Lub zog tensile ntawm astm a500 yog 400MPa, lub zog tawm los yog 290MPa, thiab Suav hom yog: Q295B.
ASTM A500 sib npaug parameter:
Tensile zog 400mpa
Yield zog 310mpa
Tshuaj muaj pes tsawg leeg: c {{0}}.26, p 0.04, s 0.05
ASTM A500 Tus Qauv Zoo rau Cold Formed Welded thiab Seamless Carbon Steel Structure Pipes ntawm Rounds thiab Tshooj
Vajvoog structural yeeb nkab - Rau cov kav hlau uas muaj ib qho kev qhia sab nraud tsis ntau tshaj 1.9in (48.3mm), qhov kev hloov ntawm sab nraud yuav tsum tsis pub tshaj 0.5%, thiab tus nqi tshwj xeeb yuav tsum tsis pub tshaj {{7. }}.005in ({17}}.13mm). Rau cov kav hlau uas muaj cov kab nruab nrab uas tau teev tseg tsawg dua 2. (0.13 hli). Sab nraud txoj kab uas hla yuav tsum ntsuas tsawg kawg yog 2 ntiv tes (50.8 mm) los ntawm qhov kawg ntawm cov yeeb nkab.
Cov yeeb nkab square - lub sab nraud yog ntsuas tsawg kawg 2 ntiv tes (50.8mm) deb ntawm cov yeeb nkab kawg. Qhov sib txawv ntawm txoj kab uas hla ntawm cov yeeb nkab steel thiab cov txheej txheem txheej txheem yuav tsum tsis txhob tshaj qhov kev hloov ntawm sab nraud txoj kab uas hla tau teev tseg hauv Table 3, qhov twg cov kab uas hla sab nraud Variations muaj xws li bulges thiab kev nyuaj siab. Phab ntsa Thickness - Qhov tsawg kawg nkaus phab ntsa thickness ntsuas ntawm ib qho taw tes ntawm cov yeeb nkab steel, uas yuav tsum tsis txhob sib txawv los ntawm ntau tshaj 10% ntawm cov phab ntsa thickness. Qhov siab tshaj plaws phab ntsa thickness ntsuas ntawm txhua qhov chaw ntawm cov yeeb nkab steel, suav nrog tus nqi ntsuas ntawm qhov vuam, yuav tsum tsis txhob sib txawv ntau tshaj 10% ntawm cov phab ntsa thickness. Rau cov kav dej square thiab cov duab plaub, cov phab ntsa thickness yuav tsum tau txwv rau qhov nruab nrab.
Length - Cov yeeb nkab steel qauv tsim feem ntau yog qhov ntev tshaj li 1.5 meters, ntau yam lossis ruaj khov. Xa mus rau Ntu 4. Thaum tus neeg siv khoom qhia txog qhov ntev, qhov ntev txwv yuav tsum ua raws li cov cai ntawm Table 4.
Kev Ncaj Ncees - Qhov kev tso cai sib txawv hauv qhov ncaj ntawm cov kav dej steel yog 10.4 hli zaug 1/5 ntawm tag nrho qhov ntev ntawm cov yeeb nkab steel hauv meters.
Lub kaum sab xis - ob sab uas nyob ib sab ntawm lub square square steel yeeb nkab yuav tsum yog 90 degrees, thiab qhov siab tshaj plaws kev hloov pauv yuav tsum tsis pub tshaj 2 degrees.
