Q355 Q235 Dav Flange H Beam

Q235 yog cov khoom siv carbon steel. Cov pa roj carbon steel yog cov hlau alloy feem ntau muaj hlau thiab carbon, tab sis cov ntsiab lus carbon tsawg dua 2%. Feem ntau, nws kuj muaj me me ntawm silicon, manganese, sulfur, phosphorus, thiab lwm yam khoom. Carbon steel nrog sulfur thiab phosphorus cov ntsiab lus ntau dua 0.35% tab sis tsawg dua 0.5% los ntawm huab hwm coj hu ua cov pa roj carbon zoo tib yam. High-quality carbon steel thiab high-quality steel muaj qis sulfur cov ntsiab lus, thiab tom kawg muaj tsawg dua 0.3% sulfur thiab phosphorus ntsiab lus.

Q235 yog cov hlau nruab nrab thiab qis zog. Nws lub zog tawm los yog 235Mpa, thiab nws lub zog hauv cov ntaub ntawv hlau yog qhov tsawg. Cov hlau uas muaj zog dua, xws li Q345, nruab nrab lub zog steel, thaum cov uas muaj zog dua, xws li Q420D, siab zog steel. Kuj tseem muaj cov hlau tshwj xeeb ultra-high-lub zog, xws li GC-4 steel, uas nws lub zog tensile ncav cuag 1765-1961Mpa.

Q235 yog ib hom hlau uas zoo yas thiab toughness. Zoo toughness ntawm steel yog ib qho tseem ceeb kom zoo dua, vim hais tias nyob rau hauv engineering, yog hais tias lub toughness yog tsawg, ces brittle fracture yuav tshwm sim, thiab brittle fracture tshwm sim sai heev, ua rau muaj kev puas tsuaj loj.

Q235 yooj yim rau vuam. Vim hais tias cov txheej txheem vuam dav dav yog nqa tawm ntawm chav tsev kub, qhov cua txias ntawm cov welds hlau yog ceev heev. Tsis tas li ntawd, kev sib xyaw ntawm cov khoom siv raw thiab cov khoom siv vuam ua rau cov txheej txheem nruj heev. Peb tuaj yeem suav qhov weld raws li qhov tsis xws luag. Qhov zoo ntawm Q235 steel yog tias nws muaj tsawg dua cov khoom tsis zoo, xws li S thiab P, thiab nws tsis yooj yim los tsim kev sib cais uas tuaj yeem cuam tshuam rau cov vuam zoo. Nyob rau tib lub sijhawm, nws cov ntsiab lus carbon tsis siab, thiab nws tsis yooj yim los ua kom kub tawg hauv qhov vuam vim muaj cov pa roj carbon ntau hauv cov vuam.

Q355 Steel yog dab tsi?

Q355 yog cov hlau tsis tshua muaj hlau uas muaj zog, dav siv hauv cov choj, tsheb, nkoj, kev tsim kho, lub nkoj siab, cov khoom siv tshwj xeeb, thiab lwm yam, qhov "Q" txhais tau tias muaj zog tawm los, 355 txhais tau tias lub zog ntawm cov hlau no yog 355MPa. , thiab tus nqi tawm los yuav txo nrog qhov nce ntawm cov thickness ntawm cov khoom hlau.

Qhov zoo ntawm Q355 Steel

Q355 steel muaj ntau qhov zoo dua lwm hom qauv hlau. Nws muaj cov khoom siv zoo heev, lub zog siab, thiab zoo weldability. Q355 steel kuj tseem tiv taus corrosion, tsis tshua muaj kub toughness, thiab qaug zog kuj. Nws yog kev xaiv kev lag luam thiab txhim khu kev qha rau ntau daim ntawv thov hauv kev lag luam sib txawv.

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