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Thermco50 Cobalt Base Nickel Based Alloys Heat Resistant UMCo-50

Place of Origin China
Brand Name XUNSHI
Certification ISO9001:2015
Model Number UMCo-50
Minimum Order Quantity 100kg
Price Negotiable
Packaging Details Plywood case
Delivery Time 30-35 days
Payment Terms T/T
Supply Ability 3000kg per month
Product Details
Equal Grades Thermco50, W.Nr. 2.4778, Co50, G-CoCr28 Form Of Supply Forging, Tube,rod,pipe
Grade UMCo-50 Chemical Composition 50Co-30Cr-20Fe
Product Name Nickel Based Alloys Certification ISO9001:2015
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Thermco50 Nickel Cobalt Alloy


Nickel Based Alloys UMCo-50


Heat Resistant Nickel Based Alloys

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Product Description

Thermco50 Cobalt-Base Heat Resistant Alloy UMCo-50



UMCo-50 is a cobalt-chromium-iron heat-resistant alloy with good resistance to thermal shock, oxidatoin, and corrosion,  It has great strength against sulfur-and vanadium-attacks. UmCo-50 has higher melting point compared to other cobalt based or nickel based heat-resistant alloys.


For example, the alloy used for skid rails at a steel mill undergoes regular use at 1350°C,so other alloys could not be used due to their low melting point in the application related to heat treatments and furnaces. But UMCo-50 shows successful results.



Chemical Composition (%, EN 10295)

C Si Mn P S Cr Mo Ni Nb Co Fe
0.05-0.25 0.50-1.50 1.5 0.04 0.03 27-30 0.50 4.0 0.50 48-52 Balance


Equal grades

Thermco50, W.Nr. 2.4778, Co50, G-CoCr28



High Temperature Resistance, Thermal Shock Resistance , Wear Resistance

Higher melting points than other cobalt based and nickel based alloys (1380 -1395 °C)

Corrosion resistant in Sparse sulfuric acid and boiling nitric acid and corrosion rapidly in hydrochloric acid


Shock Resistances

Since thermal shock resistance was given first priority when developing UMCo-50, this alloy shows far more outstanding thermal shock resistance than the popularly used 25Cr-20Ni stainless steel. For example, even after repeating the heating and cooling cycle (1000-water cooling-7 seconds) for 500 times, no cracking occurred. As a practical example, the alloy was used for four and a half years as a tray which was heated up to 1000 in a heavy oil furnace to quench various quenching agents. Hardly any cracking occurred in UMCo-50, whereas the 25Cr-12Ni alloys were able to be used for only 8 months in average.


Available forms

Rods, forgings, seamless pipes, tube, etc

Thermco50 Cobalt Base Nickel Based Alloys Heat Resistant UMCo-50 0Thermco50 Cobalt Base Nickel Based Alloys Heat Resistant UMCo-50 1Thermco50 Cobalt Base Nickel Based Alloys Heat Resistant UMCo-50 2Thermco50 Cobalt Base Nickel Based Alloys Heat Resistant UMCo-50 3