Copper Alloy Strip Products

Copper

101

Known as Oxygen-Free Electronic (OFE). It reaches a minimum of 101% IACS conductivity rating. It is the most expensive out of the 101-110 group because of it's composition, 99.99% pure copper with 0.0005% oxygen.

102

An oxygen-free copper which has better forming, resistance to hydrogen embrittlement, and brazing characteristics than C110 ETP. C102 has good solder-ability and corrosion resistance and is used for high current applications.

110

Also known as electrolytic tough pitch (ETP) copper, is used most in electric current carrying applications. 110 Copper is 99.9% pure copper with an electrical conductivity rating of 100+ % IACS. Conductivity, corrosion resistance, and ductility makes 110 Copper very versatile over a broad range of applications.

110 Copper has a poor machinability rating of 20%. It does, however, have excellent hot and cold forming characteristics. 110 Copper, being a tough pitch copper alloy, is not easily welded or brazed because it suffers from embrittlelment when heated in a reducing atmosphere. This occurs because hydrogen reacts with the oxide in the metal to form steam and causes cracking. Oxygen-Free coppers are made for welding operations if needed. 110 Copper can be soldered with good results.

C110 Copper has a broad range of uses, including plumbing fittings, electrical components, wave guides, base plates, bus bars, heat exchanger components, blade and ring terminals, cables, power transmission components, automotive spark plug electrodes, resistance welding electrodes, fuses terminals, and high conductivity items for use at raised temperatures. Both hot and cold forming characteristics are excellent and can be used wherever extensive machining is not required.

151

Alloy C151 has excellent solderability, high conductivity, and good strength. C151 has superior softening resistance compared to pure copper C110, which will soften upon heating, limiting the application environment.

Applications can be found in high current interconnects, pin grids, welding wire, or other elevated temperature applications.

194

A first generation high performance alloy used worldwide. C194 combines good electrical conductivity with high tensile strength, good solderability and plateability.

Applications include connectors, semiconductor pins and leadframes, sockets and mass terminations.

197

A high conductivity copper alloy possessing an excellent combination of strength, conductivity and softening resistance.

This alloy can be substituted for medium tempers of brass and bronze when higher electrical conductivity is required or better solderability is needed.

Alloy C197 is an improved version of alloy C194 and has substantially greater conductivity at the same strength levels.

Brass

210

Most commonly known for its resistance to corrosion. The alloy also lends itself to deep drawing such as bullet jackets and electrical applications where formability and conductivity are required.

Typical uses are for architectural ornamental trim, emblems, plaques, connectors, rotor bars, AC motors, fasteners, bullet jackets, fuse caps, firing pins, and coins.

220

Known for having very good corrosion resistance, great cold workability and good hot workability for drawing, blanking, coining, stamping, piercing and punching.

Typical uses include plumbing brass, small arms cartridges, cable wrap, marine hardware, flexible tube, blots, screws, wave guides costume jewelry and kick plates.

230

Known for having an electrical conductivity of 37%, red color, corrosion resistance, excellent formability and moderate strength.

Typical uses include costume jewelry, eyelets, fasteners, conduit, heat exchangers, flexible metal hose, pipe, and couplings.

240

Has excellent ductility, corrosion resistance and strength which allows it to be deep drawn, etched, stamped, blanked and bent.

Typical uses include musical instruments, battery caps, flexible hose, and decorative pieces because of its yellow color.

260

The alloy has good strength but poor stress relaxation characteristics and does not make a particularly good spring material.

Although it has good conductivity, the solderability of the alloy is severely impaired by its high zinc content.

Commonly used for electrical components, electronic parts, and mechanical fasteners.

268

Often used as a less expensive alternative to alloy 260.

Typical uses include eyelets, hardware accessories, automotive radiator cores, and fasteners.

Tin Brass

425

A low zinc-containing alloy with good combination of tensile strength, electrical conductivity, formability and corrosion resistance.

Applications include electrical springs, connectors and terminals.

Phospher Bronze

510

An alloy with good strength, formability and stress relaxation characteristics and solderability.

Applications include electronic parts, springs, switches, contacts and fasteners.

511

Offers a strong array of engineering properties including wear resistance, high strength, ductility, excellent spring properties and good bearing properties.

Typical uses include fuse clips, switch parts, terminals, electronic connectors, bridge bearing plates and bellows.

519

Has 6% nominal tin producing higher mechanical strengths with a slight decrease in electrical conductivity when compared to C510 phosphor bronze. Often functionally interchangeable with C510 which predominates in North America, alloy C519 is generally used in Europe.

521

A high tin alloy of the phosphor bronze family. The additional tin relative to the more commonly used C510 results in higher mechanical properties with a modest reduction in electrical conductivity.

Applications include electronic parts, springs, contacts, switch parts and fasteners.

524

Good to excellent corrosion resistance. Good cold workability for blanking, forming, bending and shearing.

Applications requiring good spring qualities, reliency, fatigue resistance, good wear and corrosion resistance.

Copper Nickel

706

An alloy with excellent corrosion resistance, especially in marine applications. It has a pretty high strength and has resistance at elevated temperatures. The cost is relatively high compared to copper-aluminum and other alloys with similar mechanical properties.

Typical uses include brake lines, screw lamp bases, boat hulls, pipe fittings, heat exchanger tubes, and flanges.

715

An alloy with excellent corrosion resistance, especially in marine applications. It has moderately high strength and has good creep resistance at elevated temperatures. The cost is relatively high compared to copper-aluminum and other alloys with similar mechanical properties.

Typical uses include flexible metal hoses, salt water flanges, and applications where corrosion resistance is imperative.

725

A moderate strength, low conductivity alloy with excellent bare solderability and corrosion resistance.

Applications include electronic parts, springs, connectors and wire wrap terminals.

Nickel Silver

735

Alloy that is used for coinage, name plates, zippers, flatware, and fashion jewelry.

752

An 18% nickel silver alloy combining corrosion resistance with strength and a lustrous silver color.

Applications include optical frames and parts, springs, surgical instruments, jewelry, resistors and contacts.

762

An alloy that has great strength, stress relaxation resistance, and solderability. Due to it being extremely resistant to corrosion it doesn't tarnish easily and has a long shelf life.

Typical uses include springs for relays, condensers, and decorative belt buckles.

770

An alloy that has good cold forming properties, is tarnish resistant and has very good spring properties. 770 does not become subject to embrittlement at lower temperature and it has excellent corrosion resistance.

Typical uses include springs, resistance wire and optical goods.

High Performance

19010

19010 is an extreme versatile copper nickel silicon alloy. It has an excellent combination of strength, conductivity and formability that makes it great for many design.

Typical uses include terminals, relays, connectors, sockets, clips and springs.

19210

19210 has higher strengths than most alloys but thanks to chemistry and processing it retains formability and conductivity that other copper alloys lose.

Typical uses include cooling fins for radiators, connectors, terminals, IC lead frames, and heat resistant applications.

7026

7026 is used in springs, terminals, elevated temperature interconnects and high reliability telecommunication components.

MSP1

MSP-1 Copper alloy with magnesium has high conductivity (63% International Annealed Copper Standard), high strength and excellent thermal creep properties.

Typical uses include terminals, connectors, relays, springs, switches, sockets, and junction boxes.

MAX251

Max 251c is a copper alloy boasting excellent balance in hardness, formability and conductivity.

Typical uses include lead frames, circuit breakers, connectors, electrical springs, contact terminals, and fuse clips.