EN 10219 S275JOH Kub Finish Rectangular Hollow Section Welded Tube

Qib no ntawm hollow seem yog paub txog nws cov nqi pheej yig piv rau feem ntau cov kav dej steel. Nws kuj muaj cov ntsiab lus carbon tsawg. Yog li ntawd, cov square hollow seem yog ib qho kev xaiv pheej yig heev. Los ntawm kev pom tshuaj, qhov siab tshaj plaws carbon concentration ntawm S355JOH seem uas tsim los ntawm lub Hoobkas yog 0.22%. Yog li ntawd, cov raj hollow no yooj yim tsim los ntawm cov txheej txheem tuav-tiav. Qhov ntev ntawm qhov hollow seem yog li ntawm 6000mm txog 18000mm, thiab tshwj xeeb txiav-rau-ntev qhov ntau thiab tsawg kuj muaj. Cov khoom siv feem ntau yog siv rau hauv ntau yam kev ua haujlwm, kev siv tshuab, thiab architectural.
S355JOH steel hollow seem rau cov raj raj hom muaj li ntawm 40mm * 20mm txog 400mm * 200mm. Carbon, silicon, manganese, thiab phosphorus yog lub ntsiab ntawm cov khoom no. Txij li S355JOH ntu yog cov hlau tsis tshua muaj hlau, lawv tuaj yeem welded yam tsis muaj intergranular corrosion; Txawm li cas los xij, nws raug nquahu kom siv cov khoom ntim kom txaus, preheating, thiab tom qab vuam kev kho cua sov thaum siv qee cov txheej txheem vuam los tiv thaiv vuam tawg. S355JOH RHS muaj nyob rau hauv ntau hom kev teeb tsa nrog phab ntsa tuab xws li 1.8mm txog 14.27mm thiab ODs ntawm 21.3mm txog 457.2mm. Zoo mechanical zog, zoo zog thiab zoo weldability.
Cov ntawv thov rau qib no ntawm cov ntu ntu ntu suav nrog kev lag luam marine thiab fais fab nroj tsuag, offshore, hluav taws xob thiab ntau ntxiv. Cov ntu no muaj OD ntau ntawm 21.3mm txog 457.2mm. Cov txheej txheem kev xa khoom tau teev tseg nyob rau hauv European Standard siv rau kub tiav S355JOH puag ncig hollow seem tsim nyob rau hauv ntau txoj kev thiab lawv tuaj yeem siv rau cov ntu uas tau tsim kub, nrog lossis tsis muaj kev kho cua sov ntxiv. Cov seem ntawm cov hollow kheej kheej tuaj yeem ua kom txias tom qab cua sov kom ua tiav lub xeev metallurgical piv rau cov khoom kub tsim.

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