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Copper

Copper
Category: Nickel Alloy
Copper, known for its reddish colour, corrosion resistant, and conductivity, its properties are ideal in a wide range of products from electrical wiring to plumbing fixtures including architectural products. Many manufactures offer superior copper alloys for virtually any applications. Here is an over view of copper alloys as well as their characteristics, benefits and its usages.

What is Copper Alloys?

Copper is a natural elemental metal, pure copper is used into manufacturing. This element can be combined with a number of metals to form alloys that enhance thermal and electrical conductivity, it possess good strength, is corrosion resistant and has antimicrobial properties. The basic properties in copper include:

Conductivity

Copper is one of the finest thermal and electrical conductive materials available hence it’s the most sorted material for electrical products especially wiring and its connections.

Strength

With its pureness it is malleable, this makes it easy to process into wires or hammered into thin sheets for cladding. With a mixture of tin, nickel and others metals super alloys grades are created for more strength and durability according to requirements.

Formability

Copper’s malleability promotes the requirement of conductive miniaturized electronic components and wires without heat treatment. It also helps in heavy duty applications maintaining strength with its cold forming properties. Pure copper is also easy to solder and braze allowing it to even join with other metals, its formability further makes copper and its alloy easy to rivet, bolt and crimp.

Corrosion

Copper displays exceptional corrosion resistance to moisture, saltwater and a variety of harsh chemicals.

Antimicrobial

Uncoated copper is an antimicrobial killing up to 99.9% of microbes within two hours of exposures.

Color

Copper has an amazing reddish colour and can be worked around with others metals to makeup an additional range of colours from gold, bronze, silver to matte grey.

Advantages of copper

There are a wide range of benefits to be offered by Copper and its alloys.

Electrical Conductivity

Cu alloy has good conductivity although some copper are more conductive than other, but from a general prospective all copper alloys electrically conductive to some degree.

High Thermal Conductivity

Oxygen Free Copper Alloys is an excellent heat conductor, hence it’s suitable for usages’ that require rapid heat transfer.

Non Magnetic.

Basically copper is non-sparking and non-magnetic alloy, this feature makes it an ideal choice for special tools made for military purposes.

Recyclable

Copper is 100% recycled to an infinite amount of times without losing any of its properties.

Corrosion Resistance

Having a low reactivity it tends not to corrode when exposed to different chemicals and elements, even moisture doesn’t effect it by corrosion.

Antimicrobial Properties

Copper alloys is excellent to microbial contaminations, making it a great source to control infections and contaminations.

Copper Products

Brass Products

Types of Copper & Copper Alloys

Cu Alloy ASTM Standard

ASTM B16/ ASME SB16
ASTM B21/ ASME SB21
ASTM B42 / ASME SB42

Specification of Copper

Oxygen Free Copper Alloys (OFHC & OFE)
OFHC Copper materialETP Copper ( IS 1897)
Oxygen (.001%) less than 10 ppm of oxygen (.015-.04% oxygen) 150 - 400 ppm oxygen.
Electrical / thermal conductivity100% Minimum IACS Conductivitymay vary on processing semis.Min 99.99% IACS Conductivity
Bending test Passes close bending test not applicable
Thermal cycle behavior Its Better Poor behavior
Poor behaviorConsistency May lead to inconsistent
Suitable in high vacuum devices It is Suitable Unsuitable

Cu Alloy Applications & Uses

Copper Composition

BS / EN Available formsEQUIVALENTS BS (OLD)
1057 Seamles tubing round2871 Pt1
12449 Seamles tubing round2871 Pt2
12450 Seamless capillary tubing
12451 Seamles tubing round 2871 Pt3
12452Rolled and seamless finned tubing-
12735 Seamles tubing round Part 1 / 2-
13348Seamles tubing round-
13349 Pre-insulated tube-
13600 Seamless copper tubing1977

Properties of Cu Alloy

Melting Point: Pure Copper is 1083ºC.
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