Application of Cobalt in Cobalt Alloy

With superior physical and chemical properties, cobalt has been widely used in industrial sectors, especially in key parts of aerospace, aviation and nuclear energy, which cannot be replaced by other materials.

1.High-temperature alloy

As a material resistant to high temperature and erosion, cobalt-based alloys are widely used in the combustion turbine blade, impeller, pipe, steam injection engine, rocket engine, missile components and various load heat-resistant components in chemical equipment, as well as various long-life components in the nuclear industry.

2. Wear resistant alloy

Used in the sealing surface of the valve, the stellite alloy often is a kind of typical wear-resistant alloy. It has excellent performance in terms of wear resistance, high-temperature resistance, and corrosion resistance. It cannot be replaced by any materials in some industries. Cobalt is also used as a binder material in powder metallurgy processes. For example, WC alloys, in addition to being used as a binder, can also improve the toughness of the alloy and increase the strength of the alloy. It is the main material for making cutting tools.

3. Magnetic alloy

Cobalt is an important material for permanent magnet alloys. Some alternatives have been developed such as rare earth, neodymium iron boron, etc. which are widely used in high-tech fields such as motors, instrumentation, automobiles, motorcycles, automatic control, electric-acoustic, military and aerospace, and aviation.

4. Expansion coefficient alloy

Cobalt Alloy with 17% Co, 53% Fe, 29% Ni and 0.5% Mn have the same thermal expansion coefficient as glass and can be welded into the glass, and do not react with mercury vapor, so cobalt can be used in electrical, radio and lighting, etc.

5. Chemical Industry

In addition to high-temperature alloys and anti-corrosion alloys, it is also used in a large number of chemical products such as colored glass, dyes, enamel, and desiccant.

Sytop Cobalt Chrome Alloy manufacturer looks forward to growing together with all customers for a mutual benefit and a better tomorrow! If you are interested in us, please feel free to contact us at any time. In the meantime, you can click the link: www.cobaltalloy.net to get further information.

Cobalt Chrome Alloy Another Name Is Stellite Alloy

Shenyang Top New Material Co.,Ltd is the leader cobalt chrome alloy manufacturer, Cobalt Chrome Alloy is one kind of wear ,galling and corrosion resistance alloy, its remain there properties at high temperature , another name is stellite alloy , but stellite is a registered trade name of Deloro stellite , so mostly we use cobalt chromium alloy to name it . cobalt chromium alloys consist of complex carbide in an alloy matrix .

WE has 20 years research and production experience in cobalt chromium. The widely used grades are stellite 6 , stellite 3 , stellite 12, also some customers need stellite 4, stellite 20 and so on . all of these grades are available and we have ability to achieve customer’s idea to design and real products .

For example , Grade 6 is the most widely used of the wear resistance Cobalt Chromium Alloy and exhibits good performance , it is famous with its super wear resistance over a wide temperature range and retains a reasonable level of hardness up to 500℃。 It also has good resistance to impact and cavitation erosion .

We has two more ways to support you , powder metallurgy , casting , hard facing and forging .

Cobaltalloy is one of the leading Cobalt Alloy supplier offered at an unbeaten price. We can produce both standard and special prosucts. We can make them according to your drawings and samples. We are proud to support our customers to get more values, to create new business. We look forward to fulfilling all your future needs.

Some Information of Sytop Stellite Alloy Blade

Sytop Stellite Alloy Company is devoted to be the dominating cobalt alloy exporter. We have professional technical department who are paying the key role on pre-sales and after-sales services. We provide the most up-to-the minute technology total solution for different stellite alloy process and requirements.

What is the Details of our Stellite Alloy Blade?

Material : Stellite –6B
Process : Powder Metallurgy , it is short for PM
Hardness: 33-43 HRC
Density : 8.3 g/cm ³
Size : 100-220mm length , width 30-60mm , thickness 1.15-7 mm
Properties : Wear and corrosion resistance, high temperature resistance
Application : Cutting material
Instructions : Drawing made upon cutomers request
Sharpening surface : available
Tolerance control : grinding surface , tolerance upon drawing
Production lead time Samples 10 days , normal order 15-25 days
Production capacity : 30,000pcs one month.
Package : carton or wooden case , pallet for export

So if any of you have any questions need solution welcome to contact us, we are glad to cooperation with you!

The Origin and Development of Stelltei Alloy 3

The Stellite Alloy are hard alloys which can resist various wear, corrosion and oxidation at high temperature. The alloys are applied to wearing surfaces by various surface strengthening process, or alternatively as casting parts. In this article, I will introduce the origin and development of stellite alloys.

Stellite alloy was invented by an American Elwood Haynes in 1900. The alloy, which is mainly composed of cobalt and chromium, is silver-white after cooling, and it flashes like a star. In Latin, the star called Stella, so it is named Stellite. Later, Haynes used Stellite as a trademark.

In 1922, Stellite was used for hard-faced coatings to solve the special needs of internal combustion engines and jet engines following by. Stellite alloys have made an important contribution to the development of aviation, automotive and high-temperature chemical industries. At present, stellite is consumed about 1,500 tons of per year in the world, one-third of which is used for surfacing welding of internal combustion engine steam valves and others.

Initially, the Stellite Alloy 12 consists of the cobalt and chromium, and later which developed into a ternary composition of cobalt-chromium-tungsten. Others like carbon, silicon, nickel, etc., were originally considered as impurity elements contained in the alloy. Nowadays, the elements are strictly controlled. The Composition of alloys such as Stellite 1, 6, and 21 is the same as that determined by Haynes.

With continuous research and development, there are more than 30 types of stellite alloy so far. In addition to castings, Stellite is limited to small parts such as small molds, blades, nozzles, seal rings, etc., while large parts are used for coating to save cost. Therefore, stellite alloy is also made cast welding rod, welding rod, tubular welding wire, spray welding alloy powder, etc.

Our Stellite Alloy 3 products are of high quality and reasonable price. We look forward to establishing business relationship with us. You can go to our site cobaltalloy.net for further information. Whatever you need, please feel free to let us know.

Development of Cobalt Chrome Alloy Welding Wire

Development of Non-Ferrous Metal Material Cobalt Chrome Alloy Welding Wire.

Cobalt Alloy wire is an alloy made of metal cobalt. Cobalt alloy is a general name for one or several alloys of cobalt and chromium, tungsten, iron and nickel. Tool steel containing a certain amount of cobalt can be remarkable. Improve the wear resistance and cutting performance of steel.

Cobalt alloy wire is an alloy made of metal cobalt. Cobalt alloy is a general name for one or several alloys of cobalt and chromium, tungsten, iron and nickel. Tool steel containing a certain amount of cobalt can be remarkable. Improve the wear resistance and cutting performance of steel.

Cobalt Alloy Bar is one of high-temperature alloys. It is based on cobalt and contains a considerable amount of nickel, chromium, tungsten and a small amount of alloying elements such as molybdenum, niobium, tantalum, titanium and niobium. Occasionally, it also contains iron. Alloys. Depending on the composition of the alloy, they can be made into welding wire. The powder can be used for hard surface surfacing, thermal spraying, spray welding, etc., and can also be used for casting and forging parts and powder metallurgy parts.

With the advancement of science and technology and the development of the national economy, new requirements for non-ferrous metal materials in terms of quantity, variety, quality and cost are constantly put forward; not only structural materials and functional materials that provide better performance are required; but also their chemical composition The requirements for physical properties, organizational structure, crystal state, processing state, surface and dimensional accuracy, and product reliability and stability are also increasing.

In general, the production of non-ferrous metal materials is developing in the direction of large-scale, continuous, automated, and standardized, which requires high-precision, high-reliability processes, equipment, control technology, and finished product inspection technology.

What Properties Should Protective Stellite Alloy Tube Have

Stellite Alloy is a family of completely non-magnetic and corrosion-resistant cobalt alloys of various compositions that have been optimised for different uses. The alloy currently most suited for cutting tools, for example, is Stellite 100, because this alloy is quite hard, maintains a good cutting edge even at high temperature, and resists hardening and annealing. Other alloys are formulated to maximize combinations of wear resistance, corrosion resistance, or ability to withstand extreme temperatures.

Stellite Alloy Tube become popular products of sytop

Product Features of Stellite 3

1. High temperature resistance
The strength keeps stable up to 800℃ and it can even momentarily used at 1500℃.

2. Wear resistance
Due mainly to the unique inherent characteristics of the hard carbide phase dispersed in a Stellite 12 matrix, it has exceptional wear and galling resistance.

3. Corrosion resistance
This exellent and lovely property allows this kind of material parts to be used in oil&gas, slurry, acid liquid and any other mediums.

1.What properties should protective stellite alloy tube have ?

(1).Thermal shock resistance

(2).Vibration resistance

(3).Large measurement range

(4).good pressure performance

(5).High mechanical strength

Sytop In the spirit of «Lasting Quality, Persistent Innovation, Credit Supreme», Shenyang Top New Material Co.,Ltd provides service for all friends forever.

Stelltie Alloy Blade Supplier – Sytop COBALTALLOY (Service)

Cobaltalloy is one of the leading Stellite Alloy supplier offered at an unbeaten price. We can produce both standard and special prosucts. We can make them according to your drawings and samples. We are proud to support our customers to get more values, to create new business. We look forward to fulfilling all your future Stellite Alloy needs.

Service of Stellite Alloy Blade Supplier – Sytop COBALTALLOY

1.Research and development(R &D): We have a mature technical team that can assist customers to develop new products and grow together;

2.Design: We can provide free design according to the samples or drawings provided by customers;

3.Customer service: We can provide complete customer service support, including logistics, technical services, equipment commissioning etc;

4.Processing: We can provide OEM manufacturing services according to customer’s demand.

Note: The price is determined by the design drawings and mould size (diameter and thickness), please provide the drawings or sample data to us, we will give you a quote ASAP(within 8 hours).

We are proud to support our customers to get more values, to create new business. We look forward to fulfilling all your future Stellite Alloy 3 needs. You may have many options, so we appreciate your loyalty and business. Thank you, for choosing Sytop.

Characteristics of Sytop Cobalt Chrome Alloy for Welding Rods

Cobalt Chrome Alloy electrode base material casting cobalt-based superalloy is largely dependent on carbide strengthening. Pure cobalt crystals are densely packed hexagonal (hcp) crystal structures below 417 ° C and converted to fcc at higher temperatures.

In order to avoid this transformation of the cobalt alloy during use, virtually all of the cobalt alloy is alloyed with nickel to stabilize the structure from room temperature to melting point temperature. Cobalt alloy has a flat fracture stress-temperature relationship, but it exhibits excellent hot corrosion resistance at temperatures above 1000 °C, which may be due to the higher chromium content of the alloy, which is one of these alloys. feature.

In cast Cobalt Alloy Plate , the carbide particle size is related to the cooling rate, and the carbide particles are relatively fine when cooled. In the sand casting, the hardness of the alloy is lower and the carbide particles are coarser. In this state, the abrasive wear resistance of the alloy is significantly better than that of the graphite casting (the carbide particles are fine), and the adhesive wear resistance is both There is no significant difference, indicating that coarse carbides contribute to improved abrasive wear resistance.

The main carbides in cobalt alloys are MC, M23C6 and M6C. In cast Cobalt Alloy , M23C6 precipitates between grain boundaries and dendrites when slowly cooled. In some alloys, fine M23C6 can form a co-crystal with the matrix γ. The MC carbide particles are too large to directly affect the dislocations, so the strengthening effect on the alloy is not obvious, and the finely dispersed carbides have a good strengthening effect. The carbides located on the grain boundaries (mainly M23C6) can prevent the grain boundary from slipping and improve the permanent strength. The microstructure of the cobalt alloy HA-31 (X-40) is a dispersed strengthening phase (CoCrW) 6 C type. carbide.

The Strengthening Phase of Cobalt Chrome Alloy Wire

Cobalt Alloy wire is made of cobalt as a main component, containing a considerable amount of nickel, chromium, tungsten and a small amount of alloying elements such as molybdenum, niobium, tantalum, titanium, niobium, and occasionally iron. Depending on the composition of the alloy, they can be made into welding wire. The powder can be used for hard surface surfacing, thermal spraying, spray welding, etc., and can also be used for casting and forging parts and powder metallurgy parts.

Generally, Cobalt Alloy Plate lack a coherent strengthening phase. Although the medium temperature strength is low (only 50-75% of nickel-based alloys), it has higher strength, good thermal fatigue resistance, hot corrosion resistance and resistance at temperatures above 980 °C. Abrasive performance and good weldability. Suitable for the production of air jet engines, industrial gas turbines, guide vanes and nozzle guide vanes for marine gas turbines, and diesel engine nozzles.

Dispersion strengthening is a means of strengthening a material by adding hard particles to a homogeneous material. It refers to a metal material reinforced with an ultrafine second phase (reinforced phase) insoluble in a base metal. In order to distribute the second phase uniformly in the base metal, it is usually produced by a powder metallurgy method. The second phase is generally a high melting point oxide or carbide, nitride, and its strengthening can be maintained to a higher temperature.

Dispersion strengthening is a method of strengthening the alloy with a large effect, and it has a promising future. If the compound is dispersed or grainy in the solid solution grains, the strength and hardness of the alloy can be significantly improved, and the plasticity and toughness can be reduced little. The finer the particles, the more dispersed and evenly distributed, and the better the strengthening effect.

The HS111 Cobalt Chrome Alloy surfacing welding wire is a kind of Co-Cr-W surfacing alloy with low C and W content and good toughness. It can withstand the impact under hot and cold conditions, has a low tendency to crack, and has good corrosion resistance, heat resistance and wear resistance. It is mainly used to maintain good wear resistance and corrosion resistance when working at high temperatures, such as high temperature, high pressure valves, hot shear blades, hot forging dies, etc.

3 Points to Purchase Cobalt Chrome Alloy Welding Wire

Cobalt Alloy welding wire, HS101 high chromium cast iron surfacing wire surfacing layer hardness HEC48-54 Main features and uses; Surfacing layer has good oxidation and cavitation resistance, high hardness and good wear resistance. Used in applications requiring strong wear and oxidation resistance, such as roller shaft bit shaft, coal hole excavator, crusher roller, mixing blade and other surfacing. HS103 high chromium cast iron surfacing wire (including boron). The surfacing layer has excellent anti-oxidation and cavitation resistance, and the hardness is high. The wear resistance is good. HS103 is a high-chromium cast iron welding wire containing boron. The surfacing layer is hard to cut and wear with hard alloy tools stronger.

When purchasing Cobalt Alloy Blade wire, consider the physical properties, mechanical properties and chemical composition of the weldment material:

  1. For the welding of structural steels, generally consider the principle of equal strength and select the welding consumables that meet the mechanical properties of the joints.
  2. For dissimilar steel welded joints between low carbon steel and low alloy steel, the corresponding welding materials for steels with lower strength grades are generally selected.
  3. For the welding of heat-resistant steel and stainless steel, in addition to considering the strength, it is also considered that the main chemical composition of the weld metal is close to the chemical composition of the base metal.

When the chemical constituents of the base metal are high in harmful impurities such as carbon or sulfur or phosphorus, the welding material with strong crack resistance should be selected. Such as low hydrogen type welding consumables.

In China, the most important grades for Stellite Alloy are: Hayness 188, Haynes 25 (L-605), Alloy S-816, UMCo-50, MP-159, FSX-414, X-40, Stellite 6B. Etc., Chinese brands are: GH5188 (GH188), GH159, GH605, K640, DZ40M and so on. Unlike other superalloys, the cobalt alloy is not reinforced by an ordered precipitate phase that is firmly bonded to the matrix, but consists of an austenitic fcc matrix that has been solid solution strengthened and a small amount of carbide distributed in the matrix.