Tus qauv ASTM A501 yog ib qho kev qhia tshwj xeeb uas npog kub - ua welded thiab seamless carbon steel structural tubing. Cov ntu hollow no feem ntau yog siv rau hauv kev tsim cov choj, cov tsev, thiab rau cov txheej txheem dav dav, qhov twg lawv tau koom nrog vuam, riveting, lossis bolting. Lawv yog cov yam ntxwv ntawm lawv cov khoom sib xws uas tshwm sim los ntawm cov txheej txheem kub -, uas txhim kho ductility thiab toughness.
ASTM A501 yog tsim raws li:
ASTM A501/A501M: Standard Specification rau Kub-Formed Welded thiab Seamless Carbon Steel Structural Tubing
Cov qauv no qhia txog cov kev xav tau rau cov qauv tubing uas yog tsim los ntawm qhov kub siab. Qhov kub- txheej txheem tsim ua kom zoo dua cov qauv ntawm cov hlau, muab qhov zoo ntawm cov khoom siv sib xws thiab txhim kho kev ua haujlwm hauv cov txheej txheem tseem ceeb.
Yog tias koj tab tom ua haujlwm nrog cov voj voog, square, lossis lub voj voos hollow seem (CHS, SHS, RHS) rau cov qauv tsim, kev nkag siab txog ASTM A501 tus qauv yog qhov tseem ceeb los xyuas kom meej cov khoom zoo, ua raws li qhov project specifications, thiab txhim khu kev qha kev ua tau zoo.
LEFIN STEEL --- Koj Trusted Partner for High-Quality Steel Tubes thiab Pipes
ASTM A501 Scope ntawm Daim Ntawv Thov:
ASTM A501 qhia qhov yuav tsum tau ua rau kub - ua carbon steel tubing nyob rau hauv lub voj voog, square, duab plaub, thiab cov duab tshwj xeeb. Nws muaj feem xyuam rau ob qho tib si welded thiab seamless tubing uas ua los ntawm kub - txheej txheem tsim. Cov tubing feem ntau yog muab rau hauv raws li - tsim cov mob thiab yog npaj rau kev siv cov qauv siv sib xyaw ua ke ntawm lub zog, formability, thiab weldability yog qhov tseem ceeb.
Nyob rau hauv cov ntsiab lus, thaum ASTM A500 npog txias-tsim tubing, ASTM A501 yog tus qauv sib thooj rau kub-tsim tubing. Qhov kev sib txawv no yog qhov tseem ceeb, vim qhov kub- txheej txheem tsim nyob rau hauv A501 feem ntau ua rau qis zog tab sis siab dua ductility thiab zoo dua toughness piv rau cov khaub thuas- tsim cov khoom ntawm A500, ua rau nws haum rau daim ntawv thov uas yuav tsum tau ntau forming los yog dynamic loads.
ASTM A501 specification qhia txog cov txheej txheem kev xa khoom rau kub - tsim cov qauv tubing, muab kev lees paub tseem ceeb rau cov khoom xws li lub zog tawm los, lub zog tensile, thiab tshuaj muaj pes tsawg leeg.
Lub Classified Steels
Cov hlau hauv ASTM A501 tau muab faib ua feem ntau ntawm cov qib sib txawv raws li lawv cov khoom siv kho tshuab, tshwj xeeb tshaj yog tawm los thiab lub zog tensile. Tsis zoo li EN 10210, cov txheej txheem xaiv tau tsawg dua ntawm cov txheej txheem thiab ntau ntxiv txog qhov tshwm sim ntawm lub zog.
Rau carbon steel structural tubing nyob rau hauv ASTM A501, lub npe muaj xws li tus qauv tooj thiab qib, uas qhia nws lub zog theem.
Qib A: General - hom phiaj qib nrog lub zog nruab nrab.
Qib B: Qib siab dua -lub zog nrog cov lus qhia qis- qhov kub thiab txias (xws li yuav tsum tau ua ntxiv).
Qib C: Ib qib siab dua - lub zog rau kev thov ntau dua .
Piv txwv li:ASTM A501 Qib B
ASTM--American Society for Testing and Materials
A501-- Tus naj npawb ntawm tus qauv specification
Qib B-- Qhia cov qib nrog qhov tsawg kawg nkaus tawm lub zog ntawm 46,000 psi (315 MPa) thiab teev cov kev cai tensile.
* Ceeb Toom: Ib qho kev xaiv ntxiv uas yuav tsum tau muaj (S1) rau Qib B qhia qis - ntsuas qhov ntsuas kub kom ntseeg tau tias muaj zog ntawm qhov kub thiab txias .*
ASTM A501 Requirements rau Chemical Composition of Pipes
Cov tshuaj muaj pes tsawg leeg rau ASTM A501 steel yuav tsum ua raws li cov cai hauv qab no rau kev ntsuas kub.
| TABLE 1 Chemical RequirementsA | ||||
| Element | Kev sib xyaw,% | |||
| Qib A | Qib B, C | |||
| Kub tsom xam |
Khoom tsom xam |
Kub tsom xam |
Khoom tsom xam |
|
| Cov pa roj carbon, maxB | 0.26 | 0.30 | 0.22 | 0.26 |
| Manganese, maxB | ... | ... | 1.40 | 1.45 |
| Phosphorus, max | 0.035 | 0.045 | 0.030 | 0.040 |
| Sulfur, max | 0.035 | 0.045 | 0.020 | 0.030 |
| Tooj, thaum tooj liab hlau yog teev, min | 0.20 | 0.18 | 0.20 | 0.18 |
| AWhere ib ellipsis(...) tshwm nyob rau hauv lub rooj no, tsis muaj yuav tsum tau. B Rau txhua qhov txo ofo.1 feem pua ntawm cov ntsiab lus qis dua qhov siab tshaj plaws rau cov pa roj carbon, qhov nce ntawm .06 feem pua ntawm cov ntsiab lus siab tshaj qhov teev siab tshaj plaws rau manganese raug tso cai, mus txog qhov siab tshaj plaws ntawm 1.60% los ntawm kev ntsuas kub thiab 1.65% los ntawm kev tshuaj xyuas cov khoom. |
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ASTM A501 Mechanical Properties
Cov khoom siv kho tshuab rau ASTM A501 steel tubing sib txawv los ntawm qib thiab phab ntsa tuab. Cov lus hauv qab no qhia txog cov kev xav tau.
| TAB 2 1 Tensile thiab Impact Requirements | ||||
| Phab ntsa Thickness, hauv. [mm] |
Qib A | Qib B | Qib C | |
| Tensile zog, min, psi [MPa] | Tag nrho | 58000 [400] | 65000[448] | 70000[483] |
| Tsawg dua los yog sib npaug rau 1 [25] | 39000 [270] |
46000 [315] |
50000 [345] |
|
| >1 [25] ib Tsawg dua los yog sib npaug rau 2 [50] |
38000 [260] |
45000 [310] |
49000 [340] |
|
| Yield zog, min, psi [MPa] | >2 [50] ib Tsawg dua los yog sib npaug rau 3 [76] |
36500 [250] |
42500 [290] |
47500 [330] |
| >3 [76] ib Tsawg dua los yog sib npaug rau 4 [100] |
35000 [240] |
40000 [280] |
46000 [315] |
|
| Elongation, min, % | 25 | 24 | 23 | |
| Impact Energy, min.average ft/lbf [J](saib 10.4) min. ib ft/lbf [J](saib 10.4) |
20 [27] 14[19] |
20 [27] 14[19] |
20 [27] 14[19] |
|
Kev kam rau siab ntawm qhov ntev yog tsim raws li ASTM A501 / A501M.
Dimensions thiab kam rau ua rau ASTM A501 tubing yog teev nyob rau hauv tus qauv. Piv txwv li, square thiab rectangular tubing yog feem ntau muab nyob rau hauv qhov ntau thiab tsawg los ntawm 1 mus rau 32 ntiv tes (25 mus rau 800 mm) nyob rau sab tiaj tus, nrog phab ntsa thicknesses li ntawm 0.095 mus rau 3.00 nti (2.5 mus rau 75 mm), nyob ntawm seb loj.