Seamless steel yeeb nkab rau cov qauv (GB/T8162-2008) yog siv rau cov qauv dav dav thiab cov qauv siv tshuab ntawm seamless steel yeeb nkab.
Siv rau kev tsim seamless steel raj rau cov kav dej, cov hlab ntsha, cov khoom siv, fittings thiab mechanical structures
Kev tsim kho: cov qauv hauv tsev, hiav txwv trestle, tshav dav hlau qauv, chaw nres nkoj, kev nyab xeeb qhov rooj ncej, lub qhov rooj nres tsheb, siv zog hauv cov qhov rooj steel qhov rooj thiab qhov rais, sab hauv phab ntsa vaj huam sib luag, cable choj qauv thiab txoj kev ruaj ntseg tiv thaiv, railings, kho kom zoo nkauj, thaj chaw, cov kav dej zoo nkauj
Auto Parts: Kev tsim tsheb thiab tsheb npav, cov cuab yeej thauj mus los
Ua liaj ua teb: Agricultural khoom
Kev lag luam: Machinery, hnub ci kev them nyiaj yug, offshore roj teb, mining khoom, mechanical thiab hluav taws xob kho vajtse, Engineering, mining, hnyav thiab peev txheej, txheej txheem Engineering, khoom ua, mechanical qhov chaw
Kev thauj mus los: cov neeg taug kev railings, guardrails, square structures, signage, txoj kev khoom, laj kab
Logistics cia: tsev loj rhawv, rooj tog, khoom siv hauv tsev kawm ntawv
Main qib ntawm steel yeeb nkab
Q345, 15CrMo, 12Cr1MoV, A53A, A53B, SA53A, SA53B
Seamless steel raj loj thiab tso cai sib txawv
| Qib ntawm kev sib txawv | Tso cai sib txawv ntawm normalized txheej kab |
| D1 | ± 1.5%, ± 0.75 hli |
| D2 | Ntxiv lossis rho tawm 1.0%. Yam tsawg kawg nkaus + / - 0.50 mm |
| D3 | Ntxiv lossis rho tawm 1.0%. Yam tsawg kawg nkaus + / - 0.50 mm |
| D4 | Ntxiv lossis rho tawm 0.50%. Yam tsawg kawg nkaus + / - 0.10 mm |
Cov pa roj carbon steel tube (GB/8162-2008)
Cov yam ntxwv ntawm cov yeeb nkab steel no feem ntau smelted los ntawm converter los yog qhib hearth, nws cov khoom tseem ceeb yog molten hlau thiab seem hlau, cov ntsiab lus ntawm leej faj thiab phosphorus nyob rau hauv cov hlau yog siab dua li cov zoo carbon structural steel yeeb nkab, feem ntau sulfur ≤0.050. %, phosphorus ≤0.045%. Cov ntsiab lus ntawm lwm yam alloying ntsiab, xws li chromium, npib tsib xee thiab tooj liab, coj mus rau hauv cov hlau los ntawm raw cov ntaub ntawv feem ntau tsis ntau tshaj 0.30%. Raws li qhov muaj pes tsawg leeg thiab kev ua tau zoo, qib ntawm cov qauv steel yeeb nkab yog qhia los ntawm qib steel Q195, Q215A, B, Q235A, B, C, D, Q255A, B, Q275 thiab lwm yam.
Faj seeb: "Q" yog Suav cov tsiaj ntawv ntawm yield "qu", ua raws li qhov tsawg kawg nkaus yield point (σ S) tus nqi ntawm qib, ua raws li cov cim raws li cov ntsiab lus impurity (sulfur, phosphorus) cov ntsiab lus los ntawm siab mus rau qis. nrog kev hloov pauv hauv cov ntsiab lus carbon thiab manganese, muab faib ua plaub qib A, B, C, D.
Qhov zoo ntawm cov qauv steel yeeb nkab tso zis yog qhov loj tshaj plaws, kev siv dav heev, ntau dov rau hauv phaj, profile (round, square, ca, ua hauj lwm, zawj, lub kaum sab xis, thiab lwm yam) thiab profile thiab manufacturing vuam steel yeeb nkab. Feem ntau yog siv rau hauv kev cob qhia, choj, nkoj thiab lwm yam kev tsim vaj tsev thiab cov kav dej dav dav. Hom hlau no feem ntau siv ncaj qha yam tsis muaj kev kho cua sov.
Tsawg alloy siab zog steel yeeb nkab (GB/T8162-2008)
Ntxiv rau qee qhov nyiaj ntawm silicon lossis manganese, cov kav hlau steel muaj lwm cov khoom tsim nyog rau Tuam Tshoj cov peev txheej. Xws li vanadium (V), niobium (Nb), titanium (Ti), txhuas (Al), molybdenum (Mo), nitrogen (N), thiab tsis tshua muaj ntiaj teb (RE) kab kawm. Raws li cov tshuaj muaj pes tsawg leeg thiab kev ua tau zoo, nws qib yog sawv cev los ntawm Q295A, B, Q345A, B, C, D, E, Q390A, B, C, D, E, Q420A, B, C, D, E, Q460C, D , E thiab lwm yam steel qib, thiab nws lub ntsiab lus yog tib yam li carbon structural steel yeeb nkab.
Ntxiv rau qib A thiab B steel, qib C, GRADE D thiab Qib E steel yuav tsum muaj tsawg kawg yog ib qho ntawm cov khoom ua kom zoo zoo xws li V, Nb, Ti thiab Al. Txhawm rau txhim kho kev ua haujlwm ntawm cov hlau, A, B qib steel kuj tuaj yeem ntxiv rau ib qho ntawm lawv. Tsis tas li ntawd, cov ntsiab lus seem ntawm Cr, Ni thiab Cu yog tsawg dua 0.30%. Q345A, B, C, D, E yog cov qib sawv cev ntawm cov hlau no, ntawm cov hlau A, B qib feem ntau hu ua 16Mn; Ntau tshaj li ib txoj kab yuav tsum tau ntxiv rau qib C thiab siab dua cov yeeb nkab steel, thiab ib qho khoom siv hluav taws xob qis yuav tsum tau ntxiv rau nws cov khoom siv kho tshuab.
Qhov piv ntawm hom qauv steel yeeb nkab rau carbon structural steel. Nws muaj qhov zoo ntawm lub zog siab, kev ua haujlwm zoo, kev ua haujlwm ntev, kev siv ntau yam thiab kev sib piv kev lag luam. Nws yog dav siv nyob rau hauv Choj, ships, boilers, tsheb thiab tseem ceeb cov qauv.
Post lub sij hawm: Jun-07-2022
