Why Choose Cobaltalloy

Cobaltalloy is an export-oriented enterprise which also has manufacturing and marketing teams. With a great reputation in China in the Cobalt Alloy Plate industry and have many years experience in manufacturing and marketing, We will be your most reliable high quality supplier.

Why Choose Cobaltalloy for Cobalt Chrome Alloy

Powder metallurgy production Cobalt-chromiun alloy products, one of the three global suppliers.

Our faith is that the quality and customer’s demands are always the first important thing for everyone in our company.

Leaders in PM Cobalt-chromium Alloy

16 years in producing cobalt alloy parts and 10 years exporting experience. Providing professional solutions for wear issues and products.

R&D team

5 engineers with more than 20 years professional knowledge in our R&D team,We guarantee every your idea or drawing request to real products.

Production capacity

SYTOP control the core technology of Cobalt Alloy Valve Seat powder metallurgy, also we have casting and forging plant to meet your various request of Cobalt-chromium Alloy .

Quick & efficient service

More than 90% of our products exported to North America and Europe, quality assurance, quantitative and flexible.

Our company offers variety of products which can meet your multifarious demands. We adhere to the management principles of “quality first, customer first and credit-based” since the establishment of the company and always do our best to satisfy potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with anirresistible force.

Sytop Stellite Alloy Is Popular Material for Hard Vlave Trims

I have heard that stellite alloy 6 materials should not be used for boiler feed water services. This is real?

Stellite Alloy is a very popular material for hard valve trims that require resistance to sliding wear, corrosion and/or cavitation. It has even been successfully used in some corrosive applications. However, in some areas of boiler feedwater applications, it seems that stellite alloy 6 should perform well and encounter problems. Here are some theories and facts about the problem:

1. Stellite alloy 6 is available in cast, forged and welded covers. The foundry material is named UNS R30006; the forged material is named UNS R30016, but is commonly referred to as stellite alloy 6B; the generic AWS name for case hardened materials is CoCr-A (specific name is ECoCr-A for SMAW electrodes) And ERCoCr-A for bare electrodes.

2. Stellite alloy 6 is a cobalt-chromium-tungsten alloy with a carbon content of approximately 1%. The material consists of a soft cobalt-chromium-tungsten solid solution matrix surrounded by a small amount of hard brittle chromium carbide.

3. Although the carbide phase provides high hardness (about 40 HRC), studies have shown that the cobalt-chromium-tungsten matrix is the cause of the excellent wear resistance and cavitation resistance of the alloy. When high stresses, such as in the case of wear or cavitation, stellite alloy 6 undergoes a phase change (ie, a change in crystal structure). Compared to materials that do not have this “shock-absorbing” property, this phase change absorbs some of the energy that can cause damage, actually reducing the overall damage.

4. Like most corrosion-resistant alloys containing chromium as an alloying element, Stellite Alloy 6 achieves corrosion resistance by forming a stable chromium oxide passivation layer. The passive layer protects the underlying material from reacting with the environment. Certain chemicals can weaken the passive layer and reduce its ability to protect the material from corrosion.

Cobalt Chrome Alloy Tube Factory – Cobaltalloy

The professional Cobalt Alloy supplier – cobaltalloy.net is one of the leading supplier for cobalt alloy and stellite alloy in China. We own our technical team and technical support.

We produce the thermocouple protection tube for many years which in made of high temperature metal ceramics and Co/Cr/W Alloy.

Co/Cr/W Alloy Chemical compositions (%)

Brand C Mn Si Cr Ni Mo W Co Fe P S Density




Co 03 2.0-2.7 1.0 1.0 29-33 3.0 11-14 Bal. 3.0 ≤0.03 ≤0.03 8.55 51-55
Co 06 0.9-1.4 1.0 1.5 27-31 3.0 1.5 3.5-5.5 Bal. 3.0 ≤0.03 ≤0.03 8.35 38-44

Thermocouple protection tube for high temperature salt bath furnace , the lifespan will be 1 month when it is used to the liquid of 1280℃.

Its main material composition Mo and Al2O3

Thermocouple protection tube can resist the corrosion of steel liquid , the life span will be 24 hours when it is used to 1450 and 1560 steel liquid.

Its main material composition is ZrO2 and SiO2 .

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

Please contact with us, let us know your demand, or let us know what most popular items in your market. We can give you one complete price lists and marketing plan, to help our both sides to win more business opportunity together

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

Cobalt Alloy Ceramic Teeth Have Many Advantages

Nowadays, many people choose porcelain teeth for dental restoration. Because of the different materials used in porcelain teeth, the types of porcelain teeth are different. So what is Cobalt Alloy porcelain?

The cobalt alloy porcelain tooth is a non-precious metal porcelain tooth. The main components of the nickel-chromium alloy porcelain metal bracket are 77.95% nickel and 12.60% chromium. Since nickel metal has higher activity than other metals, there is free release of metal, free black line of gums, and slight The toxic reaction, cobalt alloy is replaced by a more stable cobalt metal instead of nickel metal, in comparison, the metal properties are more stable, and the adverse stimulation of humans is much reduced. The chance of the black line of the gums is also small.

Characteristics of cobalt-chromium alloy porcelain teeth:

1. Among the cobalt-chromium alloys, cobalt is the main element, which is extremely resistant to corrosion and has high strength and hardness, thereby increasing the service life of the steel support; the corrosion performance of the alloy containing no precious metal is fundamentally different from that of the precious metal alloy.

2. Protect the hard tissues and pulp of the teeth. Stellite Plate porcelain teeth have a good edge sealing effect. Because the teeth that need to be made of porcelain teeth are often discolored and ruined teeth, after the porcelain crown is finished, the whole real tooth is surrounded by the middle, and the force when chewing is applied to the crown without cracking or collapse. The adhesive and porcelain layer of the bonded porcelain crown have good insulation and prevent external damage to the pulp. If the edge is not well sealed, the porcelain crown and the real tooth are not close enough, then the residue in the food will penetrate into it, and the bacteria will also multiply in it, resulting in the result that the “root” is not strong and forced to pull the tooth.

3. The economy is durable, the taste is good, the adaptability is fast, the retention is good, and it is easy to clean.

4. Can be used with a variety of teeth to restore its aesthetics and good occlusion function, so that patients have more choices.