Seamless alloy steel yeeb nkab TshuagASTM A335 P91, cov yeeb nkab hlau tsis muaj seamless siv rau hauv cov raj boiler, cov raj hloov pauv cua sov thiab lwm yam kev lag luam, tuaj yeem siv ua cov yeeb nkab hlau rau cov cua sov kub thiab cov cua sov rov ua dua hauv cov boilers subcritical thiab supercritical nrog phab ntsa kub ≤625 ° C, nrog rau phab ntsa Cov taub hau kub thiab cov kav dej nrog kub ≤600 ℃ kuj tseem siv tau ua cov cua sov hloov pauv hluav taws xob nuclear thiab cov raj roj av tawg.
ASTM A335 P91 yog cov hlau kub-kub uas yog cov hlau chromium-molybdenum tsawg. Nws yog siv dav hauv cov kav dej thiab cov khoom siv hauv qab qhov kub thiab txias siab, xws li petrochemical, hluav taws xob, nuclear fais fab nroj tsuag thiab lwm yam teb. Cov khoom tseem ceeb ntawm cov khoom siv no yog chromium, molybdenum, tooj liab, manganese, silicon, phosphorus, sulfur thiab lwm yam ntsiab lus. Cov ntsiab lus ntawm chromium thiab molybdenum yog qhov siab, uas tuaj yeem txhim kho qhov kub thiab txias tsis kam thiab oxidation tsis kam ntawm cov khoom siv.
Cov khoom siv ASTM A335 P91 muaj cov khoom siv kho tshuab zoo heev thiab tseem tuaj yeem tswj tau lub zog zoo thiab tawv nyob rau hauv qhov kub thiab txias thiab qhov chaw siab. Cov khoom siv kuj tiv taus oxidation, uas tuaj yeem ua rau lub neej ua haujlwm ntawm cov kav dej thiab cov khoom siv ntev dua. Tsis tas li ntawd, cov khoom siv kuj muaj kev ua haujlwm vuam zoo, ua rau kev tsim kho thiab kev saib xyuas yooj yim.
Vim tias cov khoom siv ASTM A335 P91 muaj cov yam ntxwv zoo no, nws siv dav hauv qee qhov kub thiab txias siab. Piv txwv li, hauv kev lag luam petrochemical, cov kav dej thiab cov khoom siv ua los ntawm ASTM A335 P91 tuaj yeem tiv taus kev yaig tshuaj thiab xeb hauv qab qhov kub thiab txias siab, ua kom muaj kev nyab xeeb ntawm cov khoom siv. Hauv cov teb ntawm lub zog hluav taws xob thiab cov chaw tsim hluav taws xob nuclear, cov kav dej thiab cov khoom siv ua los ntawm ASTM A335 P91 tuaj yeem tiv taus kev xeb thiab xeb ntawm cov pa dej thiab cov pa dej thiab lwm yam xov xwm hauv qab qhov kub thiab txias siab, ua kom muaj kev ua haujlwm ib txwm ntawm cov khoom siv.