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Thermco50 Cobalt Base Nickel Based Alloys Heat Resistant UMCo-50
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|Equal Grades||Thermco50, W.Nr. 2.4778, Co50, G-CoCr28||Form Of Supply||Forging, Tube,rod,pipe|
|Product Name||Nickel Based Alloys||Certification||ISO9001:2015|
Thermco50 Nickel Cobalt Alloy,
Nickel Based Alloys UMCo-50,
Heat Resistant Nickel Based Alloys
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)
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
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.
Rods, forgings, seamless pipes, tube, etc