1. Q: Dab tsi yog qhov tshwj xeeb tshaj plaws rau seamless carbon steel yeeb nkab hauv kev siv tshuab?
A:ASTM A106 1. Qhov kev qhia tshwj xeeb no suav nrog seamless carbon steel yeeb nkab rau siab - kev pabcuam kub. Nws yog dav siv nyob rau hauv fais fab nroj tsuag, refineries, thiab thauj chav, dej, thiab roj.
2. Q: Qhov txawv ntawm "Seamless" (SMLS) thiab "Welded" (ERW / SAW) yeeb nkab yog dab tsi?
A: Seamless yeeb nkabyog tsim los ntawm piercing ib tug khoom billet ntawm steel, tsim ib tug yeeb nkab uas tsis muaj seam. Nws feem ntau muaj zog dua thiab siv rau kev siv siab -siab.Welded yeeb nkabyog tsim los ntawm dov steel phaj/skelp thiab vuam cov seam (siv Electric Resistance Vuam - ERW, los yog Submerged Arc Vuam - SAW). Nws yog tus nqi ntau dua -zoo rau txoj kab uas hla loj dua thiab qis dua lub luag haujlwm.
3. Q: Tus lej "Schedule" txhais li cas (piv txwv li, Teem sijhawm 40, Teem sijhawm 80)?
A:"Schedule" (SCH) yog tus qauv uas hais txog phab ntsa thickness ntawm cov yeeb nkab rau ib txoj kab uas hla. Lub sij hawm ntau dua txhais tau tias yog phab ntsa tuab thiab siab dua qhov ntsuas. Rau tib lub nominal yeeb nkab loj (NPS), Schedule 80 yeeb nkab muaj ib phab ntsa tuab dua li Schedule 40.
4. Q: Vim li cas "Black Steel" yeeb nkab hu ua "dub," thiab nws feem ntau siv rau dab tsi?
A:"Dub steel" yeeb nkab tau txais nws lub npe los ntawm cov hlau tsaus- oxide nplai uas tsim rau ntawm nws qhov chaw thaum lub sijhawm tsim khoom. Nws yog uncoated thiab feem ntau yog siv rau thauj cov pa roj thiab dej, nrog rau cov hluav taws kub sprinkler systems thiab structural daim ntaub ntawv (xws li fencing), qhov twg corrosion kuj tsis yog thawj qhov kev txhawj xeeb.
5. Q: Qhov txawv ntawm ASTM A53 thiab ASTM A106 yeeb nkab yog dab tsi?
A:Qhov sib txawv tseem ceeb yog qhov ntsuas kub qhov kev pab cuam.ASTM A53yog rau qhov dav dav, qis - mus rau - qhov nruab nrab qhov kub thiab txias.ASTM A106 1yog tsim tshwj xeeb rau kev ua haujlwm siab - qhov kub thiab txias (txog 750℃F / 400 degree), ua rau nws tsim nyog rau kev tsim hluav taws xob thiab cov txheej txheem cov nroj tsuag. A106 kuj muaj cov tshuaj chemical thiab tensile yuav tsum nruj dua.
