S235JR khoom yog dab tsi?
S235 JRyog ib qho qis - carbon structural steel ua raws li European tus qauv EN 10025-2. "S" sawv cev rau cov qauv hlau, "235" qhia nws qhov tsawg kawg nkaus lub zog ntawm 235 MPa, thiab "JR" qhia tias nws lub zog cuam tshuam ntawm chav tsev kub yog tsawg kawg 27 Joules.
Cov hlau twg sib npaug rau S235JR steel?
S235JR hlaumuaj cov hlau sib xws hauv ntau tus qauv thoob ntiaj teb, feem ntau suav nrog ASTM A36 (USA), ST37-2 (Lub Tebchaws Yelemees), thiab Q235B (Tuam Tshoj).
Dab tsi yog spiral welded yeeb nkab?
Kauv welded yeeb nkabyog ib hom yeeb nkab ua los ntawm spiraling steel coils rau hauv lub tog raj kheej thiab vuam cov seam siv submerged arc vuam.
Qhov txawv ntawm S235JR thiab S275JR yog dab tsi?
Lub ntsiab sib txawv yog nyob rau hauv lub yield zog thiab tensile zog ntawmS275 JR, uas yog ob qho tib si siab dua li ntawm S235JR, ua rau nws tsim nyog rau cov qauv siv uas yuav tsum tau ua kom hnyav dua thiab ua haujlwm siab dua. Qhov tsawg kawg nkaus tawm lub zog ntawm S275JR yog 275 MPa, thaum lub S235JR yog 235 MPa.
Dab tsi yog qhov txawv ntawm kauv welded kav thiab ncaj seam welded kav?
Lub ntsiab sib txawv yog nyob rau hauv cov kev taw qhia ntawm lub weld: lub weld ntawm akauv welded yeeb nkabyog kauv-zoo li tus vim hais tias cov hlau yog dov thiab welded ntawm ib lub kaum ntse ntse, thaum ib tug ncaj seam welded yeeb nkab muaj ib tug longitudinal weld extending raws nws ntev.
