ASTM A312 TORP36 seamless muaj steel yeeb uns s31600 smls steel yeeb nkab
Inconel 600 lub phaj yog ib hom khoom lag luam uas tsis muaj zog muaj zog. Lawv tiv thaiv kev corrosion xws li pitting thiab crevice. Ntxiv mus, cov nickel alloy 600 nplooj ntawv tseem muaj peev xwm los ua cua sov lossis daim ntawv txias.
Qhov muaj pes tsawg leeg ntawm cov hlau stainless 304l flanges muaj carbon, npib tsib xee, silicon, nitrogen, mangelese, phosphorus thiab chromium. 304L muaj nyob rau hauv cov qib sib txawv nyob ntawm cov ntsiab lus carbon.
ASTM A312 UNR UNL UN31254 YeebS32205 yog lub duplex stainless hlau nrog ob zaug lub zog ntawm Anustenitic Stainless hlau. Duplex stainless hlau muaj txog 21% chromium, 2.5% molybdenum thiab 4.5% npib tsib xee-nitrogen alloy. Nws muaj lub zog siab, cuam tshuam zoo heev nruj thiab zoo tag nrho thiab kev ntxhov siab hauv cheeb tsam kev tiv thaiv. Cov txiaj ntsig lub zog ntawm ob lub stlexs stainless hlau yog ob zaug uas ntawm Austenitic stainless hlau, ib qho kev tsim tawm thaum tsim cov khoom lag luam, ua rau cov khoom lag luam uas muaj peev xwm ua rau muaj 316, 317l. Cov alloy no yog tsim nyog rau kev siv nyob rau hauv cov -50¡ÃF \ / + 600¡Ãf kub. Rau cov ntawv thov sab nraum qhov kub thiab txias no, tab sis muaj qee qhov kev txwv, tshwj xeeb tshaj yog thaum siv rau welded qauv. Duplex Stainless hlau muaj ob zaug lub compressive lub zog piv rau antenitic stainless hlau, thiab cov tsim qauv tuaj yeem txo nws qhov hnyav piv rau 316L thiab 317L. Alloy 2205 yog qhov tshwj xeeb rau kev siv nyob rau hauv the -50¡ÃF \ / tseem siv tau ntawm qhov chaw kub qis dua nyob rau hauv kev txwv hnyav nyob rau hauv kev txwv hnyav (tshwj xeeb yog rau welded qauv).

High qib ntawm alloying cov ntsiab lus muab SMO 254 yeeb nkab zoo heev rau kev ua kom huv. Vim nws cov ntsiab lus siab ntawm chromium thiab molybdenum, DIN 1.4547 yeeb nkab tuaj yeem tiv thaiv ntau yam ntawm cov kua qaub. Kuj yog qhov pitting thiab crevice corrosion tsuas yog nyob ntawm cov ntsiab lus ntawm chromium, molybdenum thiab nitrogen. Nws cov qauv ua ke cuam tshuam cov kab mob nruj ua rau cov chloride kev ntxhov siab corrosion, pitting thiab crevice corrosion. Ib daim tiaj tiaj tiaj lossis daim ntawv lossis lub phaj ntawm 254 Smo alloy yog nias rau qhov uas xav tau cov tshuaj hollow ntawm qhov ntev ncab. Cov yeeb nkab no ces nias dua rau qhov xaus ntawm daim ntawv mus ntsib thiab welded nqaj welc, yog li tsim lub tshuab hluav taws xob zoo li lub zog hluav taws xob zoo li txias thiab ua raws li ib tug 254 SMO VUAM YEEB. Qhov no 6mo welded kav muaj weld los yog sib koom ua ke, thiab yog li pheej yig dua nws cov counterpart Seamless kav thiab li ntau ntxiv hauv kev thov thiab npaj muaj. Lub phab ntsa tuab ntawm 6Moly welded kav yog ntau dua li nws counterpart. Sab hauv uns uns uns unical pipes tuaj yeem tshawb xyuas thiab ntxuav ua ntej kev tsim khoom tom qab ntawd, uas tsis tuaj yeem nyob hauv seamless kav.
Tsim cov qauv ASME B36.10 ASME B36.39
Stainless hlau yeeb nkab fittings Qib 304 khoov
| Mo | Tel: | Roob npe | Tus zuag | Cr | Ni | CU | Si | C | Mn |
| ASME | ASME | ASME | ASME | ASME | |||||
| 0.02% | 19.5% – 20.5% | 0.5% – 1.0% | 1.00% | 6.0% – 6.5% | 0.18% – 0.22% | 17.5% – 18.5% | 0.03% | 0.01% | 0.80% |