40 | ~65 HRB |
| C75200 H04 (hard) | 580-640 (84-93 ksi) | 515 (75 ksi) | 3 | 87 HRB |
| C77000 H04 (hard) | 620-700 (90-101 ksi) | 545 (79 ksi) | 3 | 90 HRB |
| Grade | Key Composition, % |
|---|---|
| C70600 | Ni 9.0-11.0, Fe 1.0-1.8, Mn 1.0 max, Cu remainder |
| C71500 | Ni 29.0-33.0, Fe 0.40-1.0, Mn 1.0 max, Cu remainder |
| C75200 | Ni 16.5-19.5, Zn ~17, Cu 63.0-66.5 |
UNS C70600/C71500; Cu-Ni per EN CW352H/CW354H, nickel silver family; related rod standard ASTM B151
For the official ASTM International standards catalogue, see the ASTM International standards listing. This external reference is provided for standards identification; the purchaser should verify the current edition applicable to the order.
We supply ASTM B122 fasteners — bolts, screws, studs, nuts and washers as applicable — for energy, petrochemical, marine, structural and general engineering service, in a full range of sizes and finishes.
For technical documentation and quotations, buyers can also review the Ananka Fasteners manufacturing and supply range or contact the team through the fastener enquiry and technical support page.
Ananka Fasteners supplies every lot with full material traceability and third-party testing on request.
Copper-nickel-tin, copper-nickel-zinc (nickel silver) and copper-nickel alloy plate, sheet, strip and rolled bar. Marine and corrosion-resistant mill product for washers, plates and machined hardware. Metric spec (MPa with (psi)).
Ananka Fasteners supplies C70600, C71500, C72500, C74500, C75200, C77000, C79200 to ASTM B122. See the Grades / Classes Covered table above for full details of each grade.
Minimum tensile strength, yield strength, elongation and hardness requirements vary by grade — see the Mechanical Properties table above for the complete breakdown.
We supply ASTM B122 fasteners — bolts, screws, studs, nuts and washers as applicable — for energy, petrochemical, marine, structural and general engineering service, in a full range of sizes and finishes.
Yes. For a quotation, provide the required fastener type, grade, nominal size, dimensional standard, quantity and any inspection or certificate requirements.
Need a fastener released to ASTM B122 for an industrial project? Send the required fastener type, grade, size, quantity and certification requirements to Ananka Fasteners. Our team can review the requirement and provide technical and commercial information for standard or custom configurations.
Recommended RFQ details: ASTM B122 requirement, material grade, fastener type, nominal size, dimensional standard, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Data compiled per ASTM B122 and industry references; provided for reference only — confirm against the current edition of the standard and certified mill test reports before design use.
