Khoom Siv Khoom: Q235 vs Q345
Q235 Carbon Angle Steel: Raws li kev siv dav dav dav - lub hom phiaj steel qib raws li GB / T 700, Q235 nthuav tawm qhov tsawg kawg nkaus lub zog ntawm 235 MPa thiab lub zog tensile xws li 375 MPa txog 500 MPa. Nws cov ductility zoo heev (elongation tus nqi ntau dua lossis sib npaug li 26%) tso cai rau kev yooj yim, xws li khoov thiab txiav, tsis muaj kev tawg. Qib no tau sib xws nrog ntau yam txheej txheem vuam (piv txwv li, arc vuam, roj hlau arc vuam) thiab yog qhov zoo tagnrho rau cov ntawv thov uas nruab nrab lub zog thiab tus nqi -kev ua tau zoo yog qhov tseem ceeb.
Q345 Carbon Angle Steel: Muab faib ua lub siab -lub zog qis- alloy (HSLA) steel nyob rau hauv GB / T 1591, Q345 muab kev ua haujlwm zoo dua qub nrog lub zog qis kawg ntawm 345 MPa thiab lub zog tensile ntawm 470 MPa txog 630 MPa. Nws muaj cov kab sib xyaw ua ke (piv txwv li, manganese, silicon, vanadium) uas txhim kho nws cov tawv tawv, qaug zog tiv thaiv, thiab corrosion kuj piv rau Q235. Qib no tuav cov weldability zoo heev thiab machinability thaum muaj peev xwm tiv taus kev ntxhov siab ntau dua thiab ua haujlwm hnyav, ua rau nws haum rau hnyav -cov haujlwm ua haujlwm.
Peb Q235 / Q345 me me steel lub kaum ntse ntse ua raws li nruj me ntsis kam rau ua raws li cov qauv thoob ntiaj teb (xws li GB / T 706, ISO 707). Lawv muaj nyob rau hauv ntau yam kev qhia tshwj xeeb: ceg ntev ntawm 25mm × 25mm txog 200mm × 200mm, thiab thicknesses ntawm 3mm mus rau 24mm. Customized ntau thiab tsawg kuj tuaj yeem muab tau los ua kom tau raws li cov kev cai tshwj xeeb ntawm cov haujlwm tshwj xeeb, ua kom muaj qhov zoo meej haum rau ntau hom qauv tsim.
Qhov Zoo Tshaj Plaws
Superior Structural Stability: L-zoo li tus ntoo khaub lig-section muab lub sijhawm loj ntawm inertia, txhim kho lub bar tiv thaiv kev khoov thiab torsion, uas yog ib qho tseem ceeb rau kev tswj cov qauv kev ncaj ncees hauv kev thauj khoom-cov ntaub ntawv kabmob.
Exceptional Weldability thiab Machinability: Cov hlau me me tso cai rau kev sib txuas tsis sib haum nrog lwm cov khoom siv hlau, thaum cov qauv zoo li qub (los ntawm kub dov) ua kom yooj yim txiav, drilling, thiab shaping yam tsis muaj kev puas tsuaj rau cov khoom.
Tus nqi-Kev ua tau zoo: Piv rau siab- alloy steels, Q235 thiab Q345 lub kaum sab xis muaj kev ua tau zoo ntawm tus nqi pheej yig dua, txo cov nqi tag nrho yam tsis muaj kev cuam tshuam zoo.
Corrosion Resistance with Protective Treatments: Thaum coated nrog galvanization, epoxy painting, los yog hmoov txheej, lub kaum sab xis tuav muaj zog tiv thaiv xeb thiab ib puag ncig yaig, ncua lawv cov kev pab cuam lub neej nyob rau hauv sab nraum zoov los yog ib puag ncig ntub.
Dav Kub Adaptability: Ob qib tswj cov khoom ruaj khov nyob rau hauv qhov kub ntawm -40℃txog 350 degree, ua rau lawv haum rau siv nyob rau hauv hnyav huab cua puag thiab muaj ib puag ncig nrog kub hloov pauv.
Tej kev siv
Cov L-cov duab me me steel lub kaum sab xis pom kev siv dav hauv ntau qhov kev lag luam:
Kev Tsim Kho Kev Lag Luam: Siv rau hauv lub tsev thav duab, lub ru tsev russes, pem teb joists, stair stringers, thiab handrails, muab cov qauv kev txhawb nqa thiab kev ruaj ntseg rau cov tsev nyob, kev lag luam, thiab cov tsev lag luam.
Mechanical Engineering: Ua hauj lwm raws li brackets, kev txhawb nqa, thiab cov hauv paus rau cov tshuab, xws li twj, compressors, thiab conveyor systems, xyuas kom cov cuab yeej tseem ruaj ntseg thaum ua haujlwm.
Infrastructure Projects: Siv rau hauv kev tsim cov choj, txoj kev loj, kev tsheb ciav hlau, thiab lub zog xa hluav taws xob, qhov chaw muaj zog thiab kav ntev yog qhov tseem ceeb rau kev tiv thaiv hnyav thiab kev cuam tshuam ib puag ncig.
Kev Lag Luam Fabrication: Siv nyob rau hauv kev tsim cov racks, txee, steel txee, thiab cov chaw ua haujlwm, ua tsaug rau lawv qhov yooj yim ntawm kev sib dhos thiab muaj peev xwm txhawb nqa hnyav hnyav.
Automotive thiab Shipbuilding Industries: Siv los ua cov khoom siv ntxiv hauv lub tsheb chassis, nkoj hulls, thiab trailer thav duab, txhim kho cov txheej txheem nruj thiab kev nyab xeeb ntawm cov tsheb thauj mus los.
Tag nrho peb cov Q235 / Q345 carbon lub kaum sab xis steels tau ua tiav cov txheej txheem tswj kom zoo thoob plaws hauv cov txheej txheem tsim khoom, los ntawm kev sim cov khoom siv raw ( tshuaj lom neeg muaj pes tsawg leeg kev tshuaj xyuas, kev tshuaj xyuas cov khoom siv cuab yeej cuab tam) mus rau qhov kawg ntawm kev tshuaj xyuas cov khoom (kev ntsuas qhov ntev, kev kuaj xyuas qhov zoo). Qhov no ua kom ntseeg tau tias txhua lub kaum sab xis ua tau raws li lossis tshaj li cov qauv kev lag luam uas xav tau, xa cov kev ua tau zoo thiab kev ntseeg siab. Txawm hais tias rau me me -scale fabrication tej yaam num los yog loj -scale infrastructure kev loj hlob, peb Q235/Q345 me me steel lub kaum sab xis tuav nrog L-shape seem yog qhov kev xaiv zoo tshaj plaws rau engineers thiab manufacturers nrhiav high-zoo, nqi{10}}cov qauv kev daws teeb meem.
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Khoom |
Steel Lub kaum sab xis Bar |
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Txuj |
GB ASTM, JIS, SUS, DIN, EN thiab lwm yam |
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Thickness |
0.8mm - 25 hli |
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Dav |
25mm * 25mm-200mm * 125mm / 50mm * 37mm-400mm * 104mm |
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Ntev |
1m - 12m , lossis raws li koj qhov kev thov. |
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Cov duab |
Sib npaug |
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Kev siv |
Mechanical & Manufacture, Steel strcuture, Shipbuilding, Bridging, Tsheb Chassis. |
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Kev lag luam loj |
Middle East, Africa, Asia thiab qee lub tebchaws Uropean, Asmeskas, Australia, thiab lwm yam. |
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Txheej txheem txheej txheem |
Cold Drawn, Kub Rolled, Khoov, Vuam |
| Sectional zog thiab theoretical hnyav ntawm kub - dov lub kaum sab xis steel | ||||||||||||||||
| Loj (mm) | CSA | Theoretical Nyhav | chaw | sib xws | tiv…wx | Radius ntawm gyration | Ob lub kaum sab xis steel tig vojvoog…iy…(cm) | |||||||||
| Qhov dav dav | tis | lub vojvoog | A | y0 | Ix | MAX | MIN | ib ix | iu | ib iv | ib (mm): | |||||
| b | t | R | (cm2) | kg/m | (cm) | cm4 ua | cm3 ua | cm | cm | cm | 0 | 6 | 8 | 10 | 12 | |
| 20 | 3 | 3.5 | 1.13 | 0.89 | 0.60 | 0.40 | 0.66 | 0.29 | 0.59 | 0.75 | 0.39 | 0.85 | 1.08 | 1.17 | 1.25 | 1.34 |
| 4 | 1.46 | 1.15 | 0.64 | 0.50 | 0.78 | 0.36 | 0.58 | 0.73 | 0.38 | 0.87 | 1.11 | 1.19 | 1.28 | 1.37 | ||
| 25 | 3 | 3.5 | 1.43 | 1.12 | 0.73 | 0.82 | 1.12 | 0.46 | 0.76 | 0.95 | 0.49 | 1.05 | 1.27 | 1.36 | 1.44 | 1.53 |
| 4 | 1.86 | 1.46 | 0.76 | 1.03 | 1.34 | 0.59 | 0.74 | 0.93 | 0.48 | 1.07 | 1.30 | 1.38 | 1.43 | 1.55 | ||
| 30 | 3 | 4.5 | 1.75 | 1.37 | 2.85 | 1.46 | 1.72 | 0.68 | 0.91 | 1.15 | 0.59 | 1.27 | 1.47 | 1.55 | 1.63 | 1.71 |
| 4 | 2.28 | 1.79 | 0.89 | 1.84 | 2.08 | 0.87 | 0.90 | 1.13 | 0.58 | 1.26 | 1.49 | 1.57 | 1.65 | 1.74 | ||
| 36 | 3 | 4.5 | 2.11 | 1.66 | 1.00 | 2.58 | 2.59 | 0.99 | 1.11 | 1.39 | 0.71 | 1.49 | 1.70 | 1.78 | 1.86 | 1.94 |
| 4 | 2.76 | 2.16 | 1.04 | 3.29 | 3.18 | 1.28 | 1.09 | 1.38 | 0.70 | 1.51 | 1.73 | 1.80 | 1.89 | 1.97 | ||
| 5 | 3.38 | 2.65 | 1.07 | 3.95 | 3.68 | 1.56 | 1.08 | 1.36 | 0.70 | 1.52 | 1.75 | 1.83 | 1.91 | 1.99 | ||
| 40 | 3 | 5 | 2.36 | 1.85 | 1.09 | 3.59 | 3.28 | 1.23 | 1.23 | 1.55 | 0.79 | 1.65 | 1.86 | 1.94 | 2.01 | 2.09 |
| 4 | 3.09 | 2.42 | 1.13 | 4.60 | 4.05 | 1.60 | 1.22 | 1.54 | 0.79 | 1.66 | 1.88 | 1.96 | 2.04 | 2.12 | ||
| 5 | 3.79 | 2.98 | 1.17 | 5.53 | 4.72 | 1.96 | 1.21 | 1.52 | 0.78 | 1.68 | 1.90 | 1.98 | 2.06 | 2.14 | ||
| 45 | 3 | 5 | 2.66 | 2.09 | 1.22 | 5.17 | 4.25 | 1.58 | 1.39 | 1.76 | 0.90 | 1.85 | 2.06 | 2.14 | 2.21 | 2.29 |
| 4 | 3.49 | 2.74 | 1.26 | 6.65 | 5.29 | 2.05 | 1.38 | 1.74 | 0.89 | 1.87 | 2.08 | 2.16 | 2.24 | 2.32 | ||
| 5 | 4.29 | 3.37 | 1.30 | 8.04 | 6.20 | 2.51 | 1.37 | 1.72 | 0.88 | 1.89 | 2.10 | 2.18 | 2.26 | 2.34 | ||
| 6 | 5.08 | 3.99 | 1.33 | 9.33 | 6.99 | 2.95 | 1.36 | 1.71 | 0.88 | 1.90 | 2.12 | 2.20 | 2.28 | 2.36 | ||
