Q345Ryog ib qho tshwj xeeb Suav qis- alloy siab- lub zog steel tsim rau boilers thiab siab hlab ntsha ibGB/T 713txheem.
Ntsiab Specifications
"Q": Sawv rauQu(Yield point).
"345": Sawv cev qhov tsawg kawg nkaus yield zog ntawm 345 MPa rau nyias daim hlau.
"R": Sawv rauRong(Lub nkoj siab).
Q345R Tshuaj muaj pes tsawg leeg
|
Qib |
C % |
Si% |
Mn% |
Cu% |
Ni% |
Cr% |
Mo% |
V % |
|
Q345R |
0.20 |
0.55 |
1.2-1.7 |
0.30 |
0.30 |
0.30 |
0.08 |
0.050 |
|
Ti % |
Alt% |
P % |
S % |
Nb |
|
|
|
|
|
0.030 |
0.020 |
0.025 |
0.010 |
0.050 |
|
|
|
Q345R Mechanical Property
|
Qib |
Thickness (hli) |
Min Yield |
Tensile |
Elongation |
Min Impact Zog |
|
|
|
|
|
|
|
Qib |
Min J |
|
Q345R |
3-16 |
345 Mpa |
510-640 Mpa |
21% |
0 |
41J |
|
16-36 |
325 Mpa |
500-630 Mpa |
21% |
0 |
41J |
|
|
36-60 |
315mpa ua |
490-620 Mpa |
21% |
0 |
41J |
|
|
60-100 |
305mpa ua |
490-620 Mpa |
20% |
0 |
41J |
|
|
100-150 |
285mpa ua |
480-610 Mpa |
20% |
0 |
41J |
|
|
150-250 |
265mpa ua |
470-600 Mpa |
20% |
0 |
41J |
|
Mechanical Property Advantages
Siab zog:
Nrog rau qhov tsawg kawg nkaus tawm lub zog ntawm 345 MPa (rau nyias daim hlau) - siab dua li cov pa roj carbon zoo li Q245R (235 MPa) -Q345R tuaj yeem tiv taus siab dua. Qhov no tso cai rau tsim kom muaj kev nyab xeeb thiab muaj peev xwm ua rau cov phab ntsa ntawm cov hlab ntsha nyias nyias.
Zoo heev Comprehensive Toughness thiab Plasticity:
Q345R nthuav tawm siab elongation thiab cuam tshuam toughness. Nws lav qhov tshwj xeeb cuam tshuam rau lub zog muaj nuj nqis ntawm 0℃lossis qis dua (nyob ntawm qib), ua kom ntseeg tau thiab tsis kam ua rau tawg tawg thoob plaws ntau yam kev ua haujlwm.
Kev ua haujlwm ruaj khov:
Cov hlau no tuav cov khoom ruaj khov ntawm ob chav kub thiab nruab nrab - mus rau - qhov kub thiab txias, ua rau nws haum rau kev ua haujlwm ntev - nyob rau hauv qhov kub thiab txias feem ntau qis dua 450℃.
Txheej txheem thiab daim ntawv thov zoo
Superior Vuam Performance:
Vim nws cov ntsiab lus tsis tshua muaj carbon tsawg thiab nruj tswj cov impurities-xws li Phosphorus (P) thiab Sulfur (S)-Q345R muaj cov khoom zoo heevweldability. Qhov no txo qhov kev pheej hmoo ntawm weld cracking thiab pab txhawb cov fabrication ntawm loj, complex welded lug.
Tus nqi -Kev ua tau zoo:
Piv nrog rau cov tsoos steels, cov cuab yeej tsim nrog Q345R tuaj yeem ua tiav apoob phaus ntawm 15-20%, yog li txhim kho kev siv cov khoom siv thiab kev lag luam kev lag luam tag nrho.
Corrosion Resistance:
Through optimized alloy composition and manufacturing processes, Q345R can form a dense oxide film on its surface, providing resistance against general corrosion, pitting, and oxidation.
Ua haujlwm rau Hydrogen-Induced Cracking (HIC):
Cov qib tshwj xeeb, xws li Q345R(HIC), tau tsim tshwj xeeb thiab sim ua kom muaj zog tiv thaiv hydrogen-induced cracking, ua rau lawv zoo tagnrho rau ib puag ncig uas muaj corrosive media xws li hydrogen sulfide (H₂S).
Standardization thiab dav muaj:
Raws li qhov dav siv dav dav hlau phaj steel phaj hauv Suav teb, nws ua raws li tus qauv nruj GB / T 713. Nws mature ntau lawm thiab daim ntawv thov keeb kwm kom yooj yim procurement thiab txhim khu kev qha zoo tswj.
Vim li cas thiaj xaiv peb:
Koj tuaj yeem tau txais cov khoom zoo meej raws li qhov koj xav tau ntawm tus nqi tsawg kawg nkaus.
Peb kuj muab Reworks, FOB, CFR, CIF, thiab qhov rooj rau qhov rooj tus nqi xa khoom. Peb xav kom koj ua deal rau shipping uas yuav zoo heev.
Cov ntaub ntawv uas peb muab yog muaj tseeb tiag, txoj cai los ntawm raw cov ntaub ntawv xeem daim ntawv pov thawj mus rau qhov kawg dimensional nqe lus.
Peb lav muab cov lus teb tsis pub dhau 24 teev (feem ntau hauv tib lub sijhawm)
Koj tuaj yeem tau txais cov khoom hloov pauv, zeb xa khoom nrog txo lub sijhawm tsim khoom.
Peb tau mob siab rau peb cov neeg siv khoom. Yog tias nws yuav tsis tuaj yeem ua tau raws li koj cov kev xav tau tom qab kuaj xyuas tag nrho cov kev xaiv, peb yuav tsis ntxias koj los ntawm kev cog lus tsis tseeb uas yuav tsim kev sib raug zoo rau cov neeg siv khoom.
Yog tias koj xav paub ntxiv txog GNEE cov khoom, koj tuaj yeem xa email rau beam@gneesteelgroup.com. Peb zoo siab tshaj los pab koj.
Lub xeev xa khoom ntawm Q345R yog dab tsi?
Tus txheej txheem xa khoom ntawm Q345R yog normalizing (N). Rau cov kev xav tau tshwj xeeb, nws tseem tuaj yeem xa tuaj rau hauv kub -rolled (AR) xeev, tab sis normalizing yog nyiam los xyuas kom meej cov khoom ruaj khov.
Q345R puas tuaj yeem khoov lossis tsim?
Q345R muaj cov qauv zoo thiab tuaj yeem khoov, dov thiab tsim los ntawm kev ua haujlwm txias lossis kub. Cov txheej txheem tsim yuav tsum tsis txhob deformation ntau dhau los tiv thaiv cov kab nrib pleb thiab xyuas kom meej qhov tseeb ntawm cov khoom.
Qhov txawv ntawm Q345R thiab Q245R yog dab tsi?
Qhov sib txawv tseem ceeb yog lub zog tawm los: Q345R yog 345 MPa, Q245R yog 245 MPa. Q345R muaj zog dua, haum rau cov hlab ntsha siab dua; Q245R yog rau qis - cov kev mob siab, nrog tus nqi qis.
Yuav khaws Q345R steel daim hlau li cas?
Q345R steel daim hlau yuav tsum muab cia rau hauv qhov chaw qhuav, qhov cua nkag kom tsis txhob ya raws thiab xeb. Lawv yuav tsum tau muab tso rau ntawm cov ntoo pallets, kom deb ntawm cov khoom corrosive, thiab npog nrog cov ntaub ntawv tsis muaj dej yog khaws cia sab nraum zoov.
Q345R puas tuaj yeem siv rau siab - cov hlab ntsha siab?
Yog lawm, Q345R yog tsim rau kev tsim khoom nruab nrab thiab siab - cov hlab ntsha siab. Nws lub zog muaj zog thiab zoo toughness tuaj yeem tiv taus lub siab load ntawm siab -siab ua hauj lwm tej yam kev mob, tab sis nws yuav tsum tau tsim thiab soj ntsuam raws li cov qauv.
Dab tsi yog qhov yuav tsum tau ua ntawm Q345R?
Q345R xav tau cov nplej loj, feem ntau tsis coarser dua qib 5 (raws li GB / T 6394). Cov nplej zoo tuaj yeem txhim kho cov hlau qhov toughness thiab lub zog, txo qhov kev pheej hmoo ntawm brittle puas.
Puas yog Q345R tiv taus corrosion?
Q345R muaj kev tiv thaiv corrosion nyob rau hauv atmospheric thiab ib puag ncig me me. Rau corrosive media (xws li kua qaub, alkali), nws xav tau kev kho corrosion (xws li pleev xim, galvanizing, hauv ob sab phlu) kom ntev kev pab cuam lub neej.
Dab tsi yog cov khoom siv vuam sib txuam Q345R?
Cov khoom siv vuam sib txuam Q345R suav nrog E50 series electrodes (rau phau ntawv arc vuam), ER50-6 vuam hlau (rau roj hlau arc vuam), thiab lwm yam. Cov khoom siv vuam yuav tsum muaj lub zog zoo sib xws thiab toughness rau lub hauv paus hlau.
Q345R puas tuaj yeem siv rau qhov kub thiab txias?
Q345R tuaj yeem siv rau qhov nruab nrab thiab qis qis, feem ntau mus txog 450 degree. Ntawm qhov kub siab dua, nws lub zog yuav txo qis, yog li nws tsis haum rau ntev - siv nyob rau hauv siab - qhov chaw kub siab tshaj 450℃.
Yuav tsum muaj daim ntawv pov thawj dab tsi rau Q345R khoom?
Q345R cov khoom yuav tsum muaj daim ntawv pov thawj zoo (nrog rau cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, cov txiaj ntsig tshuaj xyuas), thiab daim ntawv qhia txog qhov tsis zoo ntawm ultrasonic yog tias xav tau. Daim ntawv pov thawj yuav tsum ua raws li GB / T 713-2014 tus qauv.