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.

MTR MTR Available
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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
0.3125
Alloy
145
Temper
H02
Metal Type
Copper
Shape
Bar-Round
Yes
RoHS
Yes
REACH
Yes
Weight/Lineal Foot
0.3 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

This copper round bar, alloy 145 with H02 temper, is ideal for electrical components such as circuit breaker terminals, transformers, and hot forged studs due to its excellent thermal and electrical conductivity, good corrosion resistance, and excellent machinability.

Yes, custom cut lengths are available from the warehouse, with maximum lengths up to 144 inches. Multiple length options are in stock to meet your project needs.

Yes, this product complies with both RoHS and REACH regulations, ensuring it meets environmental and safety standards.

The 145 alloy copper bar offers significantly easier machining than pure copper, with a machinability rating of 85, making it well suited for high-speed automatic screw machines and other precision machining applications.

Yes, a Material Test Report (MTR) is available for this product, providing detailed certification of its material properties.

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