HRB400 Lub ntsiab lus?

Steel Rebars hrb400 txhais li cas? Yuav xaiv Rebar li cas?

PAB 400Suav lub npe yog kub dov ribbed bar, txoj kab uas hla yog 6 ~ 100mm. Lub teb chaws yuav tsum muaj tus qauv GB1499.2 -- 2007 "cov pob zeb txuas ntxiv nrog kub dov ribbed bar" txij lub Peb Hlis 1, 2008 tau pib siv. Tus qauv yield zog ntawm steel bar HRB400 yog 400MPa, thiab tus nqi tsim yog 360MPa.

1, HRB yog tus nqi hardness, txhais tau tias kub-Rolled ribbed -steel Bar Kub dov Ribbed bar, yog hais txog Rockwell hardness ntsuas (HR) chav kawm B nplai, sawv cev rau qhov hardness ntawm cov hlau tau ntsuas ntau npaum li cas HRB, tus lej tom qab yog lub zog ntawm qhov bar.

2, Qib Thib Peb Rebars (HRB400 saum toj no) kuj yog threaded Steel Rebars, zoo ib yam li lub cheeb ntawm Qib Thib Ob Steel Rebars, muaj zog dua, tab sis tus nqi kuj siab, tau maj mam nce.

3. Secondary steel bar (HRB335) yog threaded steel bar, txoj kab uas hla ntawm 12-25 yog feem ntau siv nyob rau hauv kab teeb, kab, shear phab ntsa thiab lwm yam. Txawm hais tias txoj kab uas hla loj npaum li cas, nws tsis tshua muaj siv hauv kev tsim kho pej xeem thiab kev lag luam. Nws yog feem ntau siv hauv cov pob zeb loj, xws li hydraulic engineering.

4, Thawj qib steel bar (HPB300) yog feem ntau du steel, teej tug mus rau lub kub dov round steel bar, feem ntau hu ua hlau qws, 6-12 rounds ntawm feem ntau. Nyob rau hauv architecture, nws yog feem ntau siv los ua stirrups, faib tuav ntawm daim hlau, stirrups, phab ntsa reinforcement thiab thiaj li nyob.

Kub-rolled ribbed steel bar yog feem ntau hu ua threaded steel bar, feem ntau muaj ob longitudinal tav thiab transverse tav tusyees faib raws qhov ntev. Cov duab ntawm lub transverse tav yog kauv, herringbone, thiab crescent. Tus qauv Suav tam sim no teev tias nws yog crescent. Lub nominal txoj kab uas hla ntawm steel bar yog 6 ~ 50mm. Ribbed steel tuav feem ntau dais tensile kev nyuaj siab hauv pob zeb, thiab vim yog cov nyhuv ntawm cov tav, lawv muaj peev xwm sib txuas ntau dua nrog pob zeb.

 

 

 

► Lub zog muaj zog:HRB400 steel tuav muaj lub zog tawm los siab thiab lub zog kawg thiab tuaj yeem tiv taus cov khoom loj.

► Zoo ductility:Txawm hais tias thaum qhov taw tes tawm tau dhau lawm, cov hlau tuav yuav tsis tawg tam sim ntawd thiab muaj qee yam yas deformation muaj peev xwm.

► Kub dov txheej txheem:Ua los ntawm cov txheej txheem kub dov, cov hlau tuav muaj ribs ntawm qhov chaw, uas ua rau kom muaj zog sib txuas ntawm cov hlau tuav thiab pob zeb, yog li kev txhim kho tag nrho cov kev ua tau zoo ntawm cov pob zeb muaj zog.

Qhov sib txawv tseem ceeb yog HRB400E muaj cov qauv seismic. Tag nrho cov hlau tuav nrog cov qauv seismic yog sib sau ua ke hu ua E-bars.

Ntawm no, HRB400E yog hais txog lub zog ntawm 400MPa nrog seismic kev ua tau zoo. Tsis tas li ntawd, tus yuam sij rau hom steel bar no yog qhov super -yield ratio index tsis tuaj yeem loj dhau thiab qhov elongation tsis tuaj yeem me dhau.

Suav steel tuav tau ntsib cov txheej txheem ntawm kev txhim kho los ntawm lub zog qis mus rau lub zog siab dua.

1.High-cov tsev nce siab: Vim lawv lub zog siab thiab zoo ductilty, HRe400 steel tuav yog tsim rau cov khoom tseem ceeb xws li kab thiab begms nyob rau hauv high -risebuildings.

2. Choj engineering: hauv kev tsim cov choj, HRB400 steel tuav tuaj yeem muab qhov tsim nyog tensie strenath los xyuas kom meej qhov ruaj khov thiab ruaj khov ntawm cov qauv choj.

3.infrastructure: HRB400 steel tuav kuj tseem siv rau hauv kev tsim kho vaj tse xws li txoj kev thiab tunnels kom tau raws li qhov yuav tsum tau muaj ntawm cov qauv strenath thiab stability.

PAB 400steel bar yog steel bar nrog tsis zoo weldability. Raws li cov ntaub ntawv nyob rau hauv cov lus muaj pes tsawg leeg saum toj no, cov pa roj carbon sib npaug ntawm HRB400 steel yog Tsawg dua los yog sib npaug rau 0.54%, tab sis qhov tseeb carbon sib npaug ntawm cov hlau zeb tuaj yeem tswj tau ntawm 0.4% tam sim no.

Raws li peb ntau xyoo ntawm kev tsim khoom, thaum cov pa roj carbon sib npaug ntawm cov hlau thiab cov hlau tsis ntau tshaj 0.4%, qhov weldability ntawm cov hlau yog zoo; Thaum cov pa roj carbon sib npaug ntawm 0.4% thiab 0.6%, qhov hnyav ntawm cov hlau nce, thiab preheating thiab tswj cov vuam tsis yog yuav tsum tau thaum vuam; Thaum qhov sib npaug ntawm cov pa roj carbon ntau dua 0.6%, lub hardening nyiam ntawm cov hlau muaj zog, thiab nws nyuaj rau vuam steel, thiab siab dua preheating kub, tom qab-weld heat treatment, thiab nruj txheej txheem yuav tsum tau ntsuas.

Piv nrog rau Q235 steel, HRB400 steel ntxiv cov txheej txheem deg quenching los ua kom lub ntsej muag corrosion ntawm cov hlau zoo dua; tib lub sijhawm, ntxiv cov txheej txheem tempering ua rau cov hlau sib xyaw ua ke ntau dua, txo qhov muaj peev xwm sib txawv ntawm cov koom haum sib txawv ua cov hlau yooj yim rau corrode. Yog li ntawd, corrosion kuj ntawm HRB400 steel yog zoo dua li ntawm Q235 steel.

Hauv cov ntsiab lus, HRB400 steel bar, raws li qhov siab - lub zog thiab siab - ductility kub- dov ribbed steel bar, ua lub luag haujlwm tseem ceeb hauv ntau yam kev tsim kho. Nws cov txheej txheem tsim khoom tshwj xeeb thiab ntau yam kev siv ua rau nws yog ib qho tseem ceeb thiab cov ntaub ntawv tseem ceeb hauv kev tsim kho.

Xi'an Dongmeng Group Co., Ltd.

 

Xi'an Dongmeng Group Co., Ltd. yog ib tug zoo-paub kev lag luam nyob rau hauv lub thoob ntiaj teb steel lag luam.uas yog certifed los ntawm SGS Group.lt tsom rau kev muab siab - zoo steel tuav, Txij li thaum nws tsim, lub tuam txhab tau cog lus los muab cov neeg muas zaub nrog siab - zoo coiled steel rebar thiab lwm yam steel khoom, uas yog dav siv nyob rau hauv ntau yam kev lag luam, kev tsim kho vaj tse, kev tsim kho vaj tse. tas li nrhiav kev ua tau zoo thiab kev tsim kho tshiab, thiab cog lus los tsim lub ntiaj teb - ua kom cov khoom siv hluav taws xob sib txuas.