Copper Round Bar 145, also called Tellurium Copper, has excellent thermal and electrical conductivity, good corrosion resistance, goor malleability, and excellent machinability. 145 is mechanically similar to pure copper, but significantly easier to machine. It is typically used in high-speed automatic screw machines, circuit breaker terminals, hot forged studs, transformers, and other elextrical components.

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Product Information

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Please note:

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Please note that this data is to be used ONLY FOR REFERENCE, NOT FOR DESIGN, and by using it,you agree that any decisions you make regarding materials for your project are at your own discretion.
Diameter
2.75
Alloy
145
Temper
H02
Metal Type
Copper
Shape
Bar-Round
Yes
RoHS
Yes
REACH
Yes
Weight/Lineal Foot
23.01 pounds
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Mechanical Properties

Shear Strength KSI
26
Density g/cm^3
9
Elongation % in 2 in.
18
Brinell Hardness 500 kg load
77
Electrical Conductivity % IACS
94
Yield Tensile Strength KSI
40
Ultimate Tensile Strength KSI
43
Melting Point °F
1924 - 1967
Machinability %
85
Rockwell Hardness B Scale
43
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Chemistry Information : 145 Copper

Element
Percentage
Element
Percentage
Element
Percentage
Cu
99.5
P
0.008
Te
0.5

Yes, this copper round bar can be custom cut at the warehouse. It is available in various lengths up to 144 inches, allowing you to order the exact size needed for your project.

Absolutely. The 145 alloy, also known as Tellurium Copper, offers excellent electrical conductivity (94% IACS) and good corrosion resistance, making it ideal for electrical components like circuit breaker terminals and transformers.

The 145 alloy contains tellurium which significantly improves machinability, rated at 85, while maintaining mechanical properties similar to pure copper. This makes it excellent for high-speed automatic screw machines and other precision machining.

Yes, this product is RoHS and REACH compliant, ensuring it meets important environmental and safety regulations.

A 12-inch length of this copper round bar weighs approximately 23 pounds. Shipping weight increases proportionally with length, so longer bars will be heavier and may affect shipping costs.

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