Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of c28500 brass alloy in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
C28500 Brass, also known as Engraving Brass, C285 Cartridge Brass Variant, UNS C28500 Brass Sheet/Plate/Strip, is a popular copper–zinc alloy searched globally for uniform machining performance, excellent cold-working, and stable corrosion resistance. Buyers commonly search for C28500 Brass Sheet, C28500 Brass Plate, Engraving Brass Strip, C28500 Brass Coil, Cartridge Brass Alloy, and High-Strength Brass for Engraving & Stamping. This page provides full technical specifications, chemical composition, and export-ready data for international B2B sourcing.
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Products Description
Product Name: C28500 Brass Alloy
Alias: Engraving Brass, Cartridge Brass Variant
Standards: ASTM B36 / B124
Forms: Sheet, Plate, Strip, Coil, Rod, Tube
Specifications (Metric & Imperial)
| Form | Thickness / OD | Width | Length | Tolerance |
|---|---|---|---|---|
| Sheet / Plate | 0.3–60 mm (0.012–2.36") | 20–2000 mm | 1000–6000 mm | ASTM / EN Standard |
| Strip / Coil | 0.05–3 mm (0.002–0.12") | 5–600 mm | Coil | ±0.01–0.05 mm |
| Rod / Bar | 3–120 mm (0.12–4.72") | - | 1000–6000 mm | H9–H11 |
| Tube | OD 4–120 mm | WT 0.3–10 mm | 1000–6000 mm | ±0.02–0.10 mm |
Chemical Composition (UNS C28500)
| Element | Content (%) |
|---|---|
| Copper (Cu) | 58.0–63.0 |
| Zinc (Zn) | Balance |
| Lead (Pb) | ≤0.09 |
| Iron (Fe) | ≤0.05 |
| Others | ≤0.30 |
Physical Properties (C28500 Brass)
| Property | Value |
|---|---|
| Density | 8.44 g/cm³ (0.305 lb/in³) |
| Melting Range | 900–940°C (1652–1724°F) |
| Thermal Conductivity | 120 W/m·K (at 20°C) |
| Electrical Conductivity | ~28% IACS |
| Coefficient of Thermal Expansion (20–300°C) | 20.0 × 10⁻⁶ /K |
| Specific Heat Capacity | 0.377 J/g·K |
| Modulus of Elasticity (Elastic Modulus) | 105 GPa (15.2 × 10⁶ psi) |
| Poisson's Ratio | 0.33 |
| Magnetic Permeability | Non-magnetic (approx. 1.0) |
Mechanical Properties (Typical)
| Property | Typical Value |
|---|---|
| Tensile Strength (Annealed) | 300–380 MPa |
| Tensile Strength (Half Hard) | 420–500 MPa |
| Yield Strength (Annealed) | 90–150 MPa |
| Elongation (Annealed) | 30–45% |
| Hardness | 60–120 HV (depending on temper) |
Products Features
Excellent machinability suitable for engraving & milling
Good ductility and cold-working performance
Stable corrosion resistance
Uniform surface suitable for precision stamping
Good weldability and formability
Products Applications
Nameplates and engraved signage
Precision hardware parts
Electrical connectors & terminals
Decorative trims and architectural fittings
Industrial stamped components
Heat exchanger components
Inspection & Quality Assurance
100% chemical composition test (spectrometer)
Tensile, yield strength & elongation testing
Dimensional & surface inspection (roughness, straightness, flatness)
Grain size and hardness testing for consistent temper
Third-party inspection: SGS / TUV / BV available
Product Delivery Standards
Moisture-proof export packaging
Anti-scratch film and protective paper for sheets & strips
Wooden crates / pallets for ocean shipment
Coil packaging with strapping and edge protectors
Customized labels & documents for international trading
Looking for a reliable supplier of C28500 Engraving Brass with competitive pricing and stable quality?
Contact our team for technical support, instant quotation, and sample availability.
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
FAQ
Q1: What is C28500 Brass commonly used for?
C28500 is widely used for engraving plates, precision hardware, stamped components, decorative parts, and electrical connectors due to its balanced strength and machinability.
Q2: How does C28500 differ from C28000 Cartridge Brass?
C28500 contains slightly lower copper content and offers better machinability and smoother engraving performance, while C28000 is optimized for deep drawing.
Q3: Is C28500 suitable for engraving and CNC machining?
Yes. Known as "Engraving Brass," C28500 is specifically developed for stable cutting, engraving, laser marking, and fine-detail machining.
Q4: Does C28500 support deep drawing?
It supports moderate deep drawing but is not as ductile as C26000 or C28000. It performs best in stamping, engraving, and milling applications.
Q5: What tempers are available for C28500?
Available tempers include O (soft), 1/4H, 1/2H, H, EH, depending on product type (sheet, strip, rod).
Q6: Can C28500 Brass be welded?
Yes, it supports soldering and brazing.
Gas welding is possible but requires skill to avoid zinc burn-off.
Q7: What are the surface finish options for C28500?
Mill finish, bright finish, polished, brushed, protective-film-coated strip, and customized engraving-surface finishes.
Q8: Do you supply precision slit coils for electronics?
Yes. We offer slitting down to 5 mm width with tight tolerance and burr-free edges for electronic connectors.
Q9: Is C28500 corrosion-resistant?
Yes. It provides good atmospheric corrosion resistance, suitable for indoor and light outdoor use, decorative fittings, and low-corrosion environments.
Q10: Can you provide MTC or third-party inspection?
Absolutely. We supply EN10204 3.1 Mill Test Certificates, and third-party inspections such as SGS, TUV, BV are available upon request.
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