Yellow Metals - Characteristics
Yellow Metals - Characteristics | |||||
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Spec.
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Most Commonly Used Conditions
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Description
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Most Commonly Available Forms
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Characteristics
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Typical Uses
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C101
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SOFT; HALF-HARD; HARD
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Electrolytic tough pitch high conductivity copper
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sheet, plate, bar & tube
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High electrical conductivity and corrosion resistance. Ductile. Limited machining capabilities.
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Electrical conductors, cold heading applications, holloware, architectural cladding.
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C106
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HALF-HARD
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Phosphorus deoxidised non-arsenical copper (Dona)
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sheet, plate, tube
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High phosphorus content reduces electrical conductivity, but greatly increases weldability in most forms. Ductile. Limited machinability. Good corrosion resistance.
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Gas and heating installations, spinning, pressing, food processing equipment.
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CZ101
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SOFT
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Gilding metal
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sheet
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Very good corrosion resistance. Ductile. Very good for brazing and soldering, but limited machining capabilities. Attractive golden colour.
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Jewellery, display cabinets, name plates, fascias.
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CZ106
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SOFT
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Deep drawing brass (cartridge brass)
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sheet
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Very ductile, especially where deep pressings need to be allied with strength. Very good for brazing and soldering, but limited machining capabilities.
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Fire extinguisher bodies, lamp caps, hinges, flashlight cases.
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CZ108
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HALF-HARD
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Common' brass
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sheet, plate, bar, tube, sections
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General purpose brass with good ductility for bending and simple presswork. Good for brazing and soldering, but limited machining capabilities.
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Instrument covers and containers, radiator tanks.
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CZ112
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Naval brass
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plate, bar
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The addition of tin greatly improves corrosion resistance, especially in sea water. Good ductility if hot formed. Good for brazing and soldering, but with limited machining capabilities.
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Marine and underwater equipment.
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CZ114
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High tensile brass (formerly manganese bronze)
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bar
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Combines high strenth with good corrosion resistance. Good ductility only if hot formed, good for soldering and brazing. Good machining capabilities.
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Heavy engineering, shipbuilding
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CZ120
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HARD
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Leaded brass engraving quality (compo)
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sheet
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Good machining capabilities. Produces a good clean cut in the hard condition for close tolerances. Ductile only if hot formed. Good for brazing and soldering.
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Gears, clock parts, engraved plates.
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CZ121-Pb3
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Free machining brass (CZ121-Pb4 for increased machining speeds)
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bar, hollow bar & sections
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Excellent high speed machining capabilities, but with limited cold working properties. Good for soldering and brazing.
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Machined components such as screws, nut & bolts. Architectural sections.
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CZ126
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HALF-HARD, HARD
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70/30 arsenical brass
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tube
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General purpose brass with the addition of arsenic to reduce corrosion.
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Condensers, heat exchangers, sanitary fittings.
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CZ131
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Rivetting quality brass (supersedes CZ119)
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bar
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High copper content improves ductility, whilst reduced lead content still retains limited machining properties. Excellent for soldering. Good for brazing.
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Cold heading products, rivets, screws, trye gauges.
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PB102
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HARD
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Wrought phosphor bronze
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sheet, bar
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High strength, good resistance to corrosion and corrosion fatigue make this grade suitable for components subject to friction. Limited machining capabilities.
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Springs and instrument components.
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CA104
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Aluminium Bronze
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bar
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Addition of aluminium increases strength and greatly improves corrosion resistance. Good machining properties. Suitable for hot stamping. Readily welded via mig & tig.
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Highly stresses bearings, and in the marine and chemical industries.
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SAE660
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Continuous cast leaded bronze
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bar and cored bar
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Suitable for unhardened shafts which are not subject to heavy side impact loads. Lead improves machining and plasticity. Will withstand some misalignment & short periods of inadequate lubrication.
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Bearings for unhardened shafts.
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PB1
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Continuous cast phosphor bronze
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bar and cored bar
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The addition of tin improves corrosion resistance and strength. Designed for bearings running with hardened shafts where good lubrication and alignment are essential.
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Bearings for hardened shafts.
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LPB1
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Continuous cast leaded phosphor bronze
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bar and cored bar
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The addition of lead increases plasticity & the reduction of tin lessens corrosion and abrasion resistance in this variant of PB1
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Lower stressed bearings and fitting such as valves. Steam pressure fittings.
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LB4
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Continuous cast leaded bronze
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bar and cored bar
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Suitable for unhardened shafts which are not subject to heavy side impact loads. Lead improves machining and plasticity. Will withstand some misalignment & short periods of inadequate lubrication.
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Bearings for unhardened shafts.
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LG2
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Continuous cast leaded gun metal
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bar and cored bar
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A good general alloy. Suitable where corrosion resistance and resonable bearing characteristics, but at a lower cost, are important.
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Marine industry. Some water and steam fittings, intricate tight pressure castings.
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