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
0.625
Alloy
145
Temper
H02
Metal Type
Copper
Shape
Bar-Round
Yes
RoHS
Yes
REACH
Yes
Weight/Lineal Foot
1.19 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 (Tellurium Copper), is ideal for electrical components such as circuit breaker terminals, transformers, and hot forged studs. Its excellent thermal and electrical conductivity combined with good corrosion resistance and machinability make it suitable for high-speed automatic screw machines and other precision applications.

Yes, this copper round bar is available for custom cutting from the warehouse. Length options range up to a maximum of 144 inches, allowing you to order the exact size needed for your project.

The 145-H02 copper round bar offers a machinability rating of 85, making it significantly easier to machine than pure copper. It has a yield tensile strength of 40 ksi, ultimate tensile strength of 43 ksi, and a Brinell hardness of 77, providing good strength and durability.

Yes, this copper round bar complies with RoHS and REACH regulations, ensuring it meets environmental and safety standards. Additionally, Material Test Reports (MTR) are available for quality assurance.

The 5/8" Copper Round Bar 145-H02 is in stock and available in multiple cut lengths from 12 inches up to 144 inches. Shipping weights vary by length, and the product is shipped from a warehouse that supports custom cutting.

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