1. Yam twg American Standard welded yeeb nkab qib sib raug rau GB / T 3091 Q215A welded yeeb nkab, thiab lawv qhov txawv ntawm daim ntawv thov yog dab tsi?
Teb: GB / T 3091 Q215A welded yeeb nkab (tsawg- cov kav dej siab, tsis muaj zog) sib raug rau ASTM A53 Qib A welded yeeb nkab hauv American Standard. Nyob rau hauv cov nqe lus ntawm daim ntawv thov, ob qho tib si yog siv rau qis - siab, qis -load scenarios, tab sis muaj qhov sib txawv: ASTM A53 Qib A muaj qhov tsawg kawg nkaus tensile lub zog ntawm 330 MPa, lub zog tawm los ntawm tsis pub tsawg dua 180 MPa, thiab yog siv rau kev siv qis dua - kev thauj mus los ntawm cov dej phwj (cov dej ntws thiab cov dej phwj); GB/T 3091 Q215A muaj tib yam khoom siv raws li ASTM A53 Qib A, tab sis nws yog siv ntau dua hauv cov kav dej hauv tsev nyob deb nroog, cov kav dej ua liaj ua teb thiab lwm yam tsawg -xav tau scenarios. Qhov txawv yog tias Q215A tsis muaj qhov cuam tshuam rau qhov yuav tsum tau ua, thaum ASTM A53 Qib A tuaj yeem xaiv tau rau kev cuam tshuam kev ua haujlwm raws li cov neeg siv xav tau.
2. Dab tsi yog qhov sib raug zoo ntawm API 5L X65 welded yeeb nkab thiab Tuam Tshoj tus qauv welded yeeb nkab, thiab lawv cov txiaj ntsig zoo li cas hauv nruab nrab thiab siab - cov roj thiab roj tsheb thauj mus los?
Teb: API 5L X65 welded yeeb nkab sib raug rau GB / T 9711.1 L555 welded yeeb nkab hauv Suav tus qauv (ceeb toom: L555 kuj sib raug rau X70, thiab X65 sib raug rau L485, uas yog ib qho kev sib raug zoo sib xws). Ob leeg muaj qhov zoo hauv nruab nrab thiab siab - kev thauj mus los ntawm cov roj thiab roj: API 5L X65 muaj lub zog tensile yam tsawg kawg nkaus ntawm 650 MPa, lub zog yield tsis tsawg dua 450 MPa, zoo weldability, toughness thiab corrosion kuj, uas tuaj yeem tiv taus nruab nrab thiab siab siab (10-} 14 MPa) kev sib koom ua ke thiab txo cov yeeb nkab kev tsim kho; GB / T 9711.1 L485 muaj qhov tseem ceeb tib yam khoom siv raws li API 5L X65 (lub zog tensile 570-720 MPa, yield zog ntau dua los yog sib npaug rau 485 MPa), thiab yog optimized rau domestic nruab nrab thiab high-pressure roj thiab roj pipelines, nrog zoo adaptability rau complex struts thiab ib puag ncig tej yam kev mob. Tsis tas li ntawd, ob qho tib si sib haum nrog cov qauv thoob ntiaj teb, ua kom yooj yim rau kev sib koom ua ke ntawm kev lag luam hauv tsev thiab txawv teb chaws cov roj thiab roj.
3. Puas yog ASTM A106 Qib A welded yeeb nkab muaj cov qib sib xws hauv Suav teb, thiab lawv qhov txawv ntawm cov khoom siv tshuab yog dab tsi?
Teb: ASTM A106 Qib A welded yeeb nkab (carbon steel kua yeeb nkab) sib raug rau GB / T 8163 10# steel welded yeeb nkab hauv Suav qauv. Hais txog cov khoom siv kho tshuab, ob qhov sib txawv: qhov tsawg kawg nkaus tensile lub zog ntawm ASTM A106 Qib A yog 330 MPa, lub zog tawm los tsis pub tsawg dua 180 MPa, thiab qhov elongation tsis tsawg dua 30%; qhov tsawg kawg nkaus tensile lub zog ntawm GB / T 8163 10# steel yog 335 MPa, lub zog tawm los tsis tsawg dua 195 MPa, thiab qhov elongation tsis tsawg dua 28%. 10# steel muaj zog me ntsis thiab qis dua elongation dua li ASTM A106 Qib A, uas tsim nyog rau kev siv dej tsawg dua {{13} cov kav dej, xws li cov kav dej thiab cov dej ntws; ASTM A106 Qib A muaj qhov toughness thiab ductility zoo dua, uas yog qhov tsim nyog rau kev thauj mus los ntawm cov kua dej uas tsis tshua muaj siab nrog qee yam deformation.
4. Dab tsi yog qhov sib piv Suav tus qauv qib rau ASTM A312 Qib TP316L welded stainless hlau yeeb nkab, thiab lawv qhov sib txawv ntawm qhov siab -kub creep resistance?
Teb: ASTM A312 Qib TP316L welded stainless hlau yeeb nkab sib raug rau GB / T 12771 022Cr17Ni12Mo2 welded stainless hlau yeeb nkab hauv Suav qauv. Nyob rau hauv cov nqe lus ntawm siab -kub creep tsis kam, ob qhov sib txawv me me: ASTM A312 TP316L muaj kev nkag siab zoo ntawm qhov kub siab (txog 870 degree), thiab creep rupture zog ntawm 700℃rau 1000 teev tsis tsawg tshaj li 100 MPa; GB/T 12771 022Cr17Ni12Mo2 muaj me ntsis siab dua creep rupture zog ntawm qhov kub thiab txias (700℃, 1000 teev Ntau tshaj los yog sib npaug rau 105 MPa), tab sis nws siab - kub oxidation kuj yog me ntsis qis dua li ntawm TP316L. Ob leeg yog siv nyob rau hauv siab - kub thiab siab - cov kav dej corrosion, xws li tshuaj reactors, thermal fais fab nroj tsuag tshav kub exchangers, thiab muaj peev xwm hloov tau nyob rau hauv feem ntau scenarios.
5. Yam Suav tus qauv welded yeeb nkab qib twg sib raug rau ASTM A500 Qib C welded cov yeeb nkab, thiab lawv qhov sib txawv ntawm lub zog yog dab tsi?
Teb: ASTM A500 Qib C welded duab plaub yeeb nkab (siab- lub zog cov yeeb nkab) sib haum rau GB / T 6728 Q355B welded duab plaub yeeb nkab hauv Suav qauv. Hais txog lub zog, ob qho tib si muaj qhov sib txawv: qhov tsawg kawg nkaus tensile lub zog ntawm ASTM A500 Qib C yog 415 MPa, lub zog tawm los tsis tsawg dua 290 MPa, thiab nws yog qhov tsim nyog rau siab - lub zog structural engineering; lub zog tensile yam tsawg kawg nkaus ntawm GB/T 6728 Q355B yog 470 MPa, lub zog tawm los tsis tsawg dua 355 MPa, thiab nws lub zog yog siab dua li ntawm ASTM A500 Qib C. Q355B yog qhov tsim nyog rau domestic high -lub zog} lub zog ntawm kev tsim vaj tse, xws li kev txhawb nqa loj 1, {1}, xws li kev txhawb nqa loj 1, {1} ASTM A500 Qib C yog qhov tsim nyog rau nruab nrab - lub zog ntawm cov qauv hauv kev lag luam thoob ntiaj teb.
