Q: Dab tsi yog qhov siv ntawm Q235b S355 h nqaj ASTM W6X9?A: Q235B, s355 h nqaj, thiab ASTM W6X9 yog txhua tus tsim rau cov ntawv thov cov kev thov uas muaj zog thiab cov teeb meem durability. ASTM W6X9 yog qhov tshwj xeeb "w {{{roov" (dav} flange buts thiab flange. Q235B (Suav qauv) thiab S355 (European Txujcab) yog cov qib ntau zaus siv los ua kom cov txiv neej H6X9) rau cov tib ntawv no. Ua ke, lawv tau siv nyob rau hauv cov haujlwm zoo li cov tuam tsev lag luam me me, lossis siv tau ib ntus {{{}} cov kabmob nqaj xav tau. Lawv cov kev tsim ruaj khov ua kom lawv tuaj yeem ua cov khoom zoo li qub (zoo li khaws cia) thiab cov khoom siv ko taw zoo li qub) tsis muaj khoov lossis poob. Txawm hais tias koj tsim tsev ntxiv lossis ib qho qauv muaj me me, cov kab teeb no muab cov qauv kev txhawb nqa.
Q: S355 sib txawv li cas los ntawm Q235B rau h nqaj kev ua tau zoo?A: S355 thiab Q235b sib txawv tshaj plaws hauv lub zog, ua rau lawv haum rau cov khoom siv sib txawv hauv h nqaj daim ntawv thov. Q235b yog ib qho me me roj carbon hlau nrog tsawg kawg vim muaj txiaj ntsig zoo ntawm 235 MPa, zoo meej rau lub teeb ntim lossis xav tias cov kab teeb me me. S355, los ntawm kev sib piv, yog qhov siab {{8} he}}}}}}}} - zaj dab neeg ua lub tsev kem. S355 kuj tau zoo dua qis - kub ceev, resrning cracking hauv huab cua txias, thaum q235b ua haujlwm zoo tshaj plaws hauv cov kub me. Ob qho tib si yog ruaj, tab sis S355 lub zog dua cia koj siv cov nqaj me me rau tib lub nra, txuag cov nqi thiab cov khoom siv cov khoom. Q235B tseem pheej yig dua, yog li nws zoo dua rau cov nyiaj siv nyiaj txiag nrog cov kev xav tau lub teeb xav tau. Qhov kev xaiv yog nyob ntawm seb hnyav npaum li cas rau koj lub H nqaj xav tau kev txhawb nqa.
Q: "ASTUM W6X9" txhais li cas rau lub h nqaj loj?A: "ASTM W6X9" yog qhov qauv tsim uas qhia koj qhov loj me thiab qhov hnyav ntawm qhov dav} flange h nqaj (w} nqaj). Tus "W" sawv ntsug rau "dav - flange," feem ntau hom qauv h nqaj hauv Astm cov qauv. Qhov "6" yog hais txog lub nqaj lub nominal qhov tob-}} txog 6 nti (152 mm) los ntawm sab saum toj mus rau hauv qab flange. Tus "9" txhais tau tias cov nqaj nyhav 9 phaus rau ib txoj kab nrig (13,4 kg / m). Tshaj li qhov tob thiab qhov hnyav, astm w6x9 tau tsau qhov chaw seem: nws cov flanges yog ~ 3.8 mm) dav thiab ~ 0.14 ntiv tes (3.6 hli) tuab. Cov xwm txheej zoo li no ua kom yooj yim rau kev npaj rau kev tsim kho rau kev tsim kho-}}}}} Koj paub raws li cas cov nqaj yuav coj thiab seb nws haum nrog lwm yam. Nws yog qhov loj me me rau me me rau nruab nrab cov phiaj xwm vim tias nws cov sib npaug muaj zog thiab kev sib cav.
Q: Yog Q235B H tws raws li ruaj raws li S355 rau qhov ntev- kev siv?A: Q235B H cis yog ruaj rau ntev-}}}}} Thaum S355 muaj ntau qhov xwm txheej rau cov mob hnyav lossis hnyav dua. Ob qib yog ua los ntawm cov roj carbon hlau muaj zog, yog li lawv tiv thaiv kev hnav thiab cov khoom siv sab hauv lossis cov chaw nyob hauv tsev) rau {5} {xyoo. Tab sis S355 lub zog dua thiab cov ntsiab lus tag nrho ua rau nws tiv taus kev qaug zog ntau (tawg los ntawm kev ua kom haum) thiab corrosion (thaum ua ke nrog kev kho mob xws li kev pleev xim). Piv txwv li, S355 h nqaj nyob rau sab nraum zoov kev lag luam (raug los nag lossis tshuab kev kub siab) tej zaum yuav xav tau hloov tom qab 20 xyoo. Q235b tseem ruaj rau lub teeb, nyob sab hauv tsev- zoo li cov kab hauv av nyob hauv av {16} Nws yuav tsis ntsib kev ntxhov siab heev. Nrog kev tu kom tsim nyog (piv txwv, tiv thaiv -}} muaj kev xaiv zoo heev rau ntev {} {Futy {futy} Lub luag haujlwm.
Q: Puas tuaj yeem ASTM W6x9 tau ua los ntawm ob qho Q235b thiab S355?A: Yog lawm, ASTM W6X9 (Qhov loj tsim) tuaj yeem tsim los ntawm Q235b thiab S355 ntau dua rau qhov no w} bar rau cov phiaj xwm thov. ASTM W6X9 yog hais txog lub nqaj tus duab (dav} flange, tsis muaj cov khoom siv sib txawv If you need an ASTM W6X9 for light loads (eg, a small porch), Q235B is a cost-effective option, as it meets the beam's basic strength requirements. Rau cov khoom ntim hnyav (piv txwv li, chaw nres tsheb nrog cov khoom siv hnyav), ib qho khoom siv ANTM), ib qho kev ua kom muaj zog yam tsis tau hloov lub nqaj loj-tseem ceeb yog tias muaj tsawg. Ob qho tib si ntawm W6X9 yuav muaj tib qhov ntev (qhov tob, flange dav, thickness) tab sis nyias louv muaj peev xwm. Koj tus neeg xa khoom tuaj yeem lees paub tias cov khoom siv (Q235b lossis S355) muaj rau ASTM W6X9 thiab pab koj xaiv raws li koj qhov project cov khoom siv thauj khoom.
Teeb 2: Thauj Muaj Peev Xwm & Daim Ntawv Thov haum
Q: Dab tsi yog qhov siab tshaj plaws load ASTM W6X9 (S355) tuaj yeem ua tau?A: Qhov siab tshaj plaws load ASTM W6X9 ua los ntawm S355 tuaj yeem coj yog nyob ntawm kev txhawb nqa) thiab nws tau zoo-}}}} txaus rau cov qauv me me. Rau ib txwm spep ntawm 6 ko taw (1.8 meters), cov nqaj tuaj yeem pab txhawb nqa ib qho kev hloov pauv ntawm cov rooj tog lossis cov chaw muag khoom me me uas muaj cov thawv. Yog hais tias span shortens mus rau 4 ko taw (1.2 meters), lub peev txheej nce mus rau ~ 5,000-5,500 lbs (22.5 kn), ua rau nws haum rau chav nres tsheb hnyav. Xav tau ntau dua (8 feet / 2.4 metres), lub peev xwm poob rau ~ 1,200-1,500 lbs (5.4-6), yog li nws zoo dua rau lub teeb ntsaws zoo li lub ce ntov kev txhawb nqa. Cov naj npawb no kwv yees li qub (tsis - txav) thauj khoom; Yog hais tias lub nqaj ntsej muag yeej siv zog (piv txwv li, cov khoom siv tsheb ciav hlau lossis cov khoom siv txav mus los ntawm 10-15% rau kev nyab xeeb. Yuav tsum tau sab laj tus kws ua tswv cuab los xam cov khoom siv rau koj qhov project, tab sis S355 Astm W6X9 tseem txhim khu kev qha rau feem ntau {2 42 LOADE} POV THAWJ xav tau.
Q: Yog Q235B H Beam zoo rau thaj chaw fram?A: Yog, Q235B h nqaj (suav nrog ntau li ASTM w6x9) yog qhov zoo tshaj plaws rau cov khoom lag luam hauv tsev thiab nqis rau DIY lossis kev ua haujlwm. Chaw nyob hauv plag plag tsev feem ntau yuav tsum tau txhawb nqa ~ 40-50 lbs ib square foot (1968 kg) rau chav pw {}}} 1}} Ib tus Q235B H tseem zoo ib yam li ASTM W6X9 (6-nti qhov tob, 9 lbs / ft) ua haujlwm rau pem teb 6-8-24 meters), uas yog ib txwm muaj nyob hauv feem ntau lub tsev. Nws yog lub teeb yuag txaus los thauj thiab nruab yam tsis muaj cov tshuab siv hnyav, txuag cov nqi zog. Q235b kuj muaj kev weldability zoo, yog li koj tuaj yeem txuas nws mus rau hauv pem teb joists lossis kab nrog cov cuab yeej txheem. Tsis zoo li cov kab teeb ntoo, Q235B h Beams tsis warp, rot, lossis nyiam cov kab tsuag, yog li lawv siv sijhawm ntev dua. Rau cov chaw nyob hauv qab no, Q235B h nqaj sib npaug kev ua tau zoo, raug nqi, thiab yooj yim ntawm kev siv zoo kawg nkaus.
Q: Tau S355 H Bean Hloov Astm W6x9 rau cov khoom hnyav hnyav?A: Yog lawm, S355 h nqaj tuaj yeem hloov astm w6x9 rau cov roj hnyav heev {}} ntau zaus, ua tsaug rau S355 lub zog siab dua. ASTM W6X9 yog qhov loj me (6 - nti qhov tob, koj tuaj yeem siv lub qhov loj me (piv txwv li, w8x10 lossis W10x12) los lis qhov hnyav dua. Piv txwv li, yog Asm W6x9 (S355) tuaj yeem txhawb 2,500 lbs ntau tshaj 6 feet, ib qho loj s355 h nqaj (W8x10) tuaj yeem txhawb nqa ~ 4,000 LBS dhau tib yam. Txawm hais tias koj khaws tib qhov tob raws li W6X9, S355 h nqaj nrog me ntsis thicker flanges yuav outtorm a q235b ittm w6x9. Hloov nrog S355 yog qhov zoo dua yog tias koj lub phiaj xwm thauj tau tshaj Astm W6X9 lub peev xwm zoo li ntxiv cov chaw nres tsheb lossis nthuav dav lub tsev khaws khoom lag luam. Tsuas yog xyuas qhov loj dua S355 h Beam loj haum rau koj qhov chaw (qhov siab, dav) thiab tias koj cov kev txhawb nqa (kab ntawv) tuaj yeem ua qhov hnyav ntxiv. Tus kws ua choj tuaj yeem pab phim rau S355 h tw loj rau koj cov kev xav tau hnyav-thauj khoom.
Q: Dab tsi SPANE muaj kev nyab xeeb rau ASTM W6X9 (Q235B) hauv kev siv qauv txheej txheem?A: Kev Nyab Xeeb Kev Nyab Xeeb rau ASTM W6X9 ua los ntawm Q235b nyob ntawm seb hom kev thauj khoom, tab sis nws feem ntau yog li ntawm 4 mus rau 10 meters) rau cov qauv tsim nyog. Rau lub teeb, uniform loads (piv txwv li, tsis muaj qab hau los yog tsis {}}}}} Cov kab ke rau cov kab sib txawv me me lossis sab hauv chav sib dividers me me. Rau nruab nrab loads (piv txwv li nyob hauv pem teb joists nrog cov rooj tog zaum), kev nyab xeeb poob rau 6-8-2,8 meters) los tiv thaiv dabtsi yog khoov lossis sagging. Rau cov khoom ntim hnyav (piv txwv, chav nres tsheb sib dhos nrog cov cuab yeej), khaws cov Spanish nyob rau hauv 4-5 feet (1.2-1.5 meter) kom ntseeg tau tias lub nqaj tsis tshaj nws cov txiaj ntsig muaj zog. Cov lus qhia no xav tias lub nqaj tau txais kev txhawb nqa ntawm ob qho kawg los ntawm cov kab mob lossis phab ntsa; Yog tias kev txhawb nqa tau txwv (piv txwv li, tsuas yog ib qho kawg tsau), txo cov lus luv los ntawm 30-40%. Nco ntsoov xyuas cov cim hauv tsev hauv zos, raws li qee thaj chaw muaj cov kev txwv luv luv rau cov chaw nyob lossis kev lag luam siv. Q235B ASTM W6X9 yog hloov tau yooj yim, tab sis nyob hauv cov kev sib tw no ua rau koj tus qauv muaj kev nyab xeeb.
Q: Cov no yog cov nqaj (Q235b, S355, W6X9) Zoo rau cov tsev lag luam me me?A: Yog, Q235B, S355 H nqaj, thiab ASTM W6X9 yog txhua qhov chaw ua lag luam me me, lossis lub zog hauv zos, nqi, thiab chaw ua haujlwm. ASTM W6X9 (hauv Q235B lossis S355) ua haujlwm rau sab hauv qab teb, xws li faib cov phab ntsa lossis qab nthab (6 {} nti qhov tob) tsis txhob siv ntau lub taub hau. Q235B H tws yog qhov zoo tshaj plaws rau lub teeb ua lag luam, xws li cov rooj tog zaum lossis chaw ua haujlwm me me, ua kom cov nqi siv khoom qis. S355 H Beams kov cov khoom lag luam HVAC uas muaj kev lag luam hvac nyob rau hauv ru tsev lossis cov chaw khaws khoom loj hauv cov khoom noj rov qab. Tag nrho cov nqaj hlau tau ruaj khov kom tiv taus txhua hnub ua lag luam (cov khoom siv ko taw) thiab ua kom haum lub tsev rau cov qauv lag luam kev lag luam me me. Lawv kuj yooj yim rau kev sib sau nrog lwm cov ntaub ntawv (phab ntsa, ua vaj tse) thiab nrawm rau nruab, txo lub sijhawm. Rau cov tsev lag luam me me, cov teeb ha pas muab cov kev ntseeg siab lug uas koj xav tau yam tsis muaj feem ntau ntawm cov qib tsheb.
Teeb 3: Durability & Txij Nkawm
Q: Yuav ua li cas Q235b thiab S355 H Beams tuav hauv chaw ntub dej?A: Q235B thiab S355 H tws tuaj yeem tuav hauv cov chaw ntub dej uas ntub dej (tib yam nyob hauv qab) nrog kev tiv thaiv sab nraud) nrog S355 muaj cov khoom zoo me ntsis. Ob qho tib si yog cov hlau hlau, yog li lawv yuav xeb yog tias nthuav tawm kom muaj noo noo yam tsis muaj kev kho. Q235B yog hlau me me, yog li nws rusts sai- Tsis tau kho, nws yuav tshwm sim nto xeb hauv 3-6 lub hlis hauv thaj chaw ntub dej. S355 muaj alloying ntsiab (zoo li manganese) uas qeeb rowing, yog li nws tuaj yeem nyob rau 6-12 lub hlis tsis kho. Txhawm rau ncua lawv lub neej, thov ob qho li no-}} Cov huab cua tsis txaus ntseeg:}-}}}}}}}}}}} Rau thaj chaw ntub dej ntub dej (piv txwv li, nyob ze ntawm phab ntsa lossis sab nrauv phab ntsa), siv kub} dip galvanizing: a zinc txheej uas thaiv cov hlau los ntawm noo noo, kav ntev li cas 15-20 xyoo. Kev tu tsis tu ncua (kuaj xyuas kom cov xim chipped, tu tawm pwm) kuj tseem pab {{27} kov khawb hauv txheej tam sim ntawd kom tiv thaiv xeb tam sim ntawd. Nrog kev tu kom zoo, ob qho Q235B thiab S355 h cis ua tau zoo nyob rau hauv ib puag ncig ntub dej.
Q: Ua ASTM W6X9 H BE BET xav tau kev tu ib txwm?A: ASTM w6x9 h cis tsis xav tau tu nquag nquag, tab sis cov tshev pib thiab upkeep yuav ua rau lawv ruaj khov rau kaum xyoo. Rau kev siv nyob sab hauv (piv txwv li cov plag tsev nyob hauv tsev lossis chaw ua haujlwm ua haujlwm ib xyoos ib zaug Yog tias koj pom cov xim tsis sib xws (ntawm cov nqaj nqaj), kov nws nrog cov xim sib piv los tiv thaiv xeb. Rau sab nraum zoov lossis ntub cov kev siv sab hauv tsev (piv txwv li, twv kom muaj xeb, tshwj xeeb yog ib puag ncig peb, thiab ntxuav tawm cov dej noo lossis cov khib nyiab. TAWM XEEM ROLTS LOS YOG {{{{}} weld wquet sib txuas raws li xav tau. Yog hais tias lub nqaj yog galvanized, koj tsis tshua muaj yuav tsum tau ua ntau dua li so tawm av - galvanization tsis kam ua xeb ntawm nws tus kheej. Zam kev thauj khoom hnyav dhau ntawm nqaj lub peev xwm (txawm tias ib ntus), vim qhov no tuaj yeem ua qhov kev sib tw tas mus li. Nrog cov kauj ruam yooj yim no, astm w6x9 h tws yuav nyob rau hauv cov kev mob zoo yam tsis muaj kev ua haujlwm tas li.
Q: Yog s355 h nqaj ntau dua Q235B rau high- chaw tsheb?A: Yog, s355 h tw yog ntau ruaj dua Q235B rau highways, Garage cov tsheb khiav mus) vim tias nws lub zog ua haujlwm thiab nkees ua yeeb yam. Siab - cov tsheb khiav tawm cov teeb me me (piv txwv li cov tsheb nqaj hlau) uas tuaj yeem ua rau "mob nkees} Q235B cov txiaj ntsig qis zog zog (235 MPa) ua rau nws xav ntau dua rau kev qaug zog, nws yuav tsim cov nyom me me lossis tawg. S355 lub zog tshaj tawm lub zog (355 MPa) thiab alloy cov ntsiab lus cia nws siv cov laub uas tsis muaj kev puas tsuaj; Nws tiv taus kev nkees 2-3 zaug zoo dua Q235b. Piv txwv li, S355 h nqaj hauv cov khw muag khoom tsis khoom muaj peev xwm kav ntev, thaum muaj teeb meem Q235b nyob rau hauv tib qho chaw yuav xav tau tshuaj xyuas kev qaug zog tom qab 10-15 xyoo. S355 kuj tseem tau tuav tau zoo dua rau kev cuam tshuam tsis zoo (piv txwv li, lub thawv lossis ib lub laub tsoo lub nqaj) tsis muaj kev dai khaub ncaws. Rau siab - cov chaw tsheb khiav, S355 H Tsoo qhov kev xav tau ntawm kev kho thiab txuas ntxiv tus qauv lub neej.
Q: Ntev npaum li cas cov h cis kawg nyob rau hauv cov txheej txheem sab hauv tsev?A: Cov kab laum Hooj (Q235b, S355, ASTM W6X9) Next 30-50 xyoo nyob rau hauv kev saib xyuas sab hauv tsev rau cov tsev ua hauj lwm ntev rau tsev lossis vaj tse. Sab hauv tsev qhov teeb los ntawm nag, ntsev, thiab huab cua sov heev, yog li xeb thiab hnav qeeb. Q235B H tws, Thaum pleev xim lossis sab laug tsis muaj qhov chaw nyob hauv chav tsev qhuav (piv txwv li, chav ua haujlwm), tuaj yeem kav 30-40 xyoo. S355 H cis, nrog lawv lub zog zoo dua thiab corrosion tsis kam, kawg 40-50 xyoo- Txawm nyob hauv cov chaw ntub dej zoo li cov hauv paus (nrog cua ntub dej). ASTM W6X9, tsis hais cov khoom siv, ua raws tib lub neej raws li nws qib (Q235b lossis S355) vim tias nws loj tsis cuam tshuam ntev ntev. Tus yuam sij rau ntau lifespan yog zam dhau kev thauj khoom ntau (tsis txhob nce lub teeb lub peev xwm thaum ntxov (piv txwv li, kov cov xim xoob). Nyob rau hauv zoo {{29} tswj cov chaw sab hauv tsev, cov teeb no feem ntau ua rau cov tsev lawv nyob hauv, ua rau lawv xaiv tau txoj kev ntseeg siab rau ntev} 30}} xyoo qauv.
Q: Kuv puas tuaj yeem pleev xim Q235B / s355 h nqajs los txhim kho durability?A: Yog lawm, pleev xim Q235B thiab S355 H nqaj yog ib txoj hauv kev yooj yim thiab muaj txiaj ntsig zoo los txhim kho lawv cov xeb thiab hnav. Pib nrog kev npaj saum npoo: ntxuav cov nqaj nrog cov hlau txhuam kom tshem tawm cov av, xeb, lossis roj} qhov no ua kom pom cov xim zoo nkauj zoo. Rau cov nqaj tshiab, so lawv nrog cov kuab tshuaj (zoo li acetone) kom tshem tawm cov roj Hoobkas. Tom ntej no, thov lub siab - zoo - rictes} Ricy} Kev nplua nuj, noo noo, nres xeb ua ntej nws pib. Thaum cov chaw tsim khoom tsim qauv no (ua raws li cov chaw tsim khoom), siv cov xim topcoat {}} looj rau sab hauv tsev lossis hnyav} {} siv cov chaw. Lub topcoat ntxiv kev tiv thaiv ntxiv thiab cia koj phim cov nqaj mus rau koj qhov chaw tsim.
