Thermal Shock Resistance Alloy UMCO50 <\/b><\/p>\n
XUNSHI NEW MATERIALS CO LTD supplies UMCO50 in forms of forgings, round bar, tube and so on.<\/p>\n
UMCO50is a heat-resistant cobalt alloy with excellent thermal shock resistance and wear resistance performance. 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.<\/p>\n
UMCO50 is suitable for the environments that require oxidation resistance,high temperature strength and thermal corrosion resistance, thermal impact resistance and wear resistance.<\/p>\n
In a sulfur-containing oxidation atmosphere, it has an excellent thermal corrosion resistance to heavy oil or other fuel combustion medium. It is widely used in coal chemical nozzle.<\/p>\n
For example, the alloy used for skid rails at a steel mill undergoes regular use at 1350\u00b0C. <\/p>\n
Other alloys could not be used due to their low melting point in the application related to heat treatments and furnaces. But W.Nr. 2.4778 shows successful results.<\/p>\n
Chemical Composition (%, EN 10295)<\/b><\/p>\n Graus equivalentes<\/b><\/p>\n Thermco50, W.Nr. 2.4778, Co50,<\/p>\n Shock Resistances<\/b><\/p>\n Since thermal shock resistance was given first priority when developing W.Nr. 2.4778, 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 W.Nr. 2.4778, whereas the 25Cr-12Ni alloys were able to be used for only 8 months in average. XUNSHI has strong strength in production of cobalt alloy. Available grades include Haynes 25(L605), Haynes 188, MP35N, MP159, Waspaloy,<\/p>","protected":false},"excerpt":{"rendered":" UMCO50 is a heat-resistant cobalt alloy with excellent thermal shock resistance and wear resistance performance.<\/p>","protected":false},"featured_media":1596,"template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":""},"product_brand":[],"product_cat":[52],"product_tag":[],"class_list":{"0":"post-1593","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-nickel-cobalt-alloy","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/www.xunshi-alloy.com\/pt\/wp-json\/wp\/v2\/product\/1593","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xunshi-alloy.com\/pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.xunshi-alloy.com\/pt\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xunshi-alloy.com\/pt\/wp-json\/wp\/v2\/media\/1596"}],"wp:attachment":[{"href":"https:\/\/www.xunshi-alloy.com\/pt\/wp-json\/wp\/v2\/media?parent=1593"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.xunshi-alloy.com\/pt\/wp-json\/wp\/v2\/product_brand?post=1593"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.xunshi-alloy.com\/pt\/wp-json\/wp\/v2\/product_cat?post=1593"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.xunshi-alloy.com\/pt\/wp-json\/wp\/v2\/product_tag?post=1593"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n\n
\n C<\/span><\/td>\n Si<\/span><\/td>\n Mn<\/span><\/td>\n P<\/span><\/td>\n S<\/span><\/td>\n Cr<\/span><\/td>\n Mo<\/span><\/td>\n Ni<\/span><\/td>\n Nb<\/span><\/td>\n Co<\/span><\/td>\n Fe<\/span><\/td>\n<\/tr>\n \n 0.05-0.25<\/span><\/td>\n 0.50-1.50<\/span><\/td>\n 1.5<\/span><\/td>\n 0.04<\/span><\/td>\n 0.03<\/span><\/td>\n 27-30<\/span><\/td>\n 0.50<\/span><\/td>\n 4.0<\/span><\/td>\n 0.50<\/span><\/td>\n 48-52<\/span><\/td>\n Equil\u00edbrio<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Resist\u00eancias ao Desgaste<\/b>Quanto \u00e0 resist\u00eancia ao desgaste do W.Nr. 2.4778, quase n\u00e3o foi constatada qualquer deteriora\u00e7\u00e3o ap\u00f3s ser utilizado como barra de sinteriza\u00e7\u00e3o para sulfeto de cobre durante 50 meses. Por outro lado, pe\u00e7as de ferro fundido utilizadas at\u00e9 ent\u00e3o estavam severamente corro\u00eddas, oxidadas e desgastadas, mesmo com opera\u00e7\u00f5es realizadas a 900 \u00b0C, tornando-as utiliz\u00e1veis por apenas tr\u00eas meses e meio.<\/p>\n