Cov tshuaj lom neeg muaj pes tsawg leeg ntawm Q195 steel yeeb nkab?
The main chemical components of Q195 steel pipe include carbon (C), silicon (Si), manganese (Mn), phosphorus (P) and sulfur (S). Ntawm lawv, cov ntsiab lus carbon feem ntau tsis tshaj 0.12%, cov ntsiab lus silicon yog tsawg, thiab cov ntsiab lus manganese yog nruab nrab ntawm 0.30% thiab 0.50%. Phosphorus thiab leej faj yog impurity ntsiab, thiab lawv cov ntsiab lus tau tswj hwm hauv qab 0.045% thiab 0.050% feem. Qhov kev siv roj carbon tsawg no muab Q195 cov yeeb nkab steel zoo thiab cov khoom siv vuam, tab sis kuj muaj zog tsawg.
Dab tsi yog cov khoom siv tshuab ntawm Q195 steel yeeb nkab?
Lub zog tensile ntawm Q195 steel yeeb nkab feem ntau yog nruab nrab ntawm 315 thiab 430 MPa, lub zog zog tsis tsawg dua 195 MPa, thiab lub elongation yog kwv yees li 33%. Vim nws cov ntsiab lus carbon qis, nws muaj qis dua lub hardness tab sis muaj kev nruj zoo dua, uas yog tsim rau kev txias los yog khoov. Txawm li cas los xij, nws lub zog tsis zoo li Q235 lossis Q345, yog li nws feem ntau siv nyob rau hauv lub teeb-loaded qauv lossis tsis nqa-coj cov kabmob.
Dab tsi yog Q195 cov kav hlau tsim nyog rau?
Q195 cov kav hlau steel yog tsim nyog rau ib puag ncig kub, xws li lub tsev scaffolding, thiab cov rooj tog kom haum thiab corrosion tsis kam. Hauv kev kho mob noo noo, tiv thaiv xeb ib puag ncig xws li galvanizing lossis xim pom zoo kom txuas txoj haujlwm pabcuam kev pabcuam.
Dab tsi yog qhov sib txawv ntawm Q195 cov kav dej steel thiab lwm cov roj steel hlau xws li Q235?
Cov pa roj carbon cov ntsiab lus ntawm Q195 cov kav hlau steel yog qis dua li ntawm Q235, yog li lub zog thiab hardness yog qis dua, tab sis weldability thiab weldability zoo dua. Cov txiaj ntsig lub zog ntawm Q235 yog 235 MPa, thaum lub sijhawm Q195 tsuas yog 195 MPa, yog li ntawd rau cov khoom siv thauj khoom-. Tsis tas li ntawd, tus nqi ntawm Q195 feem ntau yog qis dua, uas yog qhov tsim nyog rau nqi-rhiab tab sis muaj zog tsawg.
Yuav Q195 Cov Kav Pipe yuav welded? Dab tsi yuav tsum tau them nyiaj rau thaum vuam?
Q195 steel yeeb nkab muaj kev ua haujlwm vuam zoo thiab tuaj yeem welded los ntawm arc vuam, roj vuam los thaiv vuam. Cov hluav taws xob hydrogen ntau (xws li J422) yuav tsum tau xaiv rau vuam, thiab kev vuam tam sim no thiab nrawm yuav tsum tau tswj kom tsis txhob muaj cov nplej ntau dua thiab coarsearsearse. Tsis tas yuav tsum muaj kev ua ntej yuav tsum tau ua ntej vuam, tab sis weld zoo yuav tsum tau soj ntsuam tom qab vuam los tiv thaiv kev tawg lossis hws. Vim yog cov ntsiab lus carbon tsawg ntawm Q195, lub vuam deformation yog me me thiab nws yog qhov tsim nyog rau nyias walled yeeb nkab vuam vuam.
