ASTM A252 GRA / GRB Kauv Submerged -Arc Welded (SSAW) Steel Pipe Pile
Txheem & Qib
Manufactured nruj me ntsis raws liASTM A252, ASTM A252 – Standard Specification rau Welded thiab Seamless Steel Pipes. Muaj nyob rau hauvQib GRAthiabQib GRBrau ntau yam txheej txheem kev cai.
| Khoom | GRA | GRB |
|---|---|---|
| Min. Yield zog (MPa) | 205 | 240 |
| Min. Tensile zog (MPa) | 310 | 415 |
| Elongation (200 hli ntsuas) | Ntau dua lossis sib npaug li 20% | Ntau dua lossis sib npaug li 20% |
GRB muab lub zog ntau dua rau lub hauv paus tob thiab hnyav hnyav. GRA yog kev lag luam ntau dua rau cov khoom siv thauj khoom.
Qhov zoo ntawm Kauv Welded Yeeb Nkab rau Piling
Piv nrog longitudinal welded yeeb nkab, kauv welded yeeb nkab muaj:
Optimized weld stress distribution- Kauv weld seam ntawm lub kaum sab xis rau cov yeeb nkab axis txhim kho kev ua haujlwm nyob rau hauv axial thiab dabtsi yog khoov loads.
High dimensional yooj- Txoj kab uas hla dav ntawm ib kab ntau lawm.
Stable kawg tiav- Zoo dua roundness thiab straightness rau yooj yim teb koom.
Cov ncauj lus kom ntxaws Specifications
| Parameter | Ntau yam |
|---|---|
| Sab nraud Diameter (OD) | 219mm - 3020mm |
| Phab ntsa Thickness (WT) | 8.1mm-26.97 hli |
Mechanical Properties & Test Results
| Kuaj | GRA yam | GRB UAS | Kev xav tau |
|---|---|---|---|
| Yield zog (MPa) | 220–280 | 260–350 | Ntau tshaj lossis sib npaug rau tus qauv min |
| Tensile zog (MPa) | 330–400 | 430–500 | Ntau tshaj lossis sib npaug rau tus qauv min |
| Elongation | 22–28% | 20–26% | Ntau dua lossis sib npaug li 20% |
| Qhia khoov Test (weld) | Tsis tawg | Tsis tawg | Hla |
| Flattening Test | Tsis muaj weld tawg | Tsis muaj weld tawg | Hla |
Kev Tswj Xyuas Zoo & Kev Tshuaj Xyuas
Txhua batch tau soj ntsuam nruj:
Raw khoom pov thawj- Mill daim ntawv pov thawj + rov kuaj dua ntawm chemistry & mechanicals.
NDT rau weld seam- 100% UT los yog RT raws li qhov ntev ntawm qhov vuam. Tsis siv neeg UT kev soj ntsuam online.
Hydrostatic xeem- Kev ntsuas siab ntawm ASTM A252, tuav ntau dua lossis sib npaug li 5 sec, tsis muaj qhov xau. Kev ua haujlwm siab: 3.0-12.0 MPa.
Dimensional & pom kev soj ntsuam- OD, WT, ntev, ovality, straightness, weld profile, defects nto.
Kev xeem ua haujlwm- Flattening, coj khoov, Charpy V-notch (optional) per batch.
Tej kev siv
| Sector | Daim ntawv thov |
|---|---|
| Tsev & Choj | High -nce foundation pawg, choj pier pawg, viaduct foundations |
| Chaw nres nkoj & Marine | Wharf steel pawg, dolphin pawg, mooring pawg |
| Kev thauj mus los | Railway subgrade reinforcement, txoj kev loj tuav cov phab ntsa, qhov shoring |
| Hydraulic & Ib puag ncig | Cofferdam piles, revetment pawg, dej phwj tank retaining pawg |
| Tej hauj lwm ib ntus | Sib sib zog nqus excavation kev txhawb nqa, ib ntus khaws cov pawg, nkag mus rau txoj kev txhim kho |
Peb qhov chaw nyob
Rm1406, 14th/F Legu Business Center, Xihu Ave, Hongqi Rd, Nankai Dist, Tianjin City, Suav teb
whatsapp Number
86 18233409873
E -mail
lucky@tjshenzhoutong.com
Cim npe nrov: Tuam Tshoj astm a252 gra / grb kauv steel yeeb nkab pawg manufacturers, lwm tus neeg, Hoobkas
