Dab tsi yog qhov zoo ntawm ASTM A672 electrofusion welded (EFW) steel yeeb nkab

ASTM A672 yog dab tsi?

ASTM A672 Cov Lus Qhia Tshwj Xeebyog tus qauv specification rau siab hlab qib electrofusion welded steel yeeb nkab ua los ntawm siab hlab ntsha qib steel phaj. Cov yeeb nkab no yog tsim los siv covElectrofusion vuam (EFW)txheej txheem thiab muaj cov hlau muab tub lim ntxiv, haum rau siab - qhov chaw siab ntawm qhov kub nruab nrab.

ASTM A672 EFW steel yeeb nkab yog dab tsi?

ASTM A672 EFW steel yeeb nkabyog ib tug qauv specification rau siab hlab qib electrofusion welded steel yeeb nkab ua los ntawm siab hlab ntsha qib steel phaj, tsim rau siab -pressure ib puag ncig ntawm nruab nrab kub.

Dab tsi yog qhov txawv ntawm ASTM A672 thiab ASTM A671?

Ob leeg ASTM A671 thiab A672 yog cov qauv rau cov yeeb nkab steel ua los ntawm cov hlab ntsha siab qib steel phaj siv electrofusion vuam (EFW) thev naus laus zis thiab nrog cov khoom siv hlau ntxiv. Txawm li cas los xij, lawv txawv ntawm lawv daim ntawv thov, qib, specifications, qhov ntev, thiab cov ntawv thov tshwj xeeb.

Dab tsi yog qhov txawv ntawm ERW steel yeeb nkab thiab seamless steel yeeb nkab?

Qhov sib txawv tseem ceeb nyob hauv cov txheej txheem tsim khoom:ERW steel yeeb nkabyog tsim los ntawm welding steel strips rau hauv lub raj, thaum seamless steel yeeb nkab yog tsim los ntawm xuas nrig ntaus thiab extruding ib daim hlau tsis muaj vuam; seamless steel yeeb nkab tsis muaj weld seams.

Dab tsi yog qhov zoo ntawm ASTM A672 Electrofusion Welded (EFW) steel yeeb nkab?

ASTM A672 tus qauv electrofusion welded (EFW) steel yeeb nkabmuaj ntau yam zoo: siab zog, haum rau siab - kev siv siab; zoo heev corrosion kuj; thiab kev ua tau zoo nyob rau hauv siab -kub thiab thermal cycling ib puag ncig. Nws lub cev tsis sib xws, qhov tsis xws luag -dawb weld seam ua kom muaj kev ncaj ncees.