{"id":2237,"date":"2021-08-06T06:41:21","date_gmt":"2021-08-06T06:41:21","guid":{"rendered":"https:\/\/wldstainless.com\/?p=2237"},"modified":"2021-08-06T06:41:21","modified_gmt":"2021-08-06T06:41:21","slug":"is-318ln-a-type-duplex-stainless-steel-grades","status":"publish","type":"post","link":"https:\/\/wldstainless.com\/tr\/is-318ln-a-type-duplex-stainless-steel-grades\/","title":{"rendered":"318LN tipi \u00e7ift y\u00f6nl\u00fc paslanmaz \u00e7elik t\u00fcrleri midir?"},"content":{"rendered":"

318LN, 300 serisi paslanmaz \u00e7eli\u011fin korozyon bozukluklar\u0131n\u0131 gidermek i\u00e7in yayg\u0131n olarak kullan\u0131lan azotlu paslanmaz \u00e7eliktir. 318LN paslanmaz \u00e7eli\u011fin yap\u0131s\u0131, s\u00fcrekli ferrit fazlar\u0131 ile \u00e7evrili Austenite\u2019den olu\u015fur. 318LN, tavlanm\u0131\u015f halde yakla\u015f\u0131k 40-50% Ferrit i\u00e7erir ve \u00e7ift katmanl\u0131 paslanmaz \u00e7elik olarak kabul edilebilir. \u00c7ift katmanl\u0131 yap\u0131, ferrit ala\u015f\u0131mlar\u0131 (stres korozyon \u00e7atlamas\u0131na kar\u015f\u0131 dayan\u0131kl\u0131l\u0131k ve y\u00fcksek mukavemet) ile Austenitik ala\u015f\u0131mlar\u0131n \u00fcst\u00fcn \u00f6zelliklerini (\u00fcretim kolayl\u0131\u011f\u0131 ve korozyon direnci) birle\u015ftirir. 318LN, H2S homojen korozyonuna, s\u00fclf\u00fcr stres \u00e7atlamas\u0131na, hidrojen k\u0131r\u0131lganl\u0131\u011f\u0131na ve \u00e7ukurla\u015fmaya ve azalt\u0131c\u0131 ortam korozyonuna kar\u015f\u0131 dayan\u0131kl\u0131d\u0131r. H2S k\u0131smi bas\u0131n\u00e7lar\u0131 1 MPa'dan fazla olan madencilik ortamlar\u0131nda kullan\u0131lmak \u00fczere k\u00fck\u00fcrt dayan\u0131ml\u0131 kuyu ba\u015fl\u0131klar\u0131, valfler, g\u00f6vdeler ve ba\u011flant\u0131 elemanlar\u0131 \u00fcretmek i\u00e7in yayg\u0131n olarak kullan\u0131l\u0131r. Bununla birlikte, 318LN \u00e7iftli paslanmaz \u00e7eli\u011fin kullan\u0131m\u0131 600\u00b0F'den d\u00fc\u015f\u00fck s\u0131cakl\u0131klarda kullan\u0131lmal\u0131d\u0131r, \u00e7\u00fcnk\u00fc uzun s\u00fcreli y\u00fcksek s\u0131cakl\u0131klar 318LN paslanmaz \u00e7eli\u011fi k\u0131r\u0131lmaya sebep olabilir.<\/p>\n

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318LN \u00e7eli\u011fin kimyasal bile\u015fimi<\/h3>\n\n\n\n\n
Cr<\/td>\nNi<\/td>\nMo<\/td>\nC<\/td>\nN<\/td>\nMn<\/td>\nSi<\/td>\nP<\/td>\nS<\/td>\n<\/tr>\n
22.0-23.0<\/td>\n4.50-6.50<\/td>\n3.00-3.50<\/td>\n\u22640.030<\/td>\n0.14-0.20<\/td>\n\u22642.00<\/td>\n\u22641.00<\/td>\n\u22640.030<\/td>\n\u22640.020<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
Makine \u00d6zelli\u011fi<\/td>\n<\/tr>\n
Ys (Mpa)<\/td>\nTs (Mpa)<\/td>\nUzama (%)<\/td>\nHv<\/td>\n<\/tr>\n
Standartlar<\/td>\n\u2265 450<\/td>\n\u2265 620<\/td>\n\u2265 18<\/td>\n<\/tr>\n
Fiziksel \u00f6zellikler<\/td>\n<\/tr>\n
Yo\u011funluk (g\/cm)<\/td>\n\u00d6zg\u00fcl \u0131s\u0131 (J\/g.C)<\/td>\nTermal iletkenlik<\/p>\n

100C (W\/m.)<\/td>\n

Termal genle\u015fme katsay\u0131s\u0131<\/p>\n

20~100C (10\/C)<\/td>\n<\/tr>\n

7.8<\/td>\n0.45<\/td>\n19.0<\/td>\n13.7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

318LN \u00e7eli\u011finin \u00f6zellikleri<\/h3>\n