C-90700 : TIN BRONZE

Description :

Tin Bronze comes from a family of Copper Tin Alloys containing up to 15% Tin. Tin Bronzes are more ductile and stronger in comparison to red brasses and semi red brasses. They have high wear resistance and low friction coefficent against steel. Tin Bronzes are also best known for their Corrosion resistance. Unlike Leaded Tin Bronzes, these alloys contain only minor traces of lead which improves the ductility and tensile strength. High Tin Bronzes are particularly used for certain applications where the less expensive bronzes are not suitable.


C90700 is a hard strong Alloy with good corrosion resistance in seawater. It is one of the oldest bronze alloy used for gear manufacturing which is still prevailing till date. The higher Tin content in this alloy provides strength, toughness and good machinability.

CHEMICAL COMPOSITION :

ELEMENT Copper Aluminium Iron Nickel Zinc Lead Tin Silicon Sulphur Antimony Phosphorus
Min (%) 88.00 - - - - - 10.00 - - - 0.30
Max (%) 90.00 0.005 0.15 0.50 0.50 0.50 12.00 0.005 0.05 0.20 1.50

Note: Ni includes Co; Cu+ named elements >= 99.5%; Unless otherwise noted, single values represent maximums.

AEPL produces BC-2, BC-3, C90200, C90500, C90800, C91700, CC-480K, CC-483K, CuSn8, CuSn10, CuSn10Zn2, CuSn11P, CuSn12, CuSn12Ni2, Tin Bronze alloy in the form of Certified Ingots weighing from 8 to 10 Kgs each.


QUALITY :

AEPL has implemented a quality system for Copper Based Alloys where all processes are monitored from start to finish i.e. from procurement of raw material, their combination, manufacturing processes, measurement and chemical analysis. We maintain our own laboratory with calibrated equipments to ensure delivery of certified ingots as per International Standards and satisfy clients' requirements. The equipment includes Optical Emission Spectrometer which uses arc and spark excitation technology. Samples of test reports are available upon request.


VALUE ADDED SERVICES :

AEPL manufactures and supplies Copper Alloys products to Domestic as well as International Markets. Located at a single site, our smaller foundries are equipped to use in-house certified ingots and create complex shapes of Copper alloy castings and turn them into finished components using Drilling, Grinding and CNC turning centres.


COMPARATIVE SPECIFICATIONS :

CDA: C90700 C90500 C90800 OTHER : TIN BRONZE

FABRICATION PROPERTIES :

soldering brazing machinability rating
EXCELLENT GOOD 20

CASTING CHARACTERISTICS :

Casting Attribute Level
CASTING YIELD MEDIUM
DROSSING LOW
FLUIDITY HIGH
GASSING MED- HIGH

TYPICAL USES :

product category product reason
INDUSTRIAL: Bearings, Bearings for Heavy Loads and Relatively Low Speeds, Gear Boxes, Gears, Restaurant Equipment, Speed Reducers, Valve Bodies, Worm Gears, Worm Wheels. Corrosion Resistance, Low Co-efficient of Friction, Wear Resistance, Moderate Strength, Good Resistance to Corrosion, Machinability Good, Pressure Tight up to 260 C, Appearance, Corrosion Resistance to Fresh Water, Corrosion Resistance to Numerous Environments, Corrosion Resistance to Saline Solutions.

STANDARD PACKAGING : WOODEN PALLETS