ASTM A252 / A252M steel yeeb nkab

KHOOM: BRISK STEEL

LSAW PIPE

OD: 406.9MM--1420MM WT: 10MM-60MM

Ncaj seam submerged arc welded yeeb nkab (LSAW) yog tsim nyob rau hauv raws li ASTM A252 / A252M cov qauv thiab feem ntau yog siv los ua cov txheej txheem pawg hauv paus hauv kev tsim cov phiaj xwm. Tus qauv qhia peb qib zog (Qib 1/2/3), uas qhov tsawg kawg nkaus yield zog ntawm Qib 3 steel yeeb nkab yog 310MPa thiab lub zog tensile tsis tsawg dua 455MPa, uas yog haum rau hnyav-load foundation tej yaam num xws li high{10}}nce vaj tse thiab hla- hiav txwv choj. Hom steel yeeb nkab no yog ua los ntawm kub- dov steel daim hlau los ntawm JCO txoj kev thiab ob -sided submerged arc vuam. Cov kev qhia tshwj xeeb yog 219-3000mm inch thiab 6-40mm hauv phab ntsa tuab. Nws muaj qhov zoo tshaj plaws axial siab bearing muaj peev xwm thiab khoov tsis kam. Tus qauv tso cai rau siv cov pa roj carbon steel los yog tsawg-cov ntaub ntawv hlau alloy. Txawm hais tias cov tshuaj muaj pes tsawg leeg tsis yog qhov yuav tsum tau ua, cov chaw tsim khoom yuav tsum tau muab cov ntaub ntawv txheeb xyuas kev sib xyaw kom ntseeg tau tias muaj kev sib txuas. Tsis zoo li API 5L pipeline yeeb nkab, ASTM A252 steel yeeb nkab tsom ntau dua ntawm cov qauv siv zog ntau dua li qis -kub toughness. Feem ntau, tsuas yog yuav tsum tau kuaj cov tensile ib txwm, thiab cov kev ntsuam xyuas cuam tshuam tsuas yog ntxiv thaum cov kev cai tshwj xeeb tau ua tiav. Tom qab vuam, kev tshuaj xyuas qhov muag thiab tsis yog - yuav tsum muaj kev puas tsuaj, tab sis cov qauv kev sim yog xoob dua li API, tsom rau qhov txuas ntxiv ntawm cov vuam es tsis yog qhov tsis xws luag. Cov yeeb nkab steel no feem ntau tau ntim nrog cov pob zeb ua vaj tse los tsim cov steel tube pob zeb sib xyaw, uas tuaj yeem txhim kho cov kabmob muaj peev xwm thiab kev ua haujlwm seismic ntawm pawg hauv paus. Piv nrog rau cov qauv European xws li EN 10219, ASTM A252 tus qauv tsom ntau dua rau North American kev ua lag luam tus cwj pwm thiab tau siv dav hauv Suav teb rau cov tsev loj loj hauv tsev loj, hla hiav txwv choj piers thiab lwm yam dej num. Piv txwv li, tej yaam num xws li Shanghai Ntauwd siv steel yeeb nkab pawg ntawm tus qauv no.