"YEEB YAJ YWM HLAU HTASTM A335 GR P22- SCH 80. ASME B36.10 PLAIN ENDS (QUANTITIES UNIT: M)" yog ib pawg ntawm cov lus qhia txog kev siv tshuab uas piav qhia txog cov kav hlau sib xyaw. Cia peb tshuaj xyuas lawv ib qho los ntawm ib qho:

YEEB YAJ KHO HLAU HT:
"PIPE" txhais tau tias yeeb nkab, thiab "ALLOY STEEL" txhais tau tias hlau sib xyaw. Hlau sib xyaw yog hlau uas muaj ib lossis ntau yam khoom sib xyaw (xws li chromium, molybdenum, tungsten, thiab lwm yam) thiab muaj cov yam ntxwv zoo heev xws li tiv taus kub siab, tiv taus xeb thiab muaj zog.

"HT" feem ntau yog hais txog qhov yuav tsum tau kub siab, qhia tias cov yeeb nkab hlau no haum rau qhov chaw kub siab.

ASTM A335 GR P22:
Qhov no yog ib qho kev piav qhia txog tus qauv thiab qib ntawm cov ntaub ntawv yeeb nkab.

ASTM A335yog tus qauv tsim los ntawm American Society for Testing and Materials (ASTM) rau cov kav hlau tsis sib xyaw, tshwj xeeb tshaj yog rau qhov kub thiab txias thiab qhov chaw siab.
GR P22 yog qib khoom siv tshwj xeeb raws li tus qauv no, qhov twg "P22" qhia txog cov tshuaj lom neeg thiab kev ua tau zoo ntawm cov yeeb nkab. P22 alloy steel feem ntau muaj chromium (Cr) thiab molybdenum (Mo) cov ntsiab lus, muaj lub zog kub zoo thiab tiv taus corrosion, thiab tsim nyog rau qhov chaw kub siab.
SCH 80:
Qhov no hais txog qib tuab ntawm phab ntsa ntawm cov yeeb nkab, thiab "SCH" yog lub npe luv ntawm "Schedule".

SCH 80 txhais tau hais tias lub phab ntsa tuab ntawm cov yeeb nkab yog qhov tuab thiab tuaj yeem tiv taus qhov siab sab hauv. Rau SCH 80 yeeb nkab, nws lub phab ntsa tuab dua ntawm cov yeeb nkab uas muaj tib lub cheeb, uas tuaj yeem ua rau nws muaj peev xwm ua kom lub siab thiab tiv taus kev cuam tshuam.
ASME B36.10:
Qhov no yog tus qauv tsim los ntawm American Society of Mechanical Engineers (ASME) uas qhia txog qhov loj me, cov duab, kev kam rau siab, qhov hnyav thiab lwm yam kev xav tau ntawm cov kav hlau. B36.10 tsom mus rau qhov txoj kab uas hla sab nraud, phab ntsa tuab thiab lwm yam kev ntsuas ntawm cov kav hlau carbon thiab cov hlau alloy seamless thiab cov kav hlau welded kom ntseeg tau tias muaj tus qauv thiab kev sib xws ntawm cov khoom siv kav dej.

XAUS DAWB:
"Cov Kawg Plain" yog hais txog cov kav dej uas tsis muaj kev ua haujlwm lossis kev sib txuas kawg, feem ntau nrog cov nto du. Piv rau cov kav dej uas muaj kev sib txuas threaded lossis flanged, cov kav dej kawg tiaj tus feem ntau yog siv rau hauv cov ntawv thov uas xav tau kev sib txuas welded.

COV NTAUB NTAWV CHAW : M:
Qhov no qhia tau hais tias lub chav ntsuas rau cov khoom yog "meter", uas yog, qhov ntau ntawm cov yeeb nkab yog ntsuas hauv meters, tsis yog daim lossis lwm yam units.

Cov yeeb nkab piav qhia hauv cov lus piav qhia no yog cov yeeb nkab hlau kub siab uas ua tau raws li tus qauv ASTM A335 GR P22, nrog rau phab ntsa tuab ntawm SCH 80 thiab ua tau raws li tus qauv ASME B36.10. Qhov kawg ntawm cov yeeb nkab yog tiaj tus (tsis muaj xov lossis flanges), qhov ntev yog ntsuas hauv meters, thiab nws tsim nyog rau cov kav dej hauv qhov kub siab, siab thiab qhov chaw corrosive.