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When a project demands a material that holds tight tolerances, resists corrosion, and machines cleanly without galling, finding the right brass flat bar stock in the exact size you need can be frustrating. Hobbyists, machinists, and fabricators working on electrical components, decorative trim, or structural brackets all face the same challenge: sourcing a solid, dimensionally consistent piece without ordering bulk quantities.
These H59 brass flat bars are cut from solid H59 alloy billet — a copper-zinc alloy with approximately 59% copper content. Each piece measures 100mm (≈3.94 in) in length, with widths ranging from 20mm to 100mm (≈0.79–3.94 in) and thickness options from 15mm to 32mm (≈0.59–1.26 in). The cross-section is square-edged and flat, making it suitable for direct use or further machining.
Typical applications include custom electrical bus bars and terminal blocks, decorative architectural trim and inlay work, precision jig and fixture components, and small-batch prototype fabrication where brass flat bar stock cut to size is required.
| Material | H59 Brass (Cu-Zn alloy, ~59% copper) |
|---|---|
| Form | Flat bar / solid strip / sheet plate |
| Length | 100mm (≈3.94 in) |
| Width Range | 20mm – 100mm (≈0.79 – 3.94 in) — See variant options |
| Thickness Range | 15mm – 32mm (≈0.59 – 1.26 in) — See variant options |
| Cross-Section | Square-edged flat bar |
| Surface Finish | Mill finish (as-cut); light machining marks typical |
| Machinability | Good — compatible with HSS and carbide tooling |
| Corrosion Resistance | Moderate — suitable for dry and mildly humid environments |
| Electrical Conductivity | Moderate-high (typical of Cu-Zn alloys) |
| Packing Quantity | 1 PCS per order unit |
| Weight | See variant options (varies by width × thickness) |
Select the width and thickness closest to your finished dimension while leaving enough material for your machining allowance — typically 0.5–2mm per face for milling or grinding. If your finished part is 28mm wide, ordering the 30mm width variant gives you a 1mm cleanup pass on each side. Check the variant selector above for all available combinations.
H59 is a Chinese national standard (GB) brass alloy containing approximately 59% copper and 41% zinc. Compared to higher-copper grades like H62 or H65, H59 has slightly lower corrosion resistance but remains cost-effective for structural, decorative, and electrical applications where extreme corrosion exposure is not a concern. It machines and forms well with standard tooling.
H59 brass performs well in dry and mildly humid indoor environments. For outdoor applications, exposure to rain, salt air, or industrial atmospheres will accelerate tarnishing and surface oxidation over time. If long-term outdoor appearance is critical, consider applying a clear lacquer or protective coating after machining. For marine or highly corrosive environments, a higher-grade alloy may be more appropriate.
Yes. H59 brass is considered a free-machining alloy relative to many metals. It cuts cleanly with standard HSS or carbide saw blades, end mills, and drill bits. Use a cutting fluid or light oil to extend tool life and improve surface finish. Tapping is straightforward with standard brass-rated taps — use a spiral-point tap and back off periodically to clear chips.
As-cut flat bar stock carries typical mill tolerances. Width and thickness may vary by ±0.1–0.5mm depending on the specific size. If your application requires tighter tolerances, plan for a finish machining pass. The 100mm length is nominal; actual cut length may vary slightly. Contact us to confirm if your application has strict dimensional requirements.
Each order unit contains 1 piece (1 PCS) of the selected width × thickness combination. The length is fixed at 100mm. If you need multiple pieces, simply increase the quantity at checkout. Bulk pricing inquiries for larger quantities are welcome — contact us to confirm availability.
Common uses include electrical bus bars and terminal connectors, decorative inlay and trim work in furniture or architectural projects, custom brackets and spacers in mechanical assemblies, jig and fixture components in machine shops, and prototype parts where brass's combination of machinability and appearance is valued. The flat bar form is also used as raw stock for further profiling on a mill or lathe.
