ASTM A500 yog dab tsi
ASTM A500 yog tus qauv Asmeskas rau cov khaub thuas- ua welded thiab seamless carbon steel structural tubing nyob rau hauv round, square, thiab rectangular duab, feem ntau hu ua hollow structural seem (HSS). Lub raj yog tsim nyob rau hauv chav tsev kub los ntawm kub- dov sawb los yog phaj: round tube yog yob- tsim thiab welded longitudinally los ntawm hluav taws xob kuj welding (ERW), thiab square thiab rectangular seem yog tsim los ntawm round raj los yog ncaj qha los ntawm sawb nyob rau hauv ib tug shaping zeb. Tus txheej txheem npog peb qib zog, A, B, thiab C, thiab yog cov kev qhia dav dav tshaj plaws rau cov qauv raj hauv North American kev tsim kho.
Cov Qib thiab Lawv Cov Khoom
Peb qib ntawm A500 yog qhov txawv ntawm lawv qhov tsawg kawg nkaus tawm los thiab lub zog tensile:
| Qib | Yam tsawg kawg nkaus yield zog | Tsawg kawg tensile zog |
|---|---|---|
| A | 39,000 psi (270 MPa) | 45,000 psi (310 MPa) |
| B | 46,000 psi (315 MPa) | 58,000 psi (400 MPa) |
| C | 50,000 psi (345 MPa) | 62,000 psi (425 MPa) |
Cov kev xav tau elongation yog tsim los ntawm qib thiab phab ntsa tuab, nrog cov qib siab dua yuav tsum tau elongation tsawg dua vim lawv lub zog ntau dua. Qib B yog qhov kev xaiv ua ntej rau kev ua haujlwm dav dav; Qib C yog siv qhov twg lub zog siab dua txo qhov loj me me, thiab Qib A yog qhov kev xaiv kev lag luam rau lub teeb. Cov qib tau teev ua ke nrog cov duab thiab qhov loj me, piv txwv li HSS 6x6x3/8 Qib B.
Kev tsim khoom: Txias-Tsim, Welded lossis Seamless
A500 tubing txhais tau tias yog txias- tsim: qhov kawg shaping yog ua tiav ntawm chav tsev kub. Cov sawb nyoos los yog phaj yuav kub- dov, tab sis lub raj - ua cov txheej txheem nws tus kheej yog txias txias, uas txhim kho qhov chaw tiav thiab qhov sib xws. Lub qhov ntev ntawm cov welded raj yog tsim los ntawm hluav taws xob tsis kam welding los ntawm tag nrho cov phab ntsa tuab, thiab thaj tsam weld yog normalized los ntawm vuam cua sov los yog tom qab cua sov-kho kom cov weld zog phim lub hauv paus hlau. Seamless A500 raj yog tsim los ntawm kev tho thiab dov ib qho khoom siv thiab siv qhov chaw vuam seam tsis tsim nyog rau tus tsim qauv.
Tej kev siv
A500 structural tubing yog siv rau lub tsev thav duab, kab thiab kab teeb, lub ru tsev trusses, mezzanine lug, kev loj kos npe rau kev txhawb nqa, teeb pom kev zoo thiab kev siv ncej, choj railings thiab cov neeg taug kev qauv, kev sib txuas lus yees, industrial cov khoom thav duab, ua liaj ua teb machinery, thiab architectural thiab ornamental steelwork. Qhov kaw qhov hollow muab lub zog siab - rau- qhov hnyav piv, huv si, thiab kev ua tau zoo hauv compression, dabtsi yog khoov, thiab torsion, uas yog vim li cas HSS yog ib qho kev nyiam rau txhua kab thiab raug steelwork.
Kev txiav txim siab tsim
Tus qauv tsim ntawm HSS ua raws li cov cai siv, xws li AISC 360 rau cov tsev steel hauv North America, uas hais txog A500 rau cov khoom siv. Tus tsim qauv yuav tsum txheeb xyuas cov txiaj ntsig thiab tensile lub zog, phab ntsa -thickness kam rau ua, thiab lub kaum sab xis ntawm square thiab rectangular seem, vim hais tias lub kaum sab xis geometry cuam tshuam rau cov khoom seem. Vuam ntawm A500 raj rau lwm cov hlau siv cov txheej txheem vuam txheej txheem; cov khoom yog weldable nrog ib txwm xyaum rau carbon steel. Qhov twg lub raj yog pleev xim los yog galvanized tom qab fabrication, qhov kev npaj nto ua raws li cov txheej txheem txheej.
Cov lus nug nquag
Q: ASTM A500 siv rau dab tsi?
Nws yog siv rau txias - tsim welded thiab seamless carbon steel structural tubing nyob rau hauv round, square, thiab rectangular duab, feem ntau yog siv rau kev tsim kho thiab structural daim ntaub ntawv xws li kab, kab, ncej, thiab kev txhawb nqa.
Q: Qhov txawv ntawm Qib A thiab Qib B A500 yog dab tsi?
Qib B muaj qhov tsawg kawg nkaus tawm los thiab lub zog tensile (46 ksi thiab 58 ksi tiv thaiv 39 ksi thiab 45 ksi) thiab yog qib feem ntau teev rau kev ua haujlwm dav dav.
Q: Puas yog A500 tubing kub dov?
Lub raj yog txias-tsim los ntawm sawb los yog phaj uas nws tus kheej yog kub- dov. Cov khoom lag luam A500 txhais tau tias yog txias- tsim cov qauv tubing.
Q: Puas yog A500 seamless lossis welded?
Ob leeg. Tus txheej txheem npog welded tubing ua los ntawm ERW thiab seamless tubing ua los ntawm tho ib tug billet. Welded raj yog cov khoom siv ntau; seamless yog teev thaum lub seam tsis tau.
Q: Qib C A500 yog dab tsi?
Qib C yog qhov siab tshaj - qib zog ntawm A500, nrog qhov tsawg kawg nkaus tawm lub zog ntawm 50,000 psi thiab lub zog tensile yam tsawg kawg nkaus ntawm 62,000 psi, siv rau hnyav - cov haujlwm ua haujlwm.
Q: Suav sib npaug ntawm A500 Qib B yog dab tsi?
Qhov sib npaug ze tshaj plaws hauv tsev yog GB / T 6728 txias - tsim welded hollow seem steel hauv cov chav kawm muaj zog, lossis Q355-raws li cov qauv hollow seem. Cov khoom vaj khoom tsev thiab kev kam rau siab yuav tsum muab piv ua ntej hloov.
