A252 GR2 cov khoom muaj qhov sib npaug ntawm lub zog siab thiab zoo ductility thiab toughness, nrog lub zog tawm los zoo dua lossis sib npaug ntawm 345MPa, tensile zog 470-630MPa, thiab elongation Ntau dua lossis sib npaug li 20%. Nws nthuav tawm qhov ua tau zoo ntawm qhov kub thiab txias tsis zoo (qhov cuam tshuam lub zog ntau dua lossis sib npaug ntawm 34J ntawm -20 degree), ua rau nws tsim nyog siv rau thaj chaw txias heev. Cov khoom tau dhau los ntawm kev tswj cov dov thiab txias txheej txheem (TMCP), uas ua rau cov nplej ua kom zoo thiab zoo heev weldability thiab qaug zog.
A252 GR2 Pile yeeb nkab specification
Mechanical Requirement
Elogation Ntawm ASTM A252 Pipes
Daim ntawv thov
1. Cov Khoom Siv Hauv Tsev: Cov ncej steel rau siab - cov tsev nce siab, cov khoom siv seismic bracing
2. Choj Engineering: Lub thawv girders rau ntev - txuas txuas, thauj khoom -cov khoom siv rau cov piers choj
3. Siv Machinery: Crane booms, hnav-cov khoom tiv thaiv rau cov khoom siv mining
4. Cov Tsheb Tshwj Xeeb: Hnyav - lub luag haujlwm tsheb chassis, thawv thav ntawv
Txheej txheem ntau lawm:
1. Raw Material Inspection: Cov tshuaj muaj pes tsawg leeg thiab txhua yam khoom ntawm cov hlau sawb yuav tsum ua tau raws li cov cai ntawm ASTM A252.
2. Kev tsim thiab Vuam: Cov hlau sawb yog tsim los ntawm lub tshuab spiral dov thiab welded siv submerged arc vuam (SAW) lossis siab - zaus vuam (HFW). Weld seams yuav tsum tau kuaj xyuas los ntawm X-ray flaw detection.
3. Dimensional Calibration: Tswj lub tolerances ntawm sab kab thiab phab ntsa thickness (xws li, txheej kab sib txawv ± 0.5%, phab ntsa thickness sib txawv ± 10%).
4. Kev Ntsuam Xyuas Kev Ua Haujlwm: Ua cov kev ntsuas hydrostatic (siab dua lossis sib npaug ntawm 1.5 npaug ntawm qhov kev tsim siab), kev sim tensile, kev sim khoov, thiab lwm yam.
- Kev tiv thaiv corrosion:
Qib tshem tawm xeb ntawm qhov chaw yuav tsum ncav cuag Sa2.5 (ze -dawb). Cov txheej thickness yog xaiv raws li ib puag ncig yuav tsum tau (xws li, 3PE txheej thickness Ntau tshaj los yog sib npaug rau 2.5 hli).
Kev kuaj thiab tshuaj xyuas
Ntim thiab shipping
