gnee cev team
20 # precision structural steel yeeb nkabyog cov khoom siv high-precision steel yeeb nkab ua tiav los ntawm kev kos duab txias lossis kub dov.
Vim hais tias 20 # precision steel yeeb nkab tsis muaj oxide txheej ntawm cov phab ntsa sab hauv thiab sab nrauv, tuaj yeem tiv taus siab yam tsis muaj qhov to, muaj kev ua haujlwm siab, siab smoothness, tsis deformation hauv txias dabtsi yog khoov, tsis muaj kab nrib pleb thiab flattening, thiab lwm yam. Feem ntau yog siv los tsim cov khoom rau pneumatic lossis hydraulic Cheebtsam. Xws li lub tog raj kheej lossis cov roj kheej kheej, uas tuaj yeem yog cov kav dej seamless lossis welded kav. Cov tshuaj muaj pes tsawg leeg ntawm precision steel kav yog carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, thiab chromium Cr.
Hom: 20 steel yeeb nkab
Txuj: GB/T 699-1999&GB/T 3639-2008
Cov yam ntxwv thiab Scope ntawm kev siv:
Nws muaj qhov txias deformation plasticity thiab feem ntau yog siv rau khoov, dov, flanging thiab rauj arching. Nws muaj qhov ua tau zoo ntawm kev sib txuas ntawm arc vuam thiab tiv tauj vuam. Lub thickness yog me me thaum lub sij hawm roj vuam, thiab cov kab nrib pleb yog nquag tshwm sim ntawm qhov chaw uas yuav tsum tau nruj nreem xav tau los yog complex duab. Lub caij txias los yog lub xeev normalized muaj kev ua haujlwm zoo dua li lub xeev annealed, thiab feem ntau yog siv los tsim cov ntaub ntawv uas tsis tshua muaj kev ntxhov siab tab sis siab toughness.
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Khoom siv
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C%
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Mn%
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Si%
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S%
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P%
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20#
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0.17-0.23
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0.35-0.65
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0.17-0.37
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Tsawg dua lossis sib npaug rau 0.035
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Tsawg dua lossis sib npaug rau 0.035
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Kev muab khoom zaum kawg
Qhov xwm txheej
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Txias tiav lawm
(Hard) (BK)
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Txias kos thiab kev ntxhov siab (BK + S lossis + SR)
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Hardness HB
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|||
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Tsis muaj
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T.S
obN/mm²
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Elongation
δ5%
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T.S
obN/mm²
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Y.S
OsN/mm²
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Elongation
δ5%
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|
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20 # (A106B, ST45, E255)
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>=550
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>=8
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>=520
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>=375
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>=12
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175
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20 # puag ncig carbon steel raj
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Tsim
txoj kev
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Lub tog raj kheej ID (mm)
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Ntev
(m)
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Kev ncaj
(mm / m)
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Ua siab ntev
ntawm ID
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Ua siab ntev
ntawm WT
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Roughness
(μm)
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Txias kos
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40-420
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Tsawg dua lossis sib npaug li 16M
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0.2-0.5
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Nyob ntawm
kev xav tau
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±8%
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0.8
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Seamless 20 # precision steel yeeb nkab txheej txheem ntws
Tube blank--kev tshuaj xyuas--peeling-- tshuaj xyuas-- cua sov--perforation--pickling thiab passivation-- sib tsoo{{7} }lubrication thiab cua-drying--txias dov--degreasing-- taub hau txiav{12}} tshuaj xyuas-- cim- - ntim khoom
Gnee Factory ib puag ncig
FAQ
GB yeeb nkab txheem yog dab tsi?
GB/T8162-1999 (Seaamless steel yeeb nkab rau cov qauv). Feem ntau yog siv rau cov qauv dav dav thiab cov qauv siv tshuab.
Peb cia siab rau koj lub tuam txhab li cas?
Peb tshwj xeeb hauv kev lag luam steel rau ntau xyoo, tau lees paub los ntawm SGS, txais tos tuaj xyuas peb lub Hoobkas.
Koj puas muaj kev tswj xyuas zoo?
Yog lawm, peb tau txais daim ntawv pov thawj BV.SGS.
Cim npe nrov: gb 20 # structural steel yeeb nkab, Tuam Tshoj gb 20 # structural steel yeeb nkab manufacturers, lwm tus neeg, Hoobkas
