ASTM A252 Qib 3 Pipes Carbon Steel Pipes rau Cov Khoom Siv Khoom Siv piav qhia
Raws li ASTM A252 tus qauv thiab kev xyaum ua haujlwm engineering, A252 GR3 cov qauv yeeb nkab yog ib qho ncaj seam welded steel yeeb nkab tshwj xeeb tsim rau hnyav -cov haujlwm pawg hauv paus. Nws qhov chaw tseem ceeb thiab cov yam ntxwv yog raws li nram no:
Qhov tseem ceeb txhais
Tus Kheej: Ncaj seam submerged arc welded yeeb nkab (SAWL) ua raws li ASTM A252 Qib 3 tus qauv
Daim Ntawv Thov Core: Raws li kev thauj khoom mus tas li-cov kabmob cov qauv, siv rau hauv cov xwm txheej hnyav xws li super siab- cov tsev nce siab thiab hla- dej hiav txwv tej yaam num
Daim Ntawv Qhia Kev Ua Haujlwm: Qib siab tshaj plaws nyob rau hauv ASTM A252 tus qauv tam sim no (zoo tshaj rau GR2 / GR1)
ASTM A252 GR3 Cov Khoom Siv Hluav Taws Xob
| STEEL Qib | Yield zog, min. psi (MPa) | Tensil zog, min. psi (MPa) | Elongation hauv 2 hauv., min. % |
| QIB 3 | 45,000 (310) | 66,000 (455) | 20% |
Thickness ntawm ASTM A252 Qib 3 Steel Kab Yeeb
Core Performance Advantages ntawm ASTM A252 GR3 (vs. GR2)
| Parameter | GR3 specification | Kev txhim kho vs. GR2 | Engineering tus nqi |
|---|---|---|---|
| Yield zog | Ntau dua lossis sib npaug li 345 MPa | ↑19% | Txhawb lub hauv paus ntawm 100m + skyscrapers |
| Tensile zog | Ntau dua lossis sib npaug li 485 MPa | ↑17% | Resistant deformation los ntawm av qeeg / typhoons |
| Tsawg-Tsub Toughness | Dhau -20℃Impact Test | Qhov yuav tsum tau ua tshiab | Qhov tseem ceeb rau polar/permafrost tej yaam num |
| Siv Pile Qhov tob | 40-100 m | Muab ob npaug rau qhov tob | Txo cov pawg kom muaj nuj nqis, txo cov nqi tag nrho |
ASTM A252 GR3 Hlau Yeeb Nkab Test
Kev Ntsuas Hydrostatic: Tsis tau teev tseg.
Number of Tests: Ib qho kev ntsuas tensile ib 200 qhov ntev.
Mechanical Tests: Tensile Test: Ob leeg longitudinal lossis transverse ntawm kev xaiv ntawm cov chaw tsim khoom
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