Qhov txawv ntawm 20 # flange thiab Q235B flange; Cov khoom siv carbon steel flange no puas tuaj yeem siv sib hloov? Peb seamless steel yeeb nkab yog 20 # steel yeeb nkab tuaj yeem welded nrog Q235B flange? Hais txog cov teeb meem no, kuv yuav qhia rau koj luv luv hnub no.
Cov hlau tooj ntawm 20# sib raug rau ob lub teb chaws tus qauv: ib qho yog GB / T 8163-2018 Seamless Steel Pipe Manufacturing Standard for Fluid Transportation, and the other is NB/T{{2} } Carbon steel and alloy steel forgings for cov khoom siv siab bearing.
Lub teb chaws tus qauv ntawm cov hlau tooj Q235B yog GB{711-2008, GB / T{3274-2017 carbon structural steel thiab cov hlau tsis tshua muaj hlau kub dov steel phaj thiab steel sawb, Q235B feem ntau yog ua los ntawm steel phaj, tseem muaj cov welded raj ua los ntawm cov hlau phaj li Q235B GB/T3091-2015 thiab Q235B SY/T5037-2018 txheem steel raj.
Kev siv kub: Q235B kev siv dav dav yog -10 ~ 350 degree, 20 # steel siv kub yog -20 ~ 425 degree ;
Ua hauj lwm siab: Q235B feem ntau xav kom tsim siab tsawg dua 3.0MPa; 20 # steel tuaj yeem dais siab dua;
Qhov nruab nrab siv tau: Q235B feem ntau yog siv rau hauv cov yeeb nkab uas tsis muaj tshuaj lom, tab sis kuj tseem siv rau hauv cov qauv hlau xws li kev txhawb nqa hangers, thiab lwm yam., Q235B yuav tsum tsis txhob siv rau liquefied hydrocarbons, qib ntawm toxicity yog siab thiab tsis tshua muaj teeb meem; 20 # steel yog siv dav dua, thiab 20 # steel tuaj yeem siv rau hauv cov tshuaj lom neeg, hluav taws xob thiab tawg.
Cov tshuaj muaj pes tsawg leeg ntawm 20 # thiab Q235B yog qhov zoo sib xws, thiab cov khoom siv lub cev zoo sib xws, txawm hais tias Q235B thiab 20 # steel yog ob yam khoom, tab sis lawv tuaj yeem welded ua ke, tsis muaj qhov sib txawv hauv vuam. Flanges feem ntau yog ua los ntawm forgings, forgings feem ntau yog 20 # cov khoom, los ntawm cov khoom taw tes ntawm view, 20 # yog cov yeeb nkab los yog forgings siab tshaj Q235B.
