{"id":1527,"date":"2025-10-16T16:37:21","date_gmt":"2025-10-16T08:37:21","guid":{"rendered":"https:\/\/www.xunshi-alloy.com\/?post_type=product&p=1527"},"modified":"2025-10-16T16:37:21","modified_gmt":"2025-10-16T08:37:21","slug":"heat-resistant-alloy-w-nr-2-4778-en-10295","status":"publish","type":"product","link":"https:\/\/www.xunshi-alloy.com\/pl\/produkt\/heat-resistant-alloy-w-nr-2-4778-en-10295\/","title":{"rendered":"Stop odporny na wysokie temperatury W.Nr. 2.4778 EN 10295"},"content":{"rendered":"

W.Nr. 2.4778 to stop kobaltowy odporny na wysokie temperatury, charakteryzuj\u0105cy si\u0119 doskona\u0142\u0105 wytrzyma\u0142o\u015bci\u0105 na szok termiczny i wysok\u0105 odporno\u015bci\u0105 na zu\u017cycie. Mo\u017cemy dostarczy\u0107 W.Nr. 2.4778 w postaci pr\u0119t\u00f3w, kutek, rur bezszwowych, tub itp.<\/p>\n

Chemical Composition (%, EN 10295)<\/b><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
C<\/span><\/td>\n0.05-0.25<\/span><\/td>\n<\/tr>\n
Si<\/span><\/td>\n0.50-1.50<\/span><\/td>\n<\/tr>\n
Mn<\/span><\/td>\n1.5<\/span><\/td>\n<\/tr>\n
P<\/span><\/td>\n0.04<\/span><\/td>\n<\/tr>\n
S<\/span><\/td>\n0.03<\/span><\/td>\n<\/tr>\n
Cr<\/span><\/td>\n27-30<\/span><\/td>\n<\/tr>\n
Mo<\/span><\/td>\n0.50<\/span><\/td>\n<\/tr>\n
Ni<\/span><\/td>\n4.0<\/span><\/td>\n<\/tr>\n
Nb<\/span><\/td>\n0.50<\/span><\/td>\n<\/tr>\n
Co<\/span><\/td>\n48-52<\/span><\/td>\n<\/tr>\n
Fe<\/span><\/td>\nR\u00f3wnowaga<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Odporno\u015b\u0107 na zu\u017cycie<\/b>
Je\u015bli chodzi o odporno\u015b\u0107 na zu\u017cycie W.Nr. 2.4778, po 50 miesi\u0105cach u\u017cywania jako pr\u0119ta do spiekania siarczku miedzi nie stwierdzono prawie \u017cadnego pogorszenia. Z drugiej strony, cz\u0119\u015bci z \u017celiwa u\u017cywane do tej pory by\u0142y silnie korodowane, utlenione i zu\u017cyte, pomimo prowadzenia operacji przy temperaturze 900\u00b0C, co ogranicza\u0142o ich przydatno\u015b\u0107 do u\u017cytku jedynie do trzech i p\u00f3\u0142 miesi\u0105ca.<\/p>\n

Spawalno\u015b\u0107<\/b>
W.Nr. 2.4778 mo\u017cna spawa\u0107 metodami \u0142ukow\u0105 lub tlenowo-acetylenow\u0105. Gdy wymagana jest jeszcze wi\u0119ksza odporno\u015b\u0107 na zu\u017cycie, dokonaj dodatkowego spawania za pomoc\u0105 BISHILITE (stop\u00f3w do twardego nawarstwienia). Przy spawaniu W.Nr. 2.4778 ze stal\u0105 nierdzewn\u0105 lub stal\u0105 mo\u017cna stosowa\u0107 drut spawalniczy MA-W.<\/p>\n

Charakterystyka<\/b>
Odporno\u015b\u0107 na wysokie temperatury, odporno\u015b\u0107 na szok termiczny, odporno\u015b\u0107 na zu\u017cycie. Wy\u017csze punkty topnienia ni\u017c u innych stop\u00f3w na bazie kobaltu i nikielu (1380\u20131395 \u00b0C). Odporny na korozj\u0119 w rzadkim kwasie siarkowym i wrz\u0105cym kwasie azotowym, natomiast szybko ulega korozji w kwasie solnym.<\/p>\n

R\u00f3wne marki<\/b>
Thermco50, Co50, Umco50<\/p>\n

Forma dost\u0119pna<\/b>
Pr\u0119ty, wyroby kute, rury bezszwowe, rurki<\/p>","protected":false},"excerpt":{"rendered":"

W.Nr. 2.4778 is a heat-resistant cobalt alloy with excellent thermal shock resistance and wear resistance performance.<\/p>","protected":false},"featured_media":1530,"template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":""},"product_brand":[],"product_cat":[52],"product_tag":[],"class_list":{"0":"post-1527","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\/pl\/wp-json\/wp\/v2\/product\/1527","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xunshi-alloy.com\/pl\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.xunshi-alloy.com\/pl\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xunshi-alloy.com\/pl\/wp-json\/wp\/v2\/media\/1530"}],"wp:attachment":[{"href":"https:\/\/www.xunshi-alloy.com\/pl\/wp-json\/wp\/v2\/media?parent=1527"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.xunshi-alloy.com\/pl\/wp-json\/wp\/v2\/product_brand?post=1527"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.xunshi-alloy.com\/pl\/wp-json\/wp\/v2\/product_cat?post=1527"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.xunshi-alloy.com\/pl\/wp-json\/wp\/v2\/product_tag?post=1527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}