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Alcobra Metals, Inc. : Distributor of Specialty Metals

Brass Product Guide

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Brass is an excellent metal for cold working and is easily shaped. It is rust proof, corrosion resistant, and polishes to a rich golden color. Brass is easily soldered and brazed and accepts plating readily. The typical composition is 70% copper and 30% zinc. Increasing zinc content increases strength and ductility, while also producing a more “golden” color variation. Generally known for several things - decent strength, free machining, forming, electrical conductivity and it can be polished easily.

C230 Brass (available in Pipe)
C260 Brass (available in Plate, Sheet)
C330 Brass (available in Tube)
C360 Brass (available in Hex, Rectangle, Round, Square)

230 Brass (Red Brass)

As the name would imply, this material is reddish in color. It is one of the stronger brass items that we carry.

C230 Red Brass

Minimum Properties

Ultimate Tensile Strength, psi 40,000
Yield Strength, psi 18,000
Elongation 5%
Rockwell Hardness B77

Chemistry

Copper (Cu) 84 - 86%
Zinc (Zn) 15%
Iron (Fe) 0.05% min
Lead (Pb) 0.06% min

260 Brass (Cartridge Brass)

C260 has a high zinc content (normally 70% copper and 30% zinc) giving it the optimum combination of strength and ductility while maintaining the high formability of copper. It has excellent cold workability and is used extensively in the automotive industry, also in the manufacturing of plumbing, hardware, and ammunition components.

C260 Cartridge Brass

Minimum Properties

Ultimate Tensile Strength, psi 62,000
Yield Strength, psi 52,200
Elongation 23%
Rockwell Hardness B77

Chemistry

Copper (Cu) 68.5 - 71.5%
Zinc (Zn) 28.5 - 31.5%
Iron (Fe) 0.05% max
Lead (Pb) 0.07% max

330 Brass

C330 is primarily used for tubing and has a low lead content. C330 brass combines good machinability with excellent cold workability. It is fabricated by forming, bending, machining, piercing and punching.

C330 Brass

Minimum Properties

Ultimate Tensile Strength, psi 65,300
Yield Strength, psi 50,000
Elongation 32%
Rockwell Hardness B70

Chemistry

Copper (Cu) 65 - 68%
Zinc (Zn) 33.5%
Iron (Fe) 0.07% max
Lead (Pb) 0.2 - 0.8%

360 Brass (Free Machining Brass)

Is ideally suited for high-speed machining operations with its superior machinability, thread rolling and knurling characteristics. Its machinability rating of 100 is the standard against which all other copper alloys are rated It is easily soldered or brazed and has good resistance to corrosion. Typical applications include gears, pinions, plumbing ware fittings, valves, and screw machine products. Conforms to ASTM specification B16.

C360 Free Machining Brass

Minimum Properties

Ultimate Tensile Strength, psi 58,000
Yield Strength, psi 45,000
Elongation 25%
Rockwell Hardness B78

Chemistry

Copper (Cu) 60 - 63%
Zinc (Zn) 35.5%
Iron (Fe) 0.35% max
Lead (Pb) 2.5 - 3.7%

Alcobra Metals states that all technical data is for comparison purposes only and is NOT FOR DESIGN. It has been compiled from sources we believe to be accurate but cannot guarantee. Please consult an engineer.

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Alcobra Metals, Inc. Phone-in Orders Welcome!
4510 North Freya Phone 509 482 4435   Fax 509 482 4512   Toll Free 800 239 5608
Spokane, Washington 99217 E-mail: info@alcobrametals.com

Alcobra Metals is the online metal store for small quantity metal orders including metal orders by phone and complete metal sales and support. Alcobra Metals' wide selection of industrial metals includes aluminum, copper, brass, stainless steel, bronze, hot roll steel, cold roll steel, titanium, tool steels, and composit products. Alcobra Metals specializes in cut-to-length materials. You buy only what you need. There are no minimum orders. Same day UPS shipping for orders by noon.

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