C24000 Brass

Grade Name

UNS Number: C24000
Common Name: Low Brass (80% Cu, 20% Zn)
Corresponding Standards: ASTM B36/B36M (Brass Sheet/Strip), ASTM B134 (Brass Wire), SAE J463.

Product Features

Excellent Cold Workability: Ideal for stamping, bending, and deep drawing.
Moderate Strength: Suitable for low-stress structural applications.
Good Corrosion Resistance: Performs well in atmospheric and freshwater environments.
Cost-Effective: Lower copper content reduces material costs.
Aesthetic Flexibility: Golden-yellow hue for decorative and architectural uses.

Common Product Forms & Dimensions

Form	Thickness (mm)	Width (mm)	Length (mm)	Diameter (mm)
Sheet/Strip	0.3 – 6.0	50 – 500	Custom	-
Rod/Bar	-	-	Custom	3 – 50
Wire	-	-	Custom	0.5 – 12
Tube	1 – 15 (wall)	-	Custom	10 – 150 (OD)
Note: Custom dimensions are available upon request.

Chemical Composition

Element	Cu	Zn	Pb	Fe	Others
Weight %	79–81	Balance	≤0.05	≤0.05	≤0.1
Complies with ASTM B36 and SAE J463 standards.

Physical Properties

Property	Value
Density (g/cm³)	8.67–8.75
Melting Point (°C)	890–920
Electrical Conductivity (%IACS)	22–25 (Annealed)
Thermal Conductivity (W/m·K)	90–110 (at 20°C)
Values may vary depending on processing conditions.

Mechanical Properties

Condition	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)	Hardness (HV)
Annealed	180–230	40–70	45–60	35–55
Cold Worked (H02)	250–320	200–250	25–35	50–70
Cold Worked (H04)	320–390	280–330	5–15	80–100
Data applies to standard thicknesses and processing states.

Core Advantages

1. Cold Forming Excellence: Ideal for complex stamped or drawn components.

2. Cost Efficiency: Lower copper content reduces material expenses.

3. Versatile Aesthetics: Suitable for decorative and functional applications.

4. Environmental Resistance: Resists tarnishing in humid or mild chemical environments.

Product Applications

Hardware: Fasteners, hinges, and brackets.
Decorative: Architectural trim, lamp fixtures, and jewelry components.
Plumbing: Low-pressure fittings and valve bodies.
Electrical: Low-current terminals and connectors.
Industrial: Stamped parts, bushings, and washers.

Processing Considerations

Annealing: 400–550°C to restore ductility after cold working.
Machining: Use sharp tools with lubricants to minimize galling.
Welding: Compatible with TIG and soldering; avoid overheating to prevent zinc loss.
Surface Finishing: Polishing or electroplating recommended for decorative uses.

Key Application Scenarios

Consumer goods requiring intricate stamped designs (e.g., zippers, buttons).
Architectural elements in humid or indoor environments.
Low-stress automotive or appliance components.
Cost-sensitive industrial manufacturing.

FAQs

Q1: How does C24000 compare to C23000 brass?

A: C24000 has lower copper content (80% vs. 85%), further reducing cost but with slightly lower strength and corrosion resistance.

Q2: Is C24000 suitable for marine applications?

A: Limited to low-salinity or freshwater use; avoid prolonged saltwater exposure without coatings.

Q3: Can C24000 be recycled?

A: Yes, it is fully recyclable, supporting sustainable manufacturing practices.

Standard References

Standard	Description
ASTM B36/B36M	Specifications for brass sheet, strip, and rolled bar.
ASTM B134	Standard for brass wire.
SAE J463	Mechanical property standards for wrought copper alloys.

Note: Specifications may vary slightly depending on manufacturer and processing methods. Always consult technical datasheets for critical applications.

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