See Copper Tolerances

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.

shape Image

Dimension Name


Alloy 145
Temper H02
Diameter 0.625
Max Length 144
MTR Availability Yes
Full Length true
Material Copper
Shape Bar-Round
Custom Cut Warehouse 1
Material Specifications

This material meets the following specs: ASTM -B249, ASTM -B301

Weight/Lineal Foot

1.19 pounds
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.

Mechanical Properties

Property Value
Rockwell Hardness B scale 42
Density g/cm^3 9
Elongation Typical % 30
Modulus of Elasticity KSI x 10^3 17
Thermal conductivity BTU-in/hr-ft^2-°F 2460
Melting Point °F 1924 - 1967
Specific Heat BTU/lb-°F (32-212F) 0 min
Ultimate KSI 42
Yield KSI 40
Ultimate shear strength KSI 25

Chemistry Information: 145 Copper

Element Percentage
Cu 99.5
P 0.008
Te 0.5
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