Alloy 145 Tellurium Copper (C14500)

Tellurium copper—also referred to as Alloy 145, Alloy C14500, 145 half-hard tellurium, and TeCu—is a copper-based alloy that contains varying amounts of tellurium and phosphorus. The tellurium content typically ranges between 0.4–0.7%, while the phosphorus content ranges between 0.004–0.12%.

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

Some of the mechanical, chemical, electrical, and manufacturing properties characteristic of tellurium copper include:

• Resistance to atmospheric corrosion
• High thermal (205 BTU/ft2/ft/hr/°F) and electrical conductivity (90% as per IACS)
• Resistance to hydrogen embrittlement (i.e., fracturing and weakening caused by the introduction and diffusion of hydrogen)
• Tensile strength of 47,900 psi (approximately 38 to 48 ksi)
• Yield strength of 44,200 psi (approximately 30 to 40 ksi)
• Elongation capabilities ranging between 4–12%
• Hardness between 65–130 HV
• Structural integrity up to 350° Celsius
• Good formability (for cold and hot forming processes)
• Machinability rating of 85–90% (where free cutting brass is 100)
• Suitability for soldering and brazing
• Unsuitability for specific welding processes, such as coated metal arc welding, oxy-acetylene welding, resistance welding, seam welding, or spot welding we typically offer tellurium copper in flat bar, round bar forms or precision saw cut. However, the raw material is also available in hollow rod, hexagonal rod, tube, and wire forms.

Applications and Industries Served by Tellurium 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

Sequoia Brass & Copper’s Tellurium Copper Offerings

Tellurium copper’s unique properties make it an excellent source material for many industrial applications, including the welding, plumbing, and electrical industries.

Material Grade

Product Specification

Chemical Composition

We wrap the stainless steel products with anti-rust paper and steel rings to prevent damage.

 Identification labels are tagged accordingto standard specification or customer’s instructions. 

Special packing is available as per customer’s requirement.

Stainless Steel Coil Package

Stainless Steel Sheet / Stainless Steel Plate Package

Stainless Steel Strip Package

Shipment Package

Our company is based in Wuxi,  gathering city of industrial stainless steel in China.

We specialized in stainless coils, sheets and plate, stainless steel pipe and fittings, stainless steel tubes, and also aluminum products and copper products.

Our products have been highly praised by our clients from Europe, America, the Middle East, African and Southeast Asia. We will offer competitive products and comprehensive service to customers. 

Stainless Steel Grade: 201, 202, 202cu, 204, 204cu, 303, 304, 304L, 308, 308L, 309, 309s, 310, 310s, 316, 316L, 321, 347, 410, 416, 420, 430, 430F, 440, 440c,

Alloy Grade :Monel, Inconel, Hastolley, Duplex, Super Duplex, Titanium, Tantalum, High Speed Steel, Mild Steel, Aluminium, Alloy Steel, Carbon Steel, Special Nickel Alloys

In form of : Round Bars, Square Bars, Hexagonal Bars, Flat Bars, Angles, Channels, Profiles, Wires, Wire Rods, Sheets, Plates, Seamless Pipes, ERW Pipes, Flanges, Fittings,etc.

Q1: What is stainless?

A: Stainless means no marks on the steel surface, or a kind of steel that is not damaged by air or water and that does not change color, spotless, resistant to staining, rusting, the corrosive effect of chemicals.

Q2: Does stainless mean no rusting?

A: No, stainless means not easy to get stained or rusty, it has speical ability to reisist staining, rusting and corrosion.

Q3: Do you supply stainless steel sheets?

A: Yes, we supply different types of stainless steel sheets, with thickness ranges from 0.3-3.0mm. and in different finishes.

Q4: Do you accept cut to length service?

A: Of course, customer’s satisfaction is our top priority.

Q5: If i have a small order, do you accept small order?

A: Not a problem, your concern is our concern, small quantities are accepted.

Q6: How can you guarantee your product quality?

A: First, from the very start, we have already implemented a spirit to their mind, that is quality is life, our professional workers and staffs will follow up every step till the goods packed well and shipped out.

Q7: Will you pack the products?

A: Professional people do professional packing, we have different types of packing optional to customers, economic one or better one.

Q8: What do you need to know from customer before accurate quotation?

A: For an accurate quotation, we need to know grade, thickness, size, surface finish, color and quantity of your order, and also the destination of the goods. Customized product information will be needed more, like drawing, layout and plan. Then we will offer competitive quotation with the above information.

Q9: What kind of payment term you accpet?

A: We accept T/T, West union, L/C.

Q10: If this is a small order, will you delivery the goods to our agent?

A: Yes, we are born to solve problems of our customers, we will get the goods safely to your agent’s warehouse and send you the pictures.

Q11: Do you just make flat sheet? I want to make a fabrication for my new project.

A:  No, we mainly produce stainless steel flat sheet surface treatment, at the same time, we manufacture customized metal finished product as per customer’s drawing and plan, our technician will take care of the rest.

Q12: How many coutries you already exported ?
A: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Iran,
      Turkey, Jordan, etc.
Q13: How can I get some samples?
A: Small samples in store and can provide the samples for free. Catalgue is available, most
      patterns we have ready samples in stock. Customized samples will take about 5-7days.
Q14: What is the delivery ?
A: Sample order’s delivery time is 5- 7 days. Container orders are about 15-20 days.

Q15: What is the application about your Products?
A:  1.elevator door/cabin or and escalator’s side-wall.
      2.Wall cladding inside or outside meeting room/ restaurant.
      3.Facade when cladding over something, like columns in the lobby.
      4.Ceiling in the supermarket. 5.Decorative draws in some entertainment places.
Q16: How long Can You Guarantee for This Product/Finish?
A: Color guarantee for more than 10 years. Original materials quality certificate can
       be provided.