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UNS C44300 Copper-Zinc-Tin Alloys
Brass refers to a broad range of copper-zinc alloys comprising a variety of properties such as ductility, strength, hardness, color, machinability, wear-resistance, antimicrobial, corrosion-resistance, and electrical and thermal conductivity. UNS C44300 brass alloys are one of the types of brass, which also are known as admiralty and arsenical brass.
UNS C44300 composition
| Element | ||||||
|---|---|---|---|---|---|---|
| Cu(1) | Pb | Sn(2) | Zn | Fe | As | |
| (1) Cu + Sum of Named Elements 99.6% min.(2) For tubular products, the minimum Sn content may be 0.9%. | ||||||
| Min (%) | 70.0 | 0.8 | 0.02 | |||
| Max (%) | 73.0 | 0.07 | 1.2 | Rem | 0.06 | 0.06 |
Mechanical Properties (Admiralty Brass UNS C44300)
| Form | Temper Code | Tensile Strength (ksi) |
YS-0.5% Ext (ksi) |
Elongation (%) |
Rockwell F scale | Rockwell 30T scale | Torsion Modulus (ksi) |
Izod (ft-lbs) |
Section Size (in) |
|---|---|---|---|---|---|---|---|---|---|
| Plate | M20 | 48 Typ | 18 Typ | 65 Typ | 70 Typ | 5.8 Typ | 60 Typ | 1 | |
| Strip | O50 | 48 Typ | 14 Typ | 62 Typ | 0.04 | ||||
| O60 | 45 Typ | 13 Typ | 69 Typ | 0.04 | |||||
| Tube | OS025 | 53 Typ | 22 Typ | 65 Typ | 75 Typ | 37 Typ | |||
| Wire | OS015 | 55 Typ | 60 Typ | 0.08 | |||||
| * Measured at room temperature, 68°F (20°C). | |||||||||
UNS C44300 Physical Properties
| Melting Point - Liquidus°F | 1720 |
|---|---|
| Melting Point - Solidus°F | 1650 |
| Density lb/cu in. at 68°F | 0.308 |
| Specific Gravity | 8.53 |
| Electrical Conductivity% IACS at 68°F | 25 |
| Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F | 64 |
| Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) | 11.2 |
| Specific Heat CapacityBtu/ lb /°F at 68°F | 0.09 |
| Modulus of Elasticity in Tensionksi | 16000 |
| Modulus of Rigidityksi | 6000 |
Applicable Specifications
| Sheet | ASTM B 171 / B 171 M, ASTM B 432 |
| Tube | ASTM B111 UNS C44300, ASTM B111M UNS C44300, ASTM B 135 / B 135 M, ASTM B 359 / B 359 M, ASTM B 395 / B 395 M, ASTM B 543 / B 543 M, ASTM B 956 |
Machinability
The machinability rate of UNS C44300 brass alloys is 30.
Welding
Soldering, brazing, oxyacetylene welding, gas-shielded arc welding, spot welding, and butt welding are considered as suitable welding processes, whereas processes such as coated metal arc welding and seam welding are not recommended for UNS C44300 brass.
Hot Working
The hot forming capacity of UNS C44300 is rated as fair with the recommended hot working temperatures ranging between 649 and 788°C (1200 and 1450°F).
Cold Working
UNS C44300 brass alloys have an excellent cold working properties.
Annealing
The annealing temperature of UNS C44300 brass alloys is between 427 and 593°C (800 and 1100°F).
Products provided by GNEE
| Product Category | UNS Numbers | Typical Sizes | Thickness/Diameter | Available Forms | Surface Treatment |
|---|---|---|---|---|---|
| Pure Copper | C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10900, C11000, C11100, C11300, C11400, C11500, C11600, C12000, C12200 | 1000-6000mm (length) | 0.1-200mm | Sheet, Plate, Strip, Foil | Mill finish, Polished, Bright annealed, Oiled, Brush finished |
| Brass Alloys | C21000, C22000, C23000, C24000, C26000, C26800, C27000, C27200, C28000, C33000, C33200, C33500, C34000, C34500, C35000, C35300, C35600, C36000, C36500, C37000, C37700, C38500 | 500-4000mm (length) | 0.05-150mm | Rod, Bar, Wire, Tube | Polished, Chrome plated, Lacquered, Satin finish |
| Bronze Alloys | C51000, C52100, C52400, C53400, C54400, C63000, C63200, C64200, C65100, C65500, C65700, C67300 | 1000-3000mm (length) | 0.2-100mm | Bar, Rod, Plate, Strip | Polished, Oxidized, Oiled, Ground |
| Copper-Nickel | C70400, C70600, C71000, C71500, C72200 | 2000-6000mm (length) | 0.5-250mm | Tube, Plate, Sheet | Pickled, Passivated, Polished |
| Phosphor Bronze | C50100, C50500, C50700, C51000, C51100, C51900, C52100, C52400 | 500-2000mm (length) | 0.05-50mm | Strip, Wire, Sheet | Polished, Tin plated, Natural |
