Cartridge Brass C26000
UNS C26000 EN / W.Nr. 2.0401
70/30 copper-zinc — the most ductile brass for deep drawing, spinning and stamping. Ammunition components, lamp fittings, fasteners and decorative work.
Brass & Bronze — Copper Alloys for Engineering Duty
Brass (copper-zinc) and bronze (copper-tin and copper-aluminium) alloys for machined components, marine hardware, bearings and corrosion duty.
Brass & Bronze — Material Overview
Brass is copper alloyed with zinc. The 70/30 "cartridge brass" (C26000) offers the best combination of strength and ductility for deep drawing; admiralty and naval brass add tin (and arsenic) for dezincification resistance in condenser and marine service.
Bronzes are copper-tin (phosphor bronze, with excellent spring and bearing properties) and copper-aluminium alloys (aluminium / nickel-aluminium bronze, with high strength plus seawater corrosion and cavitation resistance). Together they cover machined fittings, bearings, bushings, marine hardware, pump and valve components and wear parts.
6grades listed
8,500 kg/m³typical density (varies 8.4 – 8.8 by grade)
6product forms
Available Grades
The grades below are the ones most often asked for. Each grade stays on this page — the material-first way to browse.
Admiralty Brass C44300
UNS C44300 EN / W.Nr. 2.0470
Tin-bearing arsenical brass with dezincification resistance — condenser and heat-exchanger tubing in fresh, brackish and mild seawater service.
Naval Brass C46400
UNS C46400 EN / W.Nr. 2.0321
Tin-bearing 60/40 brass for marine hardware — plates, rods and forgings where seawater corrosion resistance and machinability are needed.
Phosphor Bronze C51000
UNS C51000 EN / W.Nr. 2.1010
Copper-tin-phosphorus alloy — high fatigue strength, corrosion resistance and spring properties. Bearings, bushings, springs, fasteners and switch parts.
Ni-Al Bronze C63000
UNS C63000
Nickel-aluminium bronze with high strength, wear and cavitation resistance — marine propellers and shafts, pump impellers, valves and bearings in seawater.
Al Bronze C95400
UNS C95400
Cast aluminium bronze — gears, worm wheels, bushings and marine fittings where a cast part with high strength and corrosion resistance is required.
Chemical Composition (indicative)
Nominal ranges as published in the common product standards. Values are indicative and for comparison only — always purchase against the current ASTM/EN specification and the mill test certificate.
Cartridge Brass C26000
| Element | Content |
|---|---|
| Copper (Cu) | 68.5 – 71.5 |
| Zinc (Zn) | bal. |
| Iron (Fe) | ≤ 0.05 |
Admiralty Brass C44300
| Element | Content |
|---|---|
| Copper (Cu) | 70.0 – 73.0 |
| Zinc (Zn) | bal. |
| Tin (Sn) | 0.9 – 1.2 |
| Arsenic (As) | 0.02 – 0.06 |
Naval Brass C46400
| Element | Content |
|---|---|
| Copper (Cu) | 59.0 – 62.0 |
| Zinc (Zn) | bal. |
| Tin (Sn) | 0.50 – 1.0 |
Phosphor Bronze C51000
| Element | Content |
|---|---|
| Copper (Cu) | bal. (≈ 94 – 96) |
| Tin (Sn) | 4.2 – 5.8 |
| Phosphorus (P) | 0.03 – 0.35 |
Ni-Al Bronze C63000
| Element | Content |
|---|---|
| Copper (Cu) | bal. (≈ 78 – 85) |
| Aluminium (Al) | 9.0 – 11.0 |
| Nickel (Ni) | 4.0 – 5.5 |
| Iron (Fe) | 3.0 – 5.0 |
Al Bronze C95400
| Element | Content |
|---|---|
| Copper (Cu) | bal. (≥ 83) |
| Aluminium (Al) | 10.0 – 11.5 |
| Iron (Fe) | 3.0 – 5.0 |
Mechanical Properties (indicative)
Typical minimum values for the common product forms in the annealed / solution-treated condition. Actual properties depend on product form, specification revision and heat treatment.
Cartridge Brass C26000
| Property | Value |
|---|---|
| Tensile strength (annealed, typical) | 315 – 370 MPa |
| Yield strength (annealed, typical) | ≈ 105 MPa |
| Elongation (annealed) | ≈ 55 – 65 % |
| Density | 8.53 g/cm³ |
Admiralty Brass C44300
| Property | Value |
|---|---|
| Tensile strength (annealed, typical) | ≈ 340 MPa |
| Elongation (annealed) | ≈ 60 % |
| Density | 8.53 g/cm³ |
Naval Brass C46400
| Property | Value |
|---|---|
| Tensile strength (typical) | ≈ 390 – 440 MPa |
| Elongation | ≈ 25 – 35 % |
| Density | 8.41 g/cm³ |
Phosphor Bronze C51000
| Property | Value |
|---|---|
| Tensile strength (annealed, typical) | ≈ 340 – 470 MPa |
| Elongation (annealed) | ≈ 55 % |
| Density | 8.86 g/cm³ |
Ni-Al Bronze C63000
| Property | Value |
|---|---|
| Tensile strength (typical) | ≈ 620 – 700 MPa |
| Yield strength (typical) | ≈ 275 – 350 MPa |
| Elongation | ≈ 12 – 18 % |
| Density | 7.58 g/cm³ |
Al Bronze C95400
| Property | Value |
|---|---|
| Tensile strength (typical, as-cast) | ≈ 585 – 620 MPa |
| Yield strength (typical) | ≈ 240 – 275 MPa |
| Density | 7.45 g/cm³ |
Physical Properties
| Property | Value |
|---|---|
| Density (typical brasses) | 8.4 – 8.5 g/cm³ |
| Density (phosphor bronze) | 8.86 g/cm³ |
| Density (aluminium bronzes) | 7.4 – 7.6 g/cm³ |
| Melting range (C26000) | ≈ 915 – 955 °C |
| Thermal conductivity (C360-type free-cutting brass) | ≈ 115 W/m·K |
Available Product Forms
Brass & Bronze is offered in the product forms below. Availability varies by grade and size — confirm the exact combination with our sales desk.
Pipes & Tubes
Seamless and welded pipes and tubes to ASTM/ASME, IS and BS specifications — including boiler, air-preheater and corten tubes.
Sheets, Plates & Coils
Hot-rolled and cold-rolled sheets, plates, coils, circles and flats in standard and cut sizes.
Pipe Fittings
Butt-weld, forged and socket-weld fittings — elbows, tees, reducers, caps, stub ends, olets and nipples.
Bars, Rods & Wires
Bright and black round bars, square and hex bars, flats and wires in stainless, duplex, alloy, carbon and nickel-alloy grades.
Fasteners
Bolts, nuts, studs, washers and threaded rods in alloy and stainless grades.
Copper Connectors / Jumpers
Copper jumpers, connectors and earthing / bonding products.
Industrial Applications
- Condenser and heat-exchanger tubing (admiralty)
- Marine hardware, shafts and propellers (Ni-Al bronze)
- Bearings, bushings and wear plates (phosphor bronze)
- Springs, contacts and switchgear parts
- Machined fittings, valves and pump components
- Gears, worm wheels and nuts
- Architectural and decorative work
Applicable Standards
| Standard | Scope |
|---|---|
| ASTM B111 / SB111 | Copper-alloy condenser tubes (admiralty, aluminium brass) |
| ASTM B505 | Copper-alloy continuous castings (bronze) |
| ASTM B139 | Phosphor bronze rod, bar and shapes |
| ASTM B16 / B21 | Brass rod/bar (free-cutting, naval) |
| ASTM B36 | Brass plate, sheet, strip and rolled bar |
| ASTM B148 | Aluminium-bronze castings |
| ASTM B124 | Copper and copper-alloy forging rod, bar and shapes |
Quality & Documentation
Brass and bronze products are supplied to ASTM specifications with EN 10204 Type 3.1 certification and traceability. Where dezincification-resistant grades are needed (DZR for hot-water service), the applicable certification is supplied. Composition and mechanical test reports accompany specification material.
Related Engineering Calculators
Pipe Weight Calculator
Theoretical weight of pipe from outside diameter, wall thickness, length and material.
Round Bar Weight Calculator
Theoretical weight of round bars from diameter, length and material.
Sheet & Plate Weight Calculator
Theoretical weight of sheets and plates from length, width, thickness and material.
Unit Conversion Calculator
mm ↔ in, m ↔ ft, kg ↔ t, kg/m ↔ lb/ft and MPa ↔ psi conversions.
Frequently Asked Questions
What is dezincification and how do I avoid it?
Dezincification is selective leaching of zinc from brass leaving weak porous copper — a risk in some waters, especially warm and low-flow conditions. Arsenical grades (admiralty C44300, DZR brasses) resist it. In aggressive seawater, copper-nickel or bronze is the safer choice.
Brass or bronze for bearings?
Phosphor bronze (C51000) is the classic bearing and bushing alloy with high fatigue strength and low friction; aluminium bronze takes higher loads and impact. Plain brass is not a bearing material.
Can brass be used in seawater?
Short answer: only the right grades. Naval brass and admiralty brass (tin-bearing) work in condenser and marine duty; general-purpose brasses dezincify. For critical seawater piping, copper-nickel is preferred.
What is the machinability advantage of brass?
Brass (especially leaded free-machining types) machines at high speed with excellent finishes — a major cost saving for volume machined parts. These grades are supplied to the applicable regional compliance requirements; confirm with the enquiry.
Which is stronger — brass or bronze?
Bronzes generally are: nickel-aluminium bronze reaches 620–700 MPa tensile versus about 315–440 MPa for annealed brasses. Brasses can be cold-worked harder, but for cast and high-load parts bronze wins.
Need Brass & Bronze Priced?
Send the grade, product form, size and quantity — our sales desk replies with an offer and lead time within one business day.