Q: Dab tsi yog qhov tsawg kawg nkaus tawm lub zog ntawm GB / T 9711.1 Qib L245 welded yeeb nkab?A: GB / T 9711.1 Qib L245 (sib npaug rau API 5L Qib B) muaj qhov tsawg kawg nkaus yield zog ntawm 245 MPa, uas yog dav siv nyob rau hauv cov roj thiab roj xa mus kav hauv Suav teb.
Q: ASTM A333 Qib 6 welded yeeb nkab puas tuaj yeem siv rau qis -kev siv kub?A: Yog, ASTM A333 Qib 6 yog cov pa roj carbon steel welded yeeb nkab tsim los rau qis- kev pabcuam kub, nrog rau qhov kub thiab txias ntawm -45℃(-49℃F), haum rau cov kua dej cryogenic thiab roj pipelines.
Q: Cov khoom muaj pes tsawg leeg ntawm EN 10219-1 Qib S235JR welded yeeb nkab yog dab tsi?A: EN 10219-1 Qib S235JR yog cov khoom siv carbon steel welded yeeb nkab, nrog cov ntsiab lus siab tshaj plaws ntawm 0.17%, manganese cov ntsiab lus ntawm 1.40%, thiab lub zog tawm los tsawg kawg ntawm 235 MPa, siv rau kev siv cov qauv thiab cov kav dej.
Q: Dab tsi yog qhov txawv ntawm ERW thiab submerged arc welded (SAW) API 5L X60 kav?A: ERW kav dej yog tsim los ntawm hluav taws xob tsis kam vuam, nrog kev ua haujlwm siab thiab tsim nyog rau me me - rau - cov kav dej nruab nrab. SAW kav dej yog welded los ntawm submerged arc vuam, nrog ib tug tuab weld seam, siab zog, thiab haum rau loj - txoj kab uas hla, siab - siab pipelines.
Q: GB / T 3091 welded kav puas tuaj yeem siv rau kev faib khoom cua?A: Yog, GB / T 3091 kub-dip galvanized welded kav (Qib Q235B lossis Q355B) tuaj yeem siv rau qis- siab cov pa xa hluav taws xob xa hluav taws xob (siab dua lossis sib npaug rau 0.4 MPa), vim tias lawv muaj qhov zoo corrosion thiab airtightness.
