Brass & Bronze Investment Casting

Lestercast provide high quality Brass & Bronze Investment Castings to companies across a wide range of industries.

Bronze is a metal alloy, made up mostly of copper, about 12 to 12.5% tin, and other metals such as aluminum, manganese, zinc, or nickel. Bronze conducts of heat and electricity better than most steels. It is generally more expensive than steel, but cheaper than nickel-based alloys. It has a dull-gold appearance and faint rings on its surface.

Silicon Bronze is made using around 94-96% copper by weight, and the rest is typically 2.5-6% silicon and a mixture of other metals such as aluminum, zinc, lead, iron, manganese, and more. It is a high-strength alloy, with an easy pouring ability, high corrosion resistance, and appealing surface finish. Silicon bronze is more resistant to water corrosion than brass, making it highly useful for marine applications. Common applications include pump and valve parts. Its high resistance to corrosion also makes it ideal for use in the chemical industry.

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ADVANTAGES OF BRASS & BRONZE INVESTMENT CASTING

HIGH DIMENSIONAL ACCURACY

THERMAL & ELECTRICAL CONDUCTIVITY

AESTHETICALLY PLEASING DUE TO COLOUR

RECYCLABLE

HIGH TENSILE STRENGTH

AFFORDABLE

Silicon Bronze Light Pendant Case Study

Read how Lestercast used Rapid Prototyping as part of the Investment Casting process to reduce cost and production times…..

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OTHER PROPERTIES OF BRASS & BRONZE TO CONSIDER;

Not corrosion resistant.

Poor mechanical properties at elevated temperatures.

Types of Copper Based Alloys

Gunmetal – LG2
Bronze – PB1
Bronze – PB2
Brass – SCB3
Silicon Bronze
High Tensile Brass – HTB

Industrial use of Brass & Bronze

Art Based Projects
Architecture
Electrical

The data is the table should be used for guidance only.

SPECIFICATION	BS	TYPE	CHARACTERISTICS & TYPICAL APPLICATIONS
SPECIFICATION	BS	TYPE	CHARACTERISTICS & TYPICAL APPLICATIONS
LG2	BS1400	Leaded Gunmetal 85/5/5/5	Moderate strength, good corrosion resistance to sea water. Pump bodies, bearings and gears with low loads and adequate lubrication.
PB1	BS1400	Phosphor Bronze	Resistant to sea water, dilute acids and boiler feed water. Good bearing alloy for high loads with good lubrication.
PB2
SCB3	BS1400	Brass	General purpose engineering material with good machining properties. Not suited to sea water or boiler feed water applications.
HTB1	BS1400	High Tensile Brass	Strong alloy, resistant to sea water corrosion. Used for ships propellers.