Qhov tseem ceeb sib npaug Astm cov qib
| Ntiag tug | EN 10025-2 S35J2 | ASTM A572 Qib 50 | ASTM A992 (Lwm Yam) |
|---|---|---|---|
| Yield zog (min) | 355 MPa (~ 51 ksi) | 345 MPa (~ 50 ksi) | 345-450 MPa (~ 50-65 KSI) |
| Lub zog tensile | 470-630 MPa | 450 MPa (min) | 450 MPa (min) |
| Elongation (min) | 22% (tuab-nyob nraum) | 18-21% (nws txawv) | 18-21% (zoo sib xws) |
| Cuam Tshuam | Charpy V-nthuav tawm @ -20℃(J2 Subix) | Feem ntau tsis tas yuav tsum tau (tshwj tsis yog teev) | Feem ntau teev rau cov seismic |
| Cov Kev Siv Cov Ntawv Siv | Txuas hniav, vaj tse, cov qauv dav dav | Cov qauv txheej txheem ua haujlwm, tsim kev hnyav | High-aw vaj tse, seismic-resistant qauv qauv |
Cov Ntawv Ntxiv
Kev Cuam Tshuam – S355J2yuav tsum tauCharpy Cuam Tshuam Twv ntawm -20 Qib, thaumASTM A572 gr . 50Feem ntau tsis tau (tshwj tsis yog cov kev cai ntxiv siv).
Tshuaj Muaj Tshuaj – A572 gr . 50tau zawmphosphorus (p) & leej faj (s)txwv piv rau S355J2.
Lwm Txoj Kev Astm Cov Qib- Yog tias muaj qhov kub tsawg yog qhov tseem ceeb,ASTM A709 Qib 50(Choj Hlau) lossisASTM A588(Weathering hlau) yuav raug txiav txim siab.
Tag
RauCov qauv kev siv dav dav, ASTM A572 Qib 50yog qhov ze tshaj plaws. YogKev Cuam Tshuam Kev Ntsuam Xyuas ntawm -20 Qibyog yuav tsum tau ua,ASTM A709 Qib 50los yog kev cai-teevA572 nrog kev xav tau ntxiv (srt)tej zaum yuav xav tau.
