Ntau yam thiab specifications ntawm steel

I. Hlau Phaj thiab Sawb
Hlau phajyog muab faib ua tuab steel phaj, nyias steel phaj thiab ca steel, nws specifications nrog lub cim "a" thiab dav x thickness x ntev nyob rau hauv millimeters. Xws li: ib tug 300x10x3000 tias qhov dav ntawm 300mm, thickness ntawm 10mm, ntev ntawm 3000mm steel phaj.

Thick steel phaj: thickness ntau dua 4 hli, dav 600 ~ 3000mm, ntev 4 ~ 12m.
Nyias steel phaj: thickness tsawg dua 4 hli, dav 500 ~ 1500mm, ntev 0.5 ~ 4m.
Pav ca hlauThickness 4 ~ 60mm, dav 12 ~ 200mm, ntev 3 ~ 9m.
Hlau daim hlau thiab strips yog categorized raws li txoj kev dov:txias dov daim hlauthiabkub dov daim hlau; Raws li cov thickness: nyias steel daim hlau (hauv qab 4 hli), tuab hlau daim hlau (4-60mm), daim hlau tuab ntxiv (siab dua 60mm)

2. kub dov hlau
2.1Kuv-beam
I-beam steel raws li nws lub npe qhia, yog I-shaped cross-section profiles, sab sauv thiab sab flanges yog flush.
I-beam steel yog muab faib ua dog dig, lub teeb thiab tis dav ntawm peb hom, nrog rau lub cim "ua hauj lwm" thiab tus naj npawb ntawm hais. Tus lej twg sawv cev rau ntu qhov siab ntawm tus lej ntawm centimeters. 20 thiab 32 saum toj no zoo tib yam I-beam, tib tus lej thiab muab faib ua a, b thiab a, b, c hom, nws lub web thickness thiab flange dav yog feem ntau incremental 2 hli. xws li T36a uas hla ntu qhov siab ntawm 360 mm, lub web thickness ntawm ib chav kawm ntawm zoo tib yam I-beam. I-beams yuav tsum tau sim siv lub thinnest web thickness ntawm hom a, uas yog vim nws lub teeb yuag, thaum lub sij hawm cross-section ntawm inertia kuj loj.
Lub sijhawm ntawm inertia thiab lub vojvoog ntawm gyration ntawm I-beams nyob rau hauv qhov dav kev taw qhia yog ntau me dua cov nyob rau hauv qhov siab qhov siab. Yog li, muaj qee qhov kev txwv hauv daim ntawv thov, feem ntau tsim nyog rau cov tswv cuab ntawm ib txoj kev khoov.
3.channel hlau
Channel steel tau muab faib ua ob hom zoo tib yam channel steel thiab lub teeb yuag channel steel. Channel steel hom nrog lub cim "[" thiab tus naj npawb ntawm hais. Ib yam nrog I-nqaj, tus naj npawb ntawm centimeters kuj sawv cev rau qhov siab ntawm ntu ntu, xws li [20 thiab Q [20 feem, sawv cev ntawm ntu qhov siab ntawm 200mm ntawm tib lub channel steel thiab lub teeb channel steel. Kuv-beam.

 

4. kaum steel
Lub kaum sab xis steel tau muab faib ua ob hom ntawm lub kaum sab xis steel thiab lub kaum sab tsis sib npaug.
Lub kaum sab xis: nws qhov sib npaug ntawm ob sab ceg ntawm qhov sib npaug ntawm qhov ntev, nws cov qauv nrog lub cim "L" thiab limb dav x limb thickness hauv millimeters, xws li L100x10 rau lub limb dav ntawm 100mm, limb thickness ntawm 10mm equilateral lub kaum sab xis.
Lub kaum sab xis tsis sib xws: nws qhov sib npaug ntawm ob txhais ceg tsis sib npaug, tus qauv nrog lub cim "" thiab ntev limb dav x luv limb dav x limb thickness hauv millimeters, xws li L100x80x8 rau qhov ntev limb dav ntawm 100mm, luv luv limb dav ntawm 80mm, limb thickness ntawm 8mm lub kaum sab xis tsis sib npaug.

 
5. H-beam(dov thiab welded)
H-beam txawv ntawm I-beam.
(1) dav flange, yog li muaj ib tug dav flange I-beam hais.
(2) Sab hauv ntawm lub flange tsis tas yuav muaj txoj kab nqes, sab sauv thiab sab qis yog qhov sib npaug.
(3) los ntawm daim ntawv ntawm cov khoom faib, I-beam cross-section ntawm cov khoom yog feem ntau yog concentrated nyob rau hauv lub web ncig, qhov ntau mus rau sab ntawm lub extension, lub steel tsawg dua, thiab dov H-beam, cov khoom faib tsom rau ntawm ntug ntawm ib feem.
Vim li no, H-beam cross-section yam ntxwv yog pom tseeb zoo dua rau kev ua haujlwm ib txwm muaj, channel, lub kaum sab xis thiab lawv cov kev sib txuas ntawm cov ntu ntu, kev siv cov txiaj ntsig zoo dua.
Raws li lub teb chaws tus qauv tam sim no "kub dov H-beam thiab seem T-beam" (GB / T11263-2005), H-beam muab faib ua plaub pawg, uas tau xaiv raws li hauv qab no: dav flange H-beam - HW (W rau Wide English prefix), specifications ntawm 100mmx100mm ~ 400mmx; nruab nrab flange H-beam - HM (M rau Middle English prefix), specifications ntawm Specification los ntawm 150mmX100mm ~ 600mmX300mm: Narrow Cui-ntug H-beam - HN (N rau Narrow English prefix); thin-walled H-beam - HT (T rau Thin English prefix). H-beam specification marking yog siv: H thiab tus nqi ntawm qhov siab ntawm h tus nqi x qhov dav ntawm b tus nqi x tus nqi ntawm lub thickness ntawm lub web t nqi x tus nqi ntawm lub thickness ntawm lub flange t2 tus nqi hais. Xws li H800x300x14x26, uas yog, rau seem qhov siab ntawm 800mm, flange dav ntawm 300mm, web thickness ntawm 14mm, flange thickness ntawm 26mm H-beam. Los yog qhia ua ntej nrog cov cim HWHM thiab HN hais H-beam qeb, ua raws li "qhov siab (mm) x dav (mm)", xws li HW300x300, uas yog, ntu qhov siab ntawm 300mm, flange dav ntawm 300mm dav flange H-beam.
6. T-beam
Sectional T-beam (Daim duab) muab faib ua peb pawg, cov cai yog raws li nram no: dav flange ib feem ntawm T-beam - TW (W rau Wide English taub hau); nyob rau hauv flange ib feem ntawm T-beam - TM (M rau Middle English lub taub hau); nqaim flange ib feem ntawm T-beam - TN (N rau Narrow English taub hau). Sectional T-beam los ntawm qhov sib thooj H-beam raws nruab nrab ntawm lub vev xaib sib npaug sib faib ua. Sectional T-beam specifications cim nrog: T thiab qhov siab h tus nqi x dav b nqi x web thickness t nqi x flange thickness t nqi. Xws li T248x199x9x14, uas yog, rau seem qhov siab ntawm 248mm, tis dav ntawm 199mm, web thickness ntawm 9mm, flange thickness ntawm 14mm T-beam. Nws kuj tseem tuaj yeem siv nrog H-nqaj piv txwv, xws li TN225x200 uas yog, ntu qhov siab ntawm 225mm, flange dav ntawm 200mm nqaim flange seem T-beam.

7.structural steel yeeb nkab
Cov yeeb nkab steel yog ib qho tseem ceeb ntawm cov khoom siv hlau thiab hlau, vim nws cov txheej txheem tsim khoom thiab cov duab ntawm cov yeeb nkab siv hauv qhov sib txawv tsis zoo thiab muab faib uaseamless steel yeeb nkab(raws li qhov tsis zoo) thiabwelded steel yeeb nkab(phaj, nrog phem) ob pawg, saib daim duab.
Cov qauv hlau feem ntau siv rau hauv cov yeeb nkab kub dov seamless steel yeeb nkab thiab welded steel yeeb nkab, welded steel yeeb nkab dov thiab welded los ntawm steel sawb, raws li qhov loj ntawm cov yeeb nkab txoj kab uas hla, thiab muab faib ua ob hom ncaj seam vuam thiab kauv vuam.LSAW steel yeeb nkabspecifications rau sab nraud txoj kab uas hla ntawm 32 ~ 152 hli, phab ntsa thickness ntawm 20 ~ 5.5 hli. Lub teb chaws tus qauv rau "LSAW steel yeeb nkab" (GB/T13793-2008). Tus qauv seamless steel yeeb nkab raws li lub teb chaws tus qauv "cov qauv seamless steel yeeb nkab" (GB / T8162-2008), muaj ob hom kub dov thiab txias-draw, txias-draw yeeb nkab yog txwv rau me me yeeb nkab txoj kab uas hla, kub dov seamless steel yeeb nkab sab nraud txoj kab uas hla ntawm 32 ~ 630mm, phab ntsa thickness 25.5 ~ 7.
Specifications sab nraud txoj kab uas hla x phab ntsa thickness (mm), xws li φ102x5. Welded steel yeeb nkab yog khoov thiab welded los ntawm steel sawb, tus nqi kuj tsawg. Hlau yeeb nkab hla ntu symmetry qhov muag cheeb tsam faib yog tsim nyog, lub sij hawm ntawm inertia nyob rau hauv tag nrho cov lus qhia thiab lub vojvoog ntawm gyration yog tib yam thiab loj, yog li ntawd cov kev ua tau zoo ntawm cov quab yuam, tshwj xeeb tshaj yog thaum lub axial siab zoo dua, thiab nws nkhaus puab ua rau nws tsis tshua muaj zog cua, vuag, dej khov, tab sis tus nqi yog kim dua thiab cov qauv kev twb kev txuas yog feem ntau complex.