ASTM A500 structural Hollow Sections
ASTM A500 tus qauv kev qhia tshwj xeeb rau Cold-Formed Welded thiab Seamless Carbon Steel Structural Tubing hauv Rounds thiab Shapes
Cov txheej txheem tsim khoom
ASTM A500 structural yeeb nkab yog ib tug welded yeeb nkab loj yeeb nkab ua los ntawm cov hlau tiaj tus, tsim los ntawm ib tug roller system, thiab welded siv kuj welding. Lub taub qab longitudinal sib koom ua ke ntawm cov yeeb nkab welded yuav tsum tau welded hla nws tag nrho cov tuab kom ntseeg tau tias cov qauv tsim lub zog ntawm cov yeeb nkab seem. Welded structural steel kav feem ntau ntsia tsis tau tshem tawm sab hauv flash.
Cov txiaj ntsig ntawm cov qauv welded yeeb nkab
1. Lub zog: Nws muaj lub zog-rau-hnyav piv, zoo heev compression txhawb cov yam ntxwv thiab zoo heev torsional zog.
2. Kev tshwm sim: Hauv kev nthuav tawm, tshwj xeeb tshaj yog nyob rau hauv daim ntawv thov ntawm architectural exposed structural steel (AESS) nyob rau hauv cov vaj tse, nws muab qhov zoo tshaj plaws lub sij hawm rau kev tsim cov vaj tse thiab lwm yam qauv.
3. Uniformity: Nws muaj qhov loj me, cov duab, lub zog thiab kev ua siab ntev, uas ua rau nws siv tau tag nrho thiab yog qhov tseem ceeb tshwj xeeb rau kev thov OEM.
4. Yooj yim ua: Nws tuaj yeem khoov tau yooj yim, tsim, stamped thiab drilled. Kev txhim kho ntawm kev sib txuas tsim siv los kho cov txheej txheem yeeb nkab ntawm nws tus kheej lossis lwm yam khoom siv kuj txhim kho qhov yooj yim ntawm kev tsim khoom ntawm qhov chaw.
5. Tus nqi-kev ua tau zoo: Vim nws lub zog loj piv, tshwj xeeb tshaj yog nyob rau hauv A1085, nws yog tus nqi sib tw nrog lwm yam khoom siv. Los ntawm kev txhim kho kev sib txuas thiab txoj kev fastening, nws feem ntau muaj tus nqi kom zoo dua.
6. Resistance: Nws yog hluav taws kub resistant thiab yuav tsis warp, twist, phua, nthuav los yog shrink.
7. Consistency: Nws resists qhuav rot thiab pwm.
ASTM A500 yeeb nkab khoom (piv txwv li)
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Mechanical zog |
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ASTM A500 1 |
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Qib A |
Qib B |
Qib C |
Qib D |
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Tensile zog (min, psi) |
45000 |
58000 |
62000 |
58000 |
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Yield zog (min, psi) |
33000 |
42000 |
46000 |
36000 |
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Elongation hauv 2 nti (min, %) |
25* |
23** |
21*** |
23** |
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*Siv rau cov phab ntsa thicknesses (t) sib npaug los yog ntau dua 0.120". t+17.5, hloov mus rau qhov ze tshaj plaws. |
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** Siv rau cov phab ntsa thicknesses (t) sib npaug los yog ntau dua 0.180". }t+12, sib npaug mus rau qhov ze tshaj plaws. |
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*** Siv rau cov phab ntsa thicknesses (t) sib npaug los yog ntau dua 0.120". |
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Cov khoom siv tshuaj lom neeg |
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Chemistry (%) |
ASTM A500 1 |
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Qib A, B & D |
Qib C |
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Kev Ntsuas Kub |
Kev tshuaj xyuas khoom |
Kev Ntsuas Kub |
Kev tshuaj xyuas khoom |
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Cov pa roj carbon * |
0.26 Max |
0.30 Max |
0.23 Max |
0.27 Max |
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Manganese * |
1.35 Max |
1.40 Max |
1.35 Max |
1.40 Max |
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Phosphorus |
0.035 Max |
0.045 Max |
0.035 Max |
0.035 Max |
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Sulfur |
0.035 Max |
0.045 Max |
0.035 Max |
0.045 Max |
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Tooj ** |
0.20 feeb |
0.18 Min |
0.20 feeb |
0.18 Min |
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*Rau txhua qhov kev txo qis ntawm {{0}}.01 feem pua taw tes hauv qab qhov siab tshaj plaws rau cov pa roj carbon, qhov nce ntawm 0.06 feem pua ntawm cov ntsiab lus siab tshaj qhov siab tshaj plaws rau manganese raug tso cai, mus txog qhov siab tshaj ntawm 1.50% los ntawm kev ntsuas kub thiab 1.60% los ntawm kev txheeb xyuas cov khoom |
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** Yog tias tooj liab muaj hlau tau teev nyob rau hauv daim ntawv xaj yuav khoom
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Cim npe nrov: ASTM a500 hollow seem, Tuam Tshoj ASTM a500 hollow seem manufacturers, lwm tus neeg, Hoobkas
