Raws li GB/T3092 "Welded Steel Pipes for Low-Pressure Fluid Transport" tus qauv, lub nominal txoj kab uas hla ntawm welded yeeb nkab yog 6 ~ 15 0 hli, nominal phab ntsa thickness yog 2.0 ~ 6.0mm, thiab qhov ntev ntawm cov yeeb nkab welded feem ntau yog 4 ~ 10 meters, thiab tuaj yeem hloov kho rau qhov ntev ntev lossis ntau zaus. Tus kav ntev tawm ntawm lub Hoobkas. Qhov zoo ntawm cov yeeb nkab steel yuav tsum du, thiab qhov tsis xws luag xws li folding, tawg, delamination, thiab lap welding tsis raug tso cai. Qhov saum npoo ntawm cov yeeb nkab steel tau tso cai kom muaj qhov tsis xws luag xws li khawb, khawb, vuam dislocations, kub hnyiab thiab nti uas tsis pub dhau qhov tsis zoo ntawm cov phab ntsa thickness. Thickening ntawm phab ntsa thickness ntawm lub weld thiab muaj nyob rau hauv lub weld tuav yog tso cai.
Cov ntaub ntawv siv hauv Suav teb feem ntau yog Q235A, Q235B, 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb, 16Mn, 20#, Q345, L249 X, L X70, X80, thiab lwm yam.
Ntawm lawv, X42, X46, X56, X80 thiab lwm yam ntaub ntawv yog API tus qauv cov ntaub ntawv thiab tsis yog cov khoom siv rau cov kav dej hauv tsev.
Ncaj seam steel kav tsuas yog siv rau hauv cov dej num, kev lag luam petrochemical, tshuaj lom neeg kev lag luam, hluav taws xob kev lag luam, kev ua liaj ua teb irrigation, thiab kev tsim kho hauv nroog hauv Suav teb.
Rau kev thauj mus los ua kua: siv dej thiab tso dej.
Rau kev thauj mus los roj: thee gas, ncu, roj av liquefied.
Rau lub hom phiaj: piling kav, txuas hniav; cov kav dej rau docks, txoj kev, lub tsev tsim, thiab lwm yam.
