60/39/1 copper-zinc-tin alloy for marine hardware & piping.
Material Overview
Naval Brass (60/39/1 copper-zinc-tin) combines the strength of brass with added corrosion resistance from a small tin addition, and is commonly used in marine hardware, fasteners and piping components exposed to seawater.
Grades & Standards
Available grades and the international standards commonly applied to naval brass pipes.
Technical Data
Naval Brass (C46400) is a 60/40 alpha-beta brass with a tin addition for seawater corrosion resistance.
Chemical Composition (% by weight)
| Grade | UNS No. | Cu | Sn | Pb (max) | Fe (max) | Zn |
|---|---|---|---|---|---|---|
| Naval Brass | C46400 | 59.0 – 62.0 | 0.50 – 1.0 | 0.20 | 0.10 | Remainder |
Composition per ASTM B21 / ASTM B111. No lead addition; typical heats run well under the 0.20% Pb limit. Mill test certificates issued per EN 10204 3.1 on request.
Mechanical Properties — Naval Brass (C46400)
| Property | Annealed | Half-Hard / Drawn |
|---|---|---|
| Tensile Strength | 380 MPa | 470 MPa |
| Yield Strength | 170 MPa | 310 MPa |
| Elongation | 45% | 20% |
| Density | 8.41 g/cm³ | 8.41 g/cm³ |
Typical values; exact temper confirmed at enquiry stage.
Dimensions
Commonly stocked tube sizes, plus Schedule 40 & 80 pipe dimensions for cross-reference. Custom OD, wall thickness & lengths manufactured on request.
Tube & Pipe — OD × Wall Thickness
| OD (mm) | OD (in) | Wall Thickness (mm) | Form |
|---|---|---|---|
| 12.70 | 1/2" | 0.71 / 0.91 | Coiled Tube |
| 19.05 | 3/4" | 0.89 / 1.02 | Coiled Tube / Straight Pipe |
| 25.40 | 1" | 1.02 / 1.22 | Straight Pipe |
| 38.10 | 1-1/2" | 1.22 / 1.63 | Straight Pipe |
| 50.80 | 2" | 1.63 / 2.11 | Straight Pipe |
| 101.60 | 4" | 2.77 / 3.40 | Straight Pipe |
Pipe — NPS & Schedule Reference
| NPS | OD (in) | Sch. 40 Wall (in) | Sch. 80 Wall (in) |
|---|---|---|---|
| 1/2" | 0.840 | 0.109 | 0.147 |
| 3/4" | 1.050 | 0.113 | 0.154 |
| 1" | 1.315 | 0.133 | 0.179 |
| 1-1/2" | 1.900 | 0.145 | 0.200 |
| 2" | 2.375 | 0.154 | 0.218 |
| 3" | 3.500 | 0.216 | 0.300 |
| 4" | 4.500 | 0.237 | 0.337 |
| 6" | 6.625 | 0.280 | 0.432 |
Pipe is most commonly ordered directly by OD × wall thickness rather than schedule; the NPS/Schedule table above is shown for cross-reference against steel-pipe-based specifications. Full mill drawings & tolerances issued with every quotation.
Send us your drawings, sizes and standards — our team will get back to you with a detailed quotation for your Copper-Nickel, Copper, Brass or Bronze piping requirement.
