What is C28000 brass?
Different Material Names for C28000 Brass Bar: GB- H59, ISO- CuZn41, ASTM- C28000, JIS- C2800, BS-CZ109, DIN- CuZn39.
C28000 Brass Bar is with good performances in mechanical properties and machinability in hot pressure and cold pressure processing. C28000 is widely used in the applications of structural parts as bushings, gaskets, etc. Besides, Tin brass materials has high corrosion resistance and are widely used as raw materials for corrosion resistant parts of ship, vapor, oil's industrial fields.
When production for C28000 Brass Bar, the available sizes are: Thickness- 0.05mm to 60mm; Width- Up to 3000mm; Length- Up to 6000mm.
C28000 brass Chemical Composition
| Elements | ||||
|---|---|---|---|---|
| Cu(1) | Pb | Zn | Fe | |
| (1) Cu + Sum of Named Elements 99.7% min. | ||||
| Min (%) | 59.0 | |||
| Max (%) | 63.0 | 0.09 | Rem | 0.07 |
Mechanical Properties
| Form | Temper | Temper Code | Tensile Strength (ksi) |
YS-0.5% Ext (ksi) |
Elongation (%) |
Rockwell B scale | Rockwell F scale | Rockwell 30T scale | Shear Strength (ksi) |
Torsion Modulus (ksi) |
Ultimate Tensile Strength in Shear (ksi) |
Section Size (in) |
Cold Work (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| * Measured at room temperature, 68°F (20°C). | |||||||||||||
| Flat Products | 1/2 Hard | H02 | 70 Typ | 50 Typ | 10 Typ | 75 Typ | 67 Typ | 44 Typ | 0.04 | ||||
| 1/8 Hard | H00 | 60 Typ | 35 Typ | 30 Typ | 55 Typ | 54 Typ | 42 Typ | 0.04 | |||||
| As Hot Rolled | M20 | 54 Typ | 21 Typ | 45 Typ | 85 Typ | 49 Typ | 40 Typ | 0.04 | |||||
| Soft Anneal | O60 | 54 Typ | 21 Typ | 45 Typ | 80 Typ | 46 Typ | 40 Typ | 0.04 | |||||
| Flat Products & Rod | Annealed | O61 | 54 Typ | 21 Typ | 45 Typ | 40 Typ | 0.04 | ||||||
| Annealed | O61 | 54 Typ | 21 Typ | 50 Typ | 40 Typ | 1 | |||||||
| Rod | 1/4 Hard | H01 | 72 Typ | 50 Typ | 25 Typ | 78 Typ | 5.7 Typ | 45 Typ | 1 | ||||
| As Hot Extruded | M30 | 52 Typ | 20 Typ | 52 Typ | 78 Typ | 39 Typ | 1 | ||||||
| Soft Anneal | O60 | 54 Typ | 21 Typ | 50 Typ | 80 Typ | 40 Typ | 1 | ||||||
| Tube | Hard | H04 | 74 Typ | 55 Typ | 10 Typ | 80 Typ | 30 | ||||||
| Light Anneal | O50 | 56 Typ | 23 Typ | 50 Typ | 82 Typ | 47 Typ | |||||||
Physical Properties
| Melting Point - Liquidus°F | 1660 |
|---|---|
| Melting Point - Solidus°F | 1650 |
| Densitylb/cu in. at 68°F | 0.303 |
| Specific Gravity | 8.39 |
| Electrical Conductivity% IACS at 68°F | 28 |
| Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F | 71 |
| Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) | 11.6 |
| Specific Heat CapacityBtu/ lb /°F at 68°F | 0.09 |
| Modulus of Elasticity in Tensionksi | 15000 |
| Modulus of Rigidityksi | 5600 |
Fabrication Properties
| Technique | Suitability |
|---|---|
| Soldering | Excellent |
| Brazing | Excellent |
| Oxyacetylene Welding | Good |
| Gas Shielded Arc Welding | Fair |
| Coated Metal Arc Welding | Not Recommended |
| Spot Weld | Good |
| Seam Weld | Not Recommended |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Fair |
| Capacity for Being Hot Formed | Excellent |
| Forgeability Rating | 90 |
| Machinability Rating | 40 |
Thermal Properties
| Treatment | Minimum* | Maximum* | ||
|---|---|---|---|---|
| * Temperature is measured in Fahrenheit. | ||||
| Annealing | 800 | 1100 | ||
| Hot Working Temperature | 1150 | 1450 | ||
Applicable Specifications
| Form | Specific Sub-Form | Application | System | Standard | Description |
|---|---|---|---|---|---|
| Bar | ASTM | B36/B36M | BRASS PLATE, SHEET, STRIP AND ROLLED BAR | ||
| Plate | ASTM | B36/B36M | BRASS PLATE, SHEET, STRIP AND ROLLED BAR | ||
| Seamless Condenser Tube & Ferrule Stock | Condenser Tube | ASME | SB111 | COPPER AND COPPER ALLOY SEAMLESS CONDENSER TUBES & FERRULE STOCK | |
| Condenser Tube | ASTM | B111/B111M | COPPER AND COPPER ALLOY SEAMLESS CONDENSER TUBES AND FERRULE STOCK | ||
| Seamless Tube | ASME | SB135 | SEAMLESS BRASS TUBE | ||
| Sheet | ASTM | B36/B36M | BRASS PLATE, SHEET, STRIP AND ROLLED BAR | ||
| Strip | ASTM | B36/B36M | BRASS PLATE, SHEET, STRIP AND ROLLED BAR | ||
| Tube | Seamless (Metric) | ASTM | B135/B135M | Seamless Brass Tube | |
| ASTM | B135 | Tube, Seamless | |||
| FEDERAL | WW-T-791 | TUBING: BRASS, SEAMLESS |
Our factory
We operate a modern, specialized copper production facility equipped with advanced continuous casting and rolling lines, precision CNC machining equipment, and a rigorous quality inspection system, focusing on the manufacturing of copper tubes, plates, rods, wires, and strips. The factory is ISO9001 certified and possesses a complete industry chain capability-from raw material smelting and precision processing to finished product sorting. With an annual production capacity of tens of thousands of tons, we can flexibly handle customized orders, ensuring that our products meet international standards in dimensional accuracy, mechanical properties, and surface finish.
Copper product packaging
We implement customized packaging solutions based on product characteristics: copper tubes and rods are wrapped with moisture-resistant kraft paper, reinforced with bundling, and secured on wooden pallets or iron frame boxes to prevent deformation and damage during transit. Copper plates and strips are covered with protective film, separated by foam padding between layers, and externally secured with steel strapping along with waterproof packaging. Wires are coiled on industrial reels or vacuum-packed with plastic film. All packaging includes clear labels indicating product specifications, batch numbers, and protective symbols, ensuring safe delivery during long-distance sea and land transportation.
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