Qhov txawv ntawm 347 thiab 347H Stainless Hlau:
347 stainless hlau muaj cov ntsiab lus carbon ntawm 0.08% lossis tsawg dua, thaum 347H stainless hlau muaj cov ntsiab lus carbon ntawm 0.04% thiab 0.10%.
1. Cov ntsiab lus carbon:
Alloy 347 / UNS S34700 / 1.4550feem ntau muaj cov ntsiab lus qis dua piv rau 347H stainless hlau. Qhov qis carbon cov ntsiab lus nyob rau hauv 347 stainless hlau pab txhim kho nws cov weldability thiab corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv high-temperature daim ntaub ntawv.
2. Kev kho cua sov:
Alloy 347H / UNS S34709 / 1.4961yog lub siab carbon version ntawm 347 stainless hlau. Qhov "H" hauv 347H sawv cev rau cov ntsiab lus siab carbon. Cov ntsiab lus carbon ntau dua hauv 347H stainless hlau txhim kho nws lub zog thiab cov khoom kub kub. Nws kuj ua rau cov khoom tsim nyog rau cov ntawv thov uas yuav tsum tau ua kom muaj zog kub.
3. Weldability:
Vim nws cov ntsiab lus qis carbon,AISI 347 stainless hlaumuab cov weldability zoo dua piv rau 347H stainless hlau. Cov ntsiab lus ntawm cov pa roj carbon tsawg txo qis qhov tsim ntawm chromium carbide nag lossis daus ntawm cov ciam teb thaum lub sij hawm vuam, uas tuaj yeem ua rau intergranular corrosion thiab txo cov khoom siv kho tshuab.
4. Creep Resistance:
SUS 347H stainless hlau yeeb nkab, nrog nws cov ntsiab lus carbon ntau dua, ua kom pom kev txhim kho creep kuj piv rau 347 stainless hlau. Creep resistance yog hais txog lub peev xwm ntawm cov khoom los tiv thaiv deformation nyob rau hauv tas li load ntawm kub kub nyob rau lub sij hawm ntev. Qhov no ua rau 347H zoo dua rau cov ntawv thov uas cuam tshuam ntev rau qhov kub siab.
5. Daim ntawv thov:
Ob leeg 347 thiab 347H stainless hlau yog feem ntau siv nyob rau hauv high-kub daim ntaub ntawv, xws li nyob rau hauv kev tsim khoom ntawm petrochemical, tshuaj, thiab hluav taws xob kev lag luam. Txawm li cas los xij,347H stainless hlauyog nyiam nyob rau hauv daim ntawv thov uas siab zog thiab creep kuj nyob rau hauv siab kub yog qhov tseem ceeb.
Hauv cov ntsiab lus, thaum ob qho tib si 347 thiab 347H stainless hlau muaj kev tiv thaiv corrosion zoo heev thiab tsim nyog rau kev siv kub kub, qhov sib txawv ntawm cov ntsiab lus ntawm cov pa roj carbon monoxide, nrog 347H muaj cov ntsiab lus carbon ntau dua thiab yog li nthuav tawm cov khoom muaj zog thiab kub kub.
