Ananka Fasteners is a premier manufacturer and supplier of high-quality Silicon Bronze C65500 Fasteners (UNS C65500), also known as High-Silicon Bronze A. This premium non-ferrous copper alloy offers an exceptional blend of strength, corrosion resistance, and formability, achieving tensile strength comparable to medium-carbon steel, making it the ultimate fastening solution for marine, electrical, and architectural applications.
As a master manufacturer, we produce a comprehensive range of C65500 fasteners spanning from marine hardware to architectural restoration components.
| Bolts & Screws | Nuts & Washers | Studs & Rods |
|---|---|---|
| Hex Head Bolts / Cap Screws | Hex Nuts / Heavy Hex Nuts | Continuous Thread Studs |
| Carriage Bolts | Jam Nuts / Acorn Nuts | Double End Studs |
| Wood Screws / Machine Screws | Flat Washers / Lock Washers | Threaded Rods / Grounding Rods |
| Sheet Metal Screws / Set Screws | Custom CNC Machined Nuts | Custom CNC Machined Studs |
| Material Equivalent Grades | UNS C65500 | High-Silicon Bronze A | Copper-Silicon Alloy |
|---|---|
| Standard Specifications | ASTM F468 (Nonferrous Bolts, Hex Cap Screws & Studs) ASTM F467 (Nonferrous Nuts) ASTM B98 / B98M (Copper-Silicon Alloy Rod, Bar & Shapes) |
| Size Range | Metric: M3 to M100 | Imperial: 1/8" to 4" Custom machined lengths available on request. |
| Thread Types | UNC, UNF, Metric Coarse, Metric Fine, BSW, BSF |
| Dimensional Standards | ASME B18.2.1 (Hex Bolts & Hex Cap Screws), ASME B18.2.2 (Hex Nuts & Heavy Hex Nuts), ASME B18.21.1 (Washers) |
| Cu (Copper) | Si (Silicon) | Mn (Manganese) | Zn (Zinc) | Fe (Iron) | Pb (Lead) |
|---|---|---|---|---|---|
| 94.8% Min (Remainder) | 2.80 - 3.80% | 0.50 - 1.30% | 1.50% Max | 0.80% Max | 0.05% Max |
| Tensile Strength | Yield Strength | Elongation (in 2") | Hardness (Rockwell) | Density |
|---|---|---|---|---|
| 70,000 - 105,000 psi (480 - 725 MPa) | 35,000 - 55,000 psi (240 - 380 MPa) | 12% - 50% | B75 - B95 | 0.308 lbs/cu in (8.53 g/cm³) |
| Melting Point | 1865 - 1922°F (1018 - 1050°C) |
|---|---|
| Modulus of Elasticity | 15,000 ksi (103 GPa) |
| Electrical Conductivity | 7% IACS (Annealed) |
| Thermal Conductivity | 21 Btu/(hr·ft·°F) at 68°F |
Note: Exact mechanical properties for fasteners depend on the diameter, heat treatment, and whether the material is cold-headed or machined.
Silicon Bronze C65500 delivers a rare combination of steel-like mechanical strength with copper-alloy corrosion resistance, making it a preferred alternative to stainless steel and brass in demanding marine and electrical environments.