C22000 Commercial Bronze
UNS C22000 90/10 Copper-Zinc
C22000, commonly known as Commercial Bronze or 90/10 Brass, is a high-copper brass alloy that provides an excellent balance of corrosion resistance, formability, and a rich gold-bronze color. With approximately 90% copper and 10% zinc, it bridges the gap between pure copper and the working brasses.
Although commonly referred to as a bronze, C22000 is technically a brass — the “bronze” name reflects its bronze-like color rather than its chemistry. It offers excellent cold-working and stamping characteristics, good corrosion resistance for industrial and architectural service, and superb solderability.
C22000 is used extensively for hardware, builder’s components, costume jewelry, fasteners, and decorative architectural products where appearance and formability are both important.
Common Names & Cross-References
Designation | Value |
|---|---|
Common Names | Commercial Bronze, 90/10 Brass, Gold Brass, C220 |
UNS | C22000 |
CDA | 220 |
British Standard | CZ101 |
EN (Europe) | CuZn10 / CW501L |
JIS (Japan) | C2200 |
C22000 Chemical Composition
Element | Composition (%) |
|---|---|
Copper (Cu) | 89.0 – 91.0 |
Zinc (Zn) | Balance |
Lead (Pb) | 0.05 max |
Iron (Fe) | 0.05 max |
Typical Mechanical Properties
Property | Annealed (O60) | Hard (H02) |
|---|---|---|
Tensile Strength | 37 ksi (255 MPa) | 61 ksi (421 MPa) |
Yield Strength (0.2%) | 10 ksi (69 MPa) | 50 ksi (345 MPa) |
Elongation (in 2 in.) | 50% | 5% |
Hardness | Rockwell F 53 | Rockwell B 64 |
Key Features & Advantages
- Excellent balance of corrosion resistance and formability
- Rich gold-bronze color suited to architectural and decorative use
- Excellent cold-working and stamping performance
- Strong solderability and brazing characteristics
- Good resistance to dezincification
- Consistent finish and polishability
Common Applications of C22000
- Hardware, builder’s components, and architectural trim
- Stampings and formed components
- Fasteners, screws, and rivets
- Costume jewelry and decorative goods
- Coinage and medals
- Bullet jackets and ammunition components
Primary Markets Served
- Architectural & Decorative
- Hardware & Fasteners
- Industrial Manufacturing
- Defense & Ammunition
When to Specify C22000
- C22000 vs. C21000 (95/5) — C21000 has more copper for an even redder color and slightly better forming. C22000 is more economical and slightly stronger.
- C22000 vs. C23000 (85/15) — C23000 is more economical and slightly stronger but with slightly lower corrosion resistance and a less rich color.
- C22000 vs. pure copper — C22000 is significantly stronger, more economical, and easier to machine than pure copper, with similar corrosion resistance.
Why Source 21?
- ISO 9001-certified quality system with full chemistry and mechanical traceability on every shipment
- Multi-million dollar national inventory across stainless, nickel alloys, copper, and brass
- Strong domestic and international mill relationships, including premium specialty mill partnerships
- In-house slitting, edging, leveling, and cut-to-length capabilities
- Contract programs, blanket orders, and vendor-managed inventory (VMI) for production accounts
- Responsive technical support for tight-tolerance and certification-driven work
Request a Quote
Contact Source 21 today for C22000 Commercial Bronze pricing, availability, and processing options. Our team responds quickly, asks the right questions, and gets you accurate quotes on real material — not vague placeholders.
Call 631-821-1101 or request a quote online to get started.
Founded in 1990 Source 21 is a leading distributor and processor of stainless steel, copper and brass products.
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