Also known as C145 copper, Copper 145, Alloy 145, Alloy C14500, 145 half-hard tellurium, or TeCu, this material contains between 0.4 and 0.7% of tellurium as well as 0.004 and 0.120% of phosphorous. Tellurium copper demonstrates good electrical and thermal conductivity, good formability, and high machinability. These properties make it suitable for a wide range of industrial applications.
Properties of Tellurium Copper (C145 Copper)
C145 belongs to the free-machining copper category, offering machinability far exceeding that of pure copper. While pure copper has a machinability rating of 20%, this alloy boasts a machinability rating of 85%, enabling faster machining and longer tool life. This is due to the precipitation of copper telluride within the C145 microstructure, which creates short chips. Telluride copper is also highly conductive, making it well-suited for electrical applications.
Some of the mechanical, chemical, electrical, and fabrication properties of tellurium copper include:
Resistance to atmospheric corrosion
Resistance to hydrogen embrittlement (i.e., cracking and strength loss caused by the introduction and diffusion of hydrogen)
High thermal conductivity (205 BTU/ft2/ft./hr./°F) and electrical conductivity (90% according to IACS standards)
Tensile strength of 47,900 psi (approximately 38 to 48 ksi)
Yield strength of 44,200 psi (approximately 30 to 40 ksi)
Elongation between 4% and 12%
Hardness between 65 and 130 HV
Maintains structural integrity up to 350°C
Good formability (suitable for cold and hot forming processes)
Machinability of 85% to 90% (free-cutting brass machinability of 100%)
Suitable for brazing and soldering
Unsuitable for certain welding processes, such as coated metal arc welding, oxyacetylene welding, resistance welding, seam welding, and spot welding
Applications & Industries Served by Tellurium Copper (C145 Copper)
Due to its unique properties - such as its corrosion resistance, machinability, and electrical and thermal conductivity - tellurium copper finds application in a variety of industries, including:
Welding
Plumbing
Electrical
Its advantageous properties also make it uniquely suited to use in a variety of high-performance product applications, such as:
Clamps
Contacts
EDM anodes
Electrical connectors
Electrical switches
Fasteners
Motor and switch parts
Pins
Relay parts
Soldering coppers
Sprinkler heads
Welding tips
Tellurium Copper vs. Copper
Pure copper is soft, whereas tellurium copper delivers a hard alternative with high tensile strength. As discussed, the tellurium content within C145 copper causes clean, short chips. This enables manufacturers to cut the material five times as fast as cutting pure copper. In addition to improving machinability and speed, this also reduces tool wear so tooling will last longer. Added to tellurium copper's high electrical conductivity and hydrogen embrittlement resistance, these factors all make the alloy an optimal material for applications in the electrical industry. As for similarities, C145 copper's ductility as well as its electrical and thermal conductivity are only marginally different than those same properties in pure copper.
about GNEE
why choose our products
Our company is equipped with advanced production lines capable of extruding, drawing, refining, and processing copper rods, copper tubes, copper busbars, and special-shaped copper products. To ensure every single product meets international standards, we have established a comprehensive quality control center. This center is furnished with a range of high-precision testing equipment, including spectrometers, metallurgical microscopes, universal material testing machines, and conductivity testers. This allows us to perform rigorous checks on raw materials, semi-finished, and finished products, covering chemical composition, physical properties, and non-destructive testing.
If you need any help, please contact us immediately:sales@gneesteel.com
Other product forms provided by GNEE
|
Material |
Brass:C21000,C22000,C22600,C23000,C24000,C26000,C26130,C26800,C27000,C27200,C27400, C2800,H59,H62,H70,H65,H80,H90,CuZn30,CuZn37,CuZn35,CuZn40,etcLeaded |
|
Diameter |
1/4",3/8",1/2", 5/8", 7/8" or customized |
|
Thickness |
0.5/0.6/0.7/0.8/1 or Customized |
|
Length |
15m/50ft or customized |
|
Standard |
JIS,AISI,ASTM,GB,DIN,EN |
|
Price Term |
x-Work,FOB,CNF,CFR,CIF,FCA,DDP,DDU,etc |
|
Payment Term |
TT,L/C,Western Union,D/P,etc |
|
Application |
refrigeration,installation of air conditioner,construction water and gas |
|
Package |
Standard export package,suit for all kinds of transport,or as required. |
|
Material |
Copper, Brass, Bronze and special copper alloy |
|
|
Grade |
ASTM |
C10100,C11000,C12200,C21000,C22000,C23000,C24000,C26000, |
|
G/B |
TU1,T2,TP2,H96,H90,H85,H80,H70,H65,H63,H62,H59,HPb63-3, |
|
|
JIS |
C 1011,C 1100,C 1220,C3604,C 2100,C 2200,C 2300,C 2400, C 2600, |
|
|
BS |
Cu-OFE,C 101,Cu-DHP,CZ 125,CZ 101,CZ 102,CZ 103,CZ 106,CZ 107, CZ 108,CZ 109,CZ 123,CZ 124, CZ 121,CZ 111,CZ 133, Pb 104, |
|
|
DIN/ISO |
CuZn5,CuZn10,CuZn15,CuZn20,CuZn30,CuZn35,CuZn33,CuZn36, |
|
|
Shape |
Round, Square, Flat, Hexagon, Oval, Half-round or Customized |
|
|
Dimension |
Bar/Rod |
Standard(Diameter 5-160 mm) or Customized |
|
Wire |
Standard(Diameter 0.02-6 mm) or Customized |
|
|
Plate/Sheet |
Standard(T 0.2-50 mm/W 200-3000 mm/L 6000 mm) or Customized |
|
|
Strip |
Standard(T 0.05-1.5 mm/W 20-600 mm/L 20000 mm) or Customized |
|
|
Tube/Pipe |
Standard(OD 3-360mm/Wall thickness 0.5-50 mm) or Customized |
|
|
Standard |
GB/T,JIS,ASTM, ISO, DIN, BS, NF etc. |
|
|
Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard. |
|
|
Package |
Plastic film + Wooden case or as per customer requirement |
|
|
Surface |
Polished,bright,oiled,hair line,brush,mirror,or as required |
|
|
Deliver time |
According to order's quantity. |
|
|
Shipment |
By sea, by air, DHL, UPS, FedEx etc. or as required |
|
|
Application |
Electric light industry, machinery manufacturing, Building industry ,defense industry, and other fields Manufacturing industrial |
|
|
Standard |
ASTM,DIN,BS,CDA,JIS,GB |
||
|
Material |
T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800, |
||
|
Shape |
Square,Rectangular,etc. |
||
|
Specifications |
Diameter:3~200mm |
||
|
Length |
3m,5.8m, 6m, 11.8m, 12m, or as required. |
||
|
Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc |
||
|
Surface |
mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
||
|
Price term |
EXW, FOB, CFR, CIF, etc. |
||
|
Payment term |
T/T |
||
|
Package |
Export standard package: bundled wooden box, suit for all kinds of transport, |
||
|
Delivery time |
According to order quantity |
||
|
Export to |
Singapore,Indonesia,Ukraine,Korea,Thailand, Vietnam, Saudi Arabia, Brazil, Spain, |
||
|
Application |
Copper plates are mainly used in electrical conductivity, heat conduction, and corrosion-resistant equipment. For instance, they are applied in wires, cables, conductive screws, blasting detonators, evaporators for chemical industries, storage containers, and various pipelines, etc. They can also be used as force-bearing parts for various deep drawing and bending manufacturing processes, such as pins, rivets, washers, nuts, conduits, pressure gauges, screens, and radiator parts, etc. |
||
|
Contact |
If any requirement please feel free to inform me at any time. |
||
|
Grade |
C10100,C10200,C10300,C10400,C10500,C10700,C10800,C10910,C10920, C10930,C11000,C11300,C11400,C11500,C11600,C12000,C12200,C12300, C12500,C14200,C14420,C14500,C14510,C14520,C14530,C17200,C19200, C21000,C23000,C26000,C27000,C27400,C28000,C33000,C33200,C37000, C44300,C44400,C44500,C60800,C63020,C65500,C68700,C70400,C70620, C71000,C71500,C71520,C71640,C72200,T1,T2,T3,etc |
|
Standard |
JIS ASTM DIN EN ISO |
|
Diameter |
0.3-5mm/custom |
|
Length |
custom |
|
Surface |
mill,polished,bright,mirror,hair line,brush,checkered,antique,sand blast,etc |
|
Application |
Building, industry etc |
|
Payment Terms |
T/T or L/C at sight |
|
Delivery time |
5-15 days after receiving L/C or deposit |
|
Remark |
Specific requirement of alloy grade,temper or specification can be discussed at your request |
