ASTM A213 T91 thiab ASTM A335 P91 alloy steel yeeb nkab
Qib T91 tau teev tseg hauv ASTM A213 yog siv rau kev tsim cov ferritic thiab austenitic boiler superheater thiab kub exchanger seamless steel kav, thaum qib P91 teev nyob rau hauv ASTM A335 yog siv rau ferritic thiab alloy seamless steel kav rau kev siv kub. .
Cov khoom siv twg yog T91 raj ua los ntawm?
Cov tshuaj muaj pes tsawg leeg ntawm SA 213 T91 raj muaj xws li chromium, carbon, manganese, npib tsib xee, silicon molybdenum, nitrogen thiab lwm yam kab kawm.
Dab tsi yog cov qauv tshwj xeeb rau ASTM A213 kav dej?
ASTM A213 yeeb nkab qhov loj thiab tuab feem ntau muab raws li qhov tshwj xeeb no yog 1⁄8 nyob rau hauv. [3.2 hli] hauv txoj kab uas hla mus rau 5 nti. [127 mm] sab nraud txoj kab uas hla, thiab 0 015 mus rau 0.500 nyob rau hauv. [0.4 mus rau 12.7 mm] (includ), yam tsawg kawg nkaus phab ntsa thickness, los yog nruab nrab phab ntsa thickness yog hais txog kev txiav txim.
ASTM A213 Gr T91 steel yeeb nkab muaj kev ua haujlwm kub zoo, oxidation tsis kam thiab corrosion kuj. Nws yog qhov tsim nyog rau cov kav dej kub ntawm cov kav dej qis thiab nruab nrab siab boilers (kev ua haujlwm siab feem ntau tsis ntau dua 5.88Mpa, ua haujlwm kub qis dua 450 degree), nrog rau kev kub siab boilers (Lub siab ua haujlwm feem ntau siab dua 9.8Mpa thiab ua haujlwm. Qhov kub thiab txias yog nruab nrab ntawm 450 degree thiab 650 degree) cua sov cov kav dej, kev lag luam, superheaters, reheaters thiab petrochemical kev lag luam kav, thiab lwm yam.
