All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier
(40 products available)
Industrial steroids for different mating surfaces of metal components have distinct functions and utilize selenium alloys in varied proportion. Some of the prevalent types of selenium alloys are as discussed below:
Copper-selenium alloys
Copper-selenium alloy is a widely used electrical conductive material and hence ideal for components normally exposed to elements and work wear. The selenium amount in the alloy normally improves the resistance to corrosion, particularly in depredating enviroments such as marine settings. Additionally, it grants copper better wear resistance, making it suited for uses in mechanical components like gears, bushings, and bearings where longevity and durability are of prime importance.
Silver-selenium alloys
The silver-se selenium alloy is largely used in electronics, jewelry, and high-end products that need corrosion resistance and superior conductivity. Selenium's addition to silver further increases its resistance to tarnishing, thus maintaining aesthetic and functional properties over a long time. This alloy also has improved mechanical strength, making it ideal for fine, detailed workmanship, as in watches and electronic components.
Lead selenium alloys
Lead-selenium alloys are normally found in industrial applications and do not warrant high electrical conductivity but call for resistance to corrosion and wear. The alloy, which often contains small amounts of selenium, enhances the durability of lead-based materials, making it ideal for battery grids and other components where long service life is essential. Selenium improves resistance to sulfuric acid and other corrosive substances, making it ideal for use in batteries in tough environments.
Nickel selenium alloys
Small amounts of selenium added to nickel improve corrosion resistance and wear resistance, especially in harsh environments. Nickel-selenium alloys also enhance the alloy's overall hardness and strength, making them suited for use in such applications as high-performance mechanical parts and tools that experience many stresses and unfavorable conditions.
Active ingredients in various industrial and commercial applications, copper, silver, nickel, and lead-selenium alloys, usually serve critical roles because of their unique physical and chemical properties. Below are the usages of selenium alloy:
Selenium alloys in batteries
Lead-selenium alloys are conventionally used in lead-acid batteries, particularly in industrial settings where call for durability and resistance to corrosive elements like sulfuric acid exists. The selenium element enhances the lead alloy's endurance and wear, thus prolonging the battery's life and making it suited for tough applications such as forklift trucks and stationary power units.
Electronic components
Copper and silver-selenium alloys are ubiquitous in the electronics industry, owing to their superior electrical conductivity and resistance to corrosion. Copper-se alloys are often used to make connectors, switches, and terminals that need to maintain conductivity amidst exposure to elements. Similarly, silver selenium alloys are ideal for sophisticated electronic components, such as connectors in computing and telecommunications, where durability and aesthetic value are critical.
Machining and mechanical engineering
Nickel-se alloys are employed in mechanical components, such as gears, shafts, and bearings, where high wear and corrosion resistance are essential. The combination improves strength, making the materials suitable for high-performance applications in machines and automotive engineering. Moreover, copper-selenium alloys are used in such mechanical components as bushings and sleeves and normally enhanced wear and tear resistance and toughness.
Marine and aerospace applications
Because of their exceptional resistance to corrosion, nickel and selenium alloys have become industry staples in marine and aerospace applications. Used in parts exposed to seawater or extreme atmospheric conditions, these alloys ensure that components retain their integrity and strength over a long period. Common applications include fasteners, brackets, and valve components in both marine vessels and aircraft.
The composition and mechanical properties of the selenium alloy set it apart from other metals. Information on some specifications related to this alloy follows:
Composition
Usually, the metals in the common selenium alloys have varying amounts of selenium, which are small but effective for improving corrosion and wear resistance. Normally, copper-selenium alloys contain about 0.1% to 0.5% selenium; silver-s selenium alloys have around 0.05% to 0.3% selenium; nickel-selenium alloys may contain from 0.1% to 0.5% selenium; lead-selenium alloys have approximately 0.2% to 1% of selenium. Commonly, the selenium is mixed with other metals through a melting and alloying process that ensures even dispersion.
Mechanical properties
The addition of selenium to metals normally enhances their mechanical properties by improving hardness and wear resistance. Copper-selenium alloys have increased tensile strength, ranging from 200 to 400 MPa, and improved hardness, often measured on the Vickers scale as 80 to 150 HV. Also, silver-selenium alloys have greater strength and elongation values. Typical values for nickel-selenium alloys are 600 to 900 MPa and 1% to 5% elongation. Lead-selenium alloys are also improved by selenium and have greater tensile strength and better wear resistance, making them suitable for industrial applications.
Corrosion resistance
Of the many benefits of adding selenium to metal alloys, corrosion resistance is the most important. Usual Copper-Selenium alloys have exceptional resistance to atmospheric corrosion, as well as to moisture, salt-water, and acids. Therefore, this makes it suitable for marine and industrial applications where exposure to hostile environments is normal. Also, silver-selenium alloys are resistant to tarnishing, which is a factor that contributes to the aesthetic and functional value of jewelry and electronic components. Further, the presence of selenium in lead alloys enhances its resistance to sulfuric acid, increasing lead-acid batteries' durability.
When buying selenium alloys, several key factors have to be considered. Below are some tips to help pick high-quality products:
Purity and composition
For optimal performance, the alloy must be of the right metallic composition. Buyers should ensure they get alloys with specified selenium content and that there are no contaminating minerals. Also, business owners should source alloys from suppliers who can show that they provide products that meet international quality standards like ASTM or ISO standards.
Mechanical properties
The suitable alloy needs to have appropriate strength, hardness, and wear resistance depending on the application. For example, mechanical applications, business owners should seek alloys with improved wear resistance and hardness. On the other hand, if the end use is electronics, they should ensure the alloys selected have good electrical conductivity.
Corrosion resistance
Buyers should ensure that the alloys they select have the right level of corrosion resistance, especially if the products will be used in outdoor or harsh environments. Suitable alloys should be corrosion-resistant, such as nickel selenium or copper selenium alloys. Such alloys withstand exposure to moisture and other corrosive elements.
Supplier reputation
To ensure that the business obtains quality products, it is important to collaborate with suppliers that have a good reputation for quality and quality service. Also, buyers should seek information on other customers' experiences regarding the quality of the alloys and the supplier's support.
Selenium alloys, often with copper, silver, nickel, or lead, are used to create materials with enhanced properties for various industrial applications. When added in small amounts, selenium improves corrosion and wear resistance, as well as the electrical conductivity of these metals. Therefore, copper-se selenium alloys are useful in electronics, batteries, and mechanical components; silver-selenium alloys are used in jewelry and high-end electronics; lead-selenium alloys find application in batteries, particularly in heavy-duty industrial settings; and nickel-selenium alloys suit marine and aerospace components where durability is crucial.
Selenium improves corrosion and wear resistance when added to copper, silver, nickel, or lead, enhancing their durability and making them suitable for various applications. Therefore, this allows copper-selenium alloys to withstand environmental degradation, making them ideal for electronic connectors and switch gears; silver-selenium alloys reduce tarnishing in silver jewelry, maintaining its aesthetic appeal; lead-selenium enhances battery performance in harsh conditions, extending its lifespan; and nickel-selenium alloys support marine and aerospace applications, where strength and resistance to corrosion are critical.
While the low levels of selenium in metallic alloys are generally non-toxic and safe for various uses, including industrial applications, it is true that selenium can be toxic when present in high concentrations. Indeed, selenium exposure may lead to serious adverse health effects, including hair loss, garlic odor breath, and damage to many organs. Nevertheless, the risk of toxicity is minimal when working with properly handled and managed selenium alloys, given that the levels of exposure are kept at a bare minimum and within occupational safety standards.
