Nyob rau hauv thermal fais fab nroj tsuag, chav yog tsim los ntawm qhov kub siab heev (txog 600 degree los yog 1100 degree F) thiab high pressures (txog 1500 psi los yog ntau tshaj).SIB 347Nws yog resistant rau oxidation, carburization, thiab kub creep deformation.SS 347 seamless kavyog siv los nqa lub zog siab ntawm boilers mus rau turbines thiab lwm yam khoom siv. Cov kav dej no yuav tsum tiv taus qhov siab ntawm 1000 psi lossis ntau dua thiab kub ntau dua 540 degree (1000 degree F), uaalloy 347hlau xaiv zoo heev.
Cov khoom tseem ceeb ntawm ASTM A213 SS 347H rau Boiler Tube Applications:
- Intergranular Corrosion Resistance
- Siab kub zog
- SS 347 ua haujlwm ntawm qhov kub txog li 600 degree (1112 degree F), uas feem ntau lwm cov ntaub ntawv tsis muaj zog thiab tsis ua haujlwm.
- Oxidation thiab carburization tsis kam
- Creep kuj
Daim ntawv thov nyob rau hauv ntau qhov chaw ntawm boiler system nyob rau hauv Thermal fais fab nroj tsuag:
a. High-pressure Steam Piping:
347 Stainless hlau yeeb nkabs yog siv nyob rau hauv high-pressure chav piping uas nqa chav los ntawm lub boiler mus rau lub turbine.
b. Chav dej thiab chav sib cais:
Nyob rau hauv thermal fais fab nroj tsuag, dej thiab chav sib cais chav yog lub luag hauj lwm rau kev cais cov chav los ntawm cov dej nyob rau hauv lub boiler nruas. SS UNS S34700 yog siv rau hauv cov khoom no, uas yuav tsum tau tiv thaiv kev kub siab, kub kub, tshuaj lom neeg ua haujlwm.
c. Feedwater Piping:
Lub feedwater system yog qhov tseem ceeb rau rov qab cov dej condensed rau lub boiler. AISI 347 yog siv nyob rau hauv cov kav dej no los tiv thaiv corrosion tshwm sim los ntawm tshav kub thiab lub voj voog, nrog rau kev tswj cov dej uas muaj ntau cov roj yaj thiab cov zaub mov.
d. Boiler Rauv Thiab Combustion Chamber:
SS 347 kuj tseem siv rau hauv boiler furnaces thiab combustion chambers, qhov twg cov txheej txheem combustion generates kub heev. Cov kav dej siv ntawm no yuav tsum raug rau ob qho tib si qhov kub thiab txias uas tsim los ntawm cov txheej txheem combustion nrog rau cov roj kub kub.
