{"id":4096,"date":"2026-06-04T01:38:56","date_gmt":"2026-06-04T01:38:56","guid":{"rendered":"https:\/\/beiyutitanium.com\/molybdenum-vs-tungsten-high-temperature\/"},"modified":"2026-09-01T14:25:49","modified_gmt":"2026-09-01T14:25:49","slug":"molybdenum-vs-tungsten-high-temperature","status":"publish","type":"post","link":"https:\/\/beiyutitanium.com\/tr\/molybdenum-vs-tungsten-high-temperature\/","title":{"rendered":"Molibden ve Tungsten: Y\u00fcksek S\u0131cakl\u0131k Metali Se\u00e7imi"},"content":{"rendered":"

Bir par\u00e7an\u0131n \u00e7eli\u011fi ve nikel ala\u015f\u0131mlar\u0131n\u0131 eriten s\u0131cakl\u0131klara dayanmas\u0131 gerekti\u011finde se\u00e7im genellikle iki refrakter metale iner: molibden ve tungsten. Her ikisi de s\u0131radan metallerin yumu\u015fad\u0131\u011f\u0131 ko\u015fullarda dayan\u0131m\u0131n\u0131 korur, ancak birbirlerinin yerine kullan\u0131lamazlar. Do\u011fru se\u00e7im, i\u015fin izin verdi\u011fi s\u0131cakl\u0131\u011fa, a\u011f\u0131rl\u0131\u011fa ve tala\u015fl\u0131 imalat miktar\u0131na ba\u011fl\u0131d\u0131r.<\/p>\n

\"Tungsten
Molibden ve Tungsten: Y\u00fcksek S\u0131cakl\u0131k Metali Se\u00e7imi<\/figcaption><\/figure>\n

Yan yana kar\u015f\u0131la\u015ft\u0131rma<\/h2>\n
\n\n\n\n\n\n\n\n\n\n
\u00d6zellik<\/th>\nMolibden (Mo)<\/th>\nTungsten (W)<\/th>\n<\/tr>\n<\/thead>\n
Erime noktas\u0131<\/td>\n2610 °C<\/td>\n3410 °C (t\u00fcm metallerin en y\u00fckse\u011fi)<\/td>\n<\/tr>\n
Yo\u011funluk<\/td>\n10,22 g\/cm³<\/td>\n19,25 g\/cm³ (~2× Mo)<\/td>\n<\/tr>\n
\u0130\u015flenebilirlik<\/td>\n\u0130yi (tornalan\u0131r, frezelenir, delinir)<\/td>\nZay\u0131f: k\u0131r\u0131lgan; ta\u015flama veya EDM kullan\u0131n<\/td>\n<\/tr>\n
G\u00f6reli maliyet & a\u011f\u0131rl\u0131k<\/td>\nDaha d\u00fc\u015f\u00fck, daha hafif<\/td>\nDaha y\u00fcksek, \u00e7ok daha a\u011f\u0131r<\/td>\n<\/tr>\n
Yayg\u0131n standart<\/td>\nASTM B387 (\u00e7ubuk\/\u00e7ubuk)<\/td>\nTeknik resme g\u00f6re \/ ASTM B777<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Tungsten, en y\u00fcksek ergime noktas\u0131 ve alt\u0131na yak\u0131n yo\u011funlu\u011fuyla u\u00e7 de\u011ferleri ta\u015f\u0131r. Molibden bu \u00fcst s\u0131n\u0131r\u0131n bir k\u0131sm\u0131ndan vazge\u00e7er ancak kullan\u0131m\u0131 \u00e7ok daha kolayd\u0131r: daha hafif, daha d\u00fc\u015f\u00fck maliyetli ve ger\u00e7ekten tala\u015fl\u0131 i\u015flenebilirdir.<\/p>\n

Molibdeni \u015fu durumlarda se\u00e7iniz\u2026<\/h2>\n\n\n\n\n\n\n\n
Molibdenin uygun oldu\u011fu durumlar<\/th>\n<\/tr>\n<\/thead>\n
Par\u00e7ay\u0131 tala\u015fl\u0131 imal etmeniz gerekir. Saf tungsten k\u0131r\u0131lgand\u0131r ve ba\u015fl\u0131ca ta\u015flama ve EDM ile \u015fekillendirilir; molibden (ve TZM) ise dayan\u0131kl\u0131 bir metal gibi tornalanabilir, frezelenebilir ve delinebilir.<\/td>\n<\/tr>\n
Hizmet mutlak u\u00e7 nokta de\u011fil, y\u00fcksek s\u0131cakl\u0131k yap\u0131s\u0131d\u0131r. Vakum f\u0131r\u0131n\u0131 s\u0131cak b\u00f6lgeleri, destekler, ba\u011flant\u0131 elemanlar\u0131, \u0131s\u0131tma elemanlar\u0131 ve elektrotlar klasik molibden alan\u0131d\u0131r.<\/td>\n<\/tr>\n
A\u011f\u0131rl\u0131k ve maliyet \u00f6nemlidir. Tungsten yo\u011funlu\u011funun yakla\u015f\u0131k yar\u0131s\u0131 ve daha d\u00fc\u015f\u00fck maliyetiyle molibden, \u00e7o\u011fu f\u0131r\u0131n donan\u0131m\u0131 i\u00e7in varsay\u0131land\u0131r.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Daha dayan\u0131ml\u0131, s\u00fcr\u00fcnmeye daha diren\u00e7li y\u00fcksek s\u0131cakl\u0131k par\u00e7alar\u0131 i\u00e7in TZM<\/strong> ala\u015f\u0131m\u0131 (Mo-0.5Ti-0.08Zr), saf molibdene g\u00f6re daha y\u00fcksek s\u0131cakl\u0131klara kadar dayan\u0131m\u0131n\u0131 korur. \u0130nceleyiniz molibden \u00e7ubuk<\/a> (saf Mo \/ TZM, ASTM B387).<\/p>\n

Tungsteni \u015fu durumlarda se\u00e7iniz\u2026<\/h2>\n\n\n\n\n\n\n\n
Tungstenin uygun oldu\u011fu durumlar<\/th>\nK\u0131lavuzun belirtti\u011fi durum<\/th>\n<\/tr>\n<\/thead>\n
S\u0131cakl\u0131k en \u00fcst seviyededir<\/td>\nHi\u00e7bir metal tungstenin 3410 \u00b0C erime noktas\u0131n\u0131 a\u015fmaz.<\/td>\n<\/tr>\n
Yo\u011funlu\u011fa ihtiyac\u0131n\u0131z vard\u0131r<\/td>\nRadyasyon z\u0131rhlama, kolimat\u00f6rler, denge a\u011f\u0131rl\u0131klar\u0131 ve kar\u015f\u0131 a\u011f\u0131rl\u0131klar tungstenin 19,25 g\/cm³ yo\u011funlu\u011fundan yararlan\u0131r. Bunlar i\u00e7in, i\u015flenebilir tungsten a\u011f\u0131r ala\u015f\u0131m\u0131<\/em> (W-Ni-Fe) genellikle saf W yerine belirtilir.<\/td>\n<\/tr>\n
Elektrotlar ve kontaklar<\/td>\nTungstenin y\u00fcksek ergime noktas\u0131 ve elektron emisyonu, elektrotlar ve elektrik kontaklar\u0131 i\u00e7in uygundur.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u0130nceleyiniz tungsten \u00e7ubuk<\/a> (pure W to the buyer’s material specification or drawing, heavy alloy to ASTM B777).<\/p>\n

Ortak s\u0131n\u0131rlama: hava<\/h2>\n

Her iki metal de y\u00fcksek s\u0131cakl\u0131kta havada h\u0131zla oksitlenir, molibden ~600 \u00b0C \u00fczerinde, tungsten biraz daha y\u00fcksek s\u0131cakl\u0131kta, ayr\u0131ca molibdenin oksidi u\u00e7ucudur. Bu nedenle her ikisi i\u00e7in de y\u00fcksek s\u0131cakl\u0131k hizmeti vakum, hidrojen veya inert atmosfer<\/strong>, ya da koruyucu kaplama ile. S\u0131cak par\u00e7an\u0131z a\u00e7\u0131k havada \u00e7al\u0131\u015f\u0131yorsa, koruma olmadan bu iki \u00e7\u0131plak refrakter metalden hi\u00e7biri \u00e7\u00f6z\u00fcm de\u011fildir.<\/p>\n\n\n\n\n\n\n
Metal<\/th>\nK\u0131lavuzun belirtti\u011fi durum<\/th>\n<\/tr>\n<\/thead>\n
Molibden<\/td>\nYakla\u015f\u0131k 600 C \u00fczerinde havada h\u0131zla oksitlenir ve oksidi u\u00e7ucudur<\/td>\n<\/tr>\n
Tungsten<\/td>\nBiraz daha y\u00fcksek s\u0131cakl\u0131kta havada h\u0131zla oksitlenir<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

H\u0131zl\u0131 se\u00e7im kural\u0131<\/h2>\n

Tala\u015fl\u0131 i\u015flenebilir, daha hafif ve daha d\u00fc\u015f\u00fck maliyetli y\u00fcksek s\u0131cakl\u0131k par\u00e7alar\u0131 i\u00e7in varsay\u0131lan olarak molibdeni (veya TZM'yi) se\u00e7in. Yaln\u0131zca mutlak ergime noktas\u0131 veya yo\u011funluk gerekti\u011finde ve ta\u015flama\/EDM imalat\u0131n\u0131 kabul edebildi\u011finiz durumlarda tungstene ge\u00e7in (ya da tala\u015fl\u0131 i\u015flenebilir yo\u011funluk par\u00e7alar\u0131 i\u00e7in tungsten a\u011f\u0131r ala\u015f\u0131m\u0131na ge\u00e7in).<\/p>\n

S\u0131k\u00e7a Sorulan Sorular<\/h2>\n
\n
\nSaf molibden yerine TZM kullanmaya de\u011fer mi?<\/summary>\n

Par\u00e7a molibdenin s\u0131cakl\u0131k s\u0131n\u0131r\u0131na yak\u0131n y\u00fckleniyorsa evet; TZM daha y\u00fcksek s\u0131cakl\u0131klarda yeniden kristalle\u015fmeye ve s\u00fcnmeye direnir. Daha d\u00fc\u015f\u00fck s\u0131cakl\u0131kl\u0131 veya basit par\u00e7alar i\u00e7in saf Mo daha s\u00fcnek ve daha ucuzdur.<\/p>\n<\/details>\n

\nSaf tungsten yerine neden tungsten a\u011f\u0131r ala\u015f\u0131m\u0131 kullan\u0131l\u0131r?<\/summary>\n

Saf tungsten k\u0131r\u0131lgan ve tala\u015fl\u0131 i\u015flenmesi zordur. Tungsten a\u011f\u0131r ala\u015f\u0131m\u0131 (s\u00fcnek Ni-Fe\/Ni-Cu matrisinde 90 ila 97% W) yo\u011funlu\u011fun b\u00fcy\u00fck k\u0131sm\u0131n\u0131 korur ancak metal gibi i\u015flenir; kar\u015f\u0131 a\u011f\u0131rl\u0131klar ve z\u0131rhlama i\u00e7in idealdir.<\/p>\n<\/details>\n

\nMolibden veya tungsten hava atmosferli f\u0131r\u0131nlarda kullan\u0131labilir mi?<\/summary>\n

\u00c7\u0131plak olarak de\u011fil; her ikisi de oksitlenir. Vakumda veya inert\/indirgen atmosferlerde kullan\u0131n ya da oksidasyona kar\u015f\u0131 koruyucu bir kaplama belirtin.<\/p>\n<\/details>\n

\nHer ikisini de sertifikal\u0131 olarak tedarik ediyor musunuz?<\/summary>\n

Yes, on request. Molybdenum bar and rod are certified to ASTM B387; tungsten is certified to the route ordered: the buyer’s drawing for pure W bar and rod, ASTM B777 for heavy alloy, ASTM B760 for plate, sheet and foil. Talep g\u00f6nderiniz<\/a> kalite, boyut ve durum bilgileriyle.<\/p>\n<\/details>\n<\/div>\n

\n

Metal se\u00e7ildikten sonra sipari\u015fte belirtilmesi gerekenler<\/h2>\n

Molibden ve tungsten, genellikle tek bir teknik resme g\u00f6re, pahal\u0131 malzemeden k\u00fc\u00e7\u00fck miktarlarda sat\u0131n al\u0131n\u0131r. Se\u00e7im tart\u0131\u015fmas\u0131 metali netle\u015ftirir, ancak kabul\u00fc belirleyen t\u00fcm alanlar\u0131 a\u00e7\u0131k b\u0131rak\u0131r; refrakter malzeme talepleri ayn\u0131 d\u00f6rt noktada duraksar.<\/p>\n\n\n\n\n\n\n\n\n\n\n
Sipari\u015f alan\u0131<\/th>\nBelirledi\u011fi husus<\/th>\nA\u00e7\u0131k b\u0131rak\u0131lmas\u0131n\u0131n sonucu<\/th>\n<\/tr>\n<\/thead>\n
UNS numaras\u0131yla birlikte metal veya ala\u015f\u0131m<\/td>\nHangi bile\u015fim tablosunun ge\u00e7erli oldu\u011fu; \u00e7\u00fcnk\u00fc her iki metal de ala\u015f\u0131ms\u0131z ve ala\u015f\u0131ml\u0131 olarak tedarik edilir<\/td>\nAla\u015f\u0131ms\u0131z malzeme beklentisine kar\u015f\u0131 ala\u015f\u0131ml\u0131 bir kalite teklif edilir<\/td>\n<\/tr>\n
Esas al\u0131nan \u015fartname<\/td>\nSat\u0131n al\u0131nan form i\u00e7in kabul esas\u0131 ve sertifika ifadesi<\/td>\nSertifika, al\u0131c\u0131n\u0131n kontrol etmedi\u011fi bir tabloya g\u00f6re raporlama yapar<\/td>\n<\/tr>\n
\u00dcretim rotas\u0131<\/td>\nPar\u00e7an\u0131n sinterlenip \u015fekillendirilmi\u015f mi yoksa ba\u015fka bir y\u00f6ntemle mi \u00fcretildi\u011fi; bu, teslim edilen \u00f6zelliklere yans\u0131r<\/td>\n\u0130ki tedarik\u00e7i iki farkl\u0131 \u00fcr\u00fcn\u00fc iki farkl\u0131 fiyatla teklif eder<\/td>\n<\/tr>\n
Boyut ve tolerans ile birlikte \u00fcr\u00fcn formu<\/td>\nBoyut aral\u0131\u011f\u0131yla birlikte de\u011ferlendirilen \u00e7ubuk, \u00e7ubuk, sac veya tel gereklilikleri<\/td>\nBir teknik resim s\u0131n\u0131f\u0131, de\u011ferlendirilece\u011fi bant olmadan gelir<\/td>\n<\/tr>\n
Teslim ve y\u00fczey durumu<\/td>\n\u0130ki ayr\u0131 alan; \u00e7\u00fcnk\u00fc ta\u015flanm\u0131\u015f y\u00fczey bir teslim durumu de\u011fildir<\/td>\nY\u00fczey finisaj\u0131 tedarik\u00e7inin varsay\u0131lan uygulamas\u0131na g\u00f6re belirlenir<\/td>\n<\/tr>\n
Gerekli raporlar<\/td>\nSertifikadaki raporlama kapsam\u0131<\/td>\nUygun bir belge, giri\u015f muayenesinin bekledi\u011finden daha az soruyu yan\u0131tlar<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Bu durum refrakter metallere \u00f6zg\u00fc de\u011fildir. \u00c7ubuk ve k\u00fct\u00fck \u015fartnamesi ASTM B348; y\u00fczey durumu, markalama, ambalajlama, gerekli raporlar ve reddedilen malzemeye yap\u0131lacak i\u015flemi titanyum sipari\u015finde bulunmas\u0131 beklenen kalemler aras\u0131nda sayar (ASTM B348, sipari\u015f bilgileri). Ayn\u0131 alanlar molibden veya tungsten talebinde de ayn\u0131 nedenle yan\u0131ts\u0131z kal\u0131r: bunlar metale de\u011fil, sipari\u015fe aittir.<\/p>\n

<\/p>\n

Kaynaklar\u0131yla \u015fartname ayr\u0131nt\u0131lar\u0131<\/h2>\n

ASM melting-point data frame the refractory choice: molybdenum melts at 2610 degrees C and tungsten at 3410 degrees C; the densities this site uses for them are 10.22 and 19.25 g\/cm3, and the ASTM titles split by product as well as by metal: B387 is titled for molybdenum bar, rod and wire, B760 for tungsten plate, sheet and foil, B777 for tungsten-base high-density metal, and pure tungsten bar and rod go to the buyer’s material specification. The oxidation limit is part of the same published record, with molybdenum’s oxide volatilising in air from roughly 600 degrees C, which is why both metals are vacuum or protective-atmosphere materials rather than open-air ones.<\/p>\n\n\n\n\n\n
Ergime noktalar\u0131 burada kas\u0131tl\u0131 olarak tablolanmam\u0131\u015ft\u0131r: dola\u015f\u0131mdaki de\u011ferler kaynaklar aras\u0131nda farkl\u0131l\u0131k g\u00f6sterir; bu nedenle sipari\u015f edilen malzemenin veri sayfas\u0131ndan al\u0131nmal\u0131d\u0131r.<\/caption>\n
\u00d6zellik<\/th>\nMolibden<\/th>\nTungsten<\/th>\n<\/tr>\n<\/thead>\n
Yo\u011funluk<\/td>\n10,22 g\/cm3<\/td>\n19,25 g\/cm3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Beiyu Titanium’s mill production is titanium and nickel alloy, and Beiyu’s first-party numbers here mark where that range ends: for elevated-temperature titanium duty Beiyu supplies Ti-6242 and Ti-6246 alloy bar from 1 to 500 mm diameter. Above titanium’s ceiling but below the refractory threshold, Beiyu supplies Inconel 600 and 601 tube to ASTM B167<\/a>, seamless from 5 to 325 mm OD in 0.5 to 12 mm walls and lengths to 12000 mm, and in Beiyu’s export practice the first selection question is atmosphere, because a part running hot in open air points to a nickel alloy long before it points to a bare refractory metal.<\/p>\n

<\/p>\n

Teknik teklif talebi g\u00f6nderiniz<\/h2>\n

Molibden veya tungsten teklif taleplerinde malzeme formunu, kaliteyi veya safl\u0131\u011f\u0131, boyutlar\u0131, tolerans\u0131, y\u00fczey durumunu, miktar\u0131 ve \u00e7al\u0131\u015fma s\u0131cakl\u0131\u011f\u0131 aral\u0131\u011f\u0131n\u0131 belirtiniz.<\/p>\n

Teklif talebi ayr\u0131nt\u0131lar\u0131n\u0131 g\u00f6nderiniz<\/a><\/p>\n<\/div>\n

\n

\u0130lgili titanyum rehberleri<\/h2>\n