** 1. Cov khoom siv twg yog S355j2h? **
S355J2H yog ib tug ** tsis-almoy qauv hlau qib ** 6 10210 ** Tus "s" qhia cov qauv hlau, "355" Qhia tawm qhov tsawg kawg nkaus lub zog ntawm 555 MPa} AG Degs (piv txwv li cov leeg lossis hollow profiles).
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** 2. Dab tsi yog AHTM sib npaug khoom siv rau S3555j2? **
Qhov ze tshaj Astm sib npaug rau S355j2 (EN 10210) yog ** ittm A500 Qib C ** rau Hollow Cov Qauv Txheej Txheem (HSS). Ob qib tau muaj piv cov txiaj ntsig sib piv zog (355 MPA vs. 345 MPa rau A500 gr. C) thiab siv hauv cov ntawv thov zoo sib xws. Txawm li cas los xij, kev sib txig sib luag yog nyob ntawm cov cai tshwj xeeb (piv txwv li, tshuaj lom neeg muaj pes tsawg leeg, cov qauv kev sim).
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** 3. Dab tsi yog lub ntsiab lus ntawm S355J2H N? **
Tus "N" hauv ** s355j2h + n ** yog ** li qub ** (lossis ib txwm rolled) mob. Qhov ib txwm yog ib txheej txheem kev kho cua sov uas kho cov qauv grain, txhim kho kev txhim kho thiab homogeneity. Qhov kev tsim qauv no muaj ntau nyob rau hauv en 10210 rau ntu hollow cov uas yuav tsum tau ua kom zoo dua cov khoom siv kho.
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** 4. Dab tsi yog tshuaj lom neeg muaj pes tsawg leeg ntawm en 10210 s355j2h? **
Cov neeg raug ntau yam (max wt%) rau ** en 10210 s355j2h ** yog:
- ** Cov pa roj carbon (c): ** Tsawg dua lossis sib npaug rau 0. 20%
- ** MANAGUSE (MN): ** Tsawg dua lossis sib npaug nrog 1.60%
- ** SILICON (SI): ** tsawg dua lossis sib npaug rau 0. 50%
- ** Phosphorus (P): ** Tsawg dua lossis sib npaug rau 0. 035%
- ** SULFURRUR (S): ** Tsawg dua lossis sib npaug ntawm 0. 035%
Qhov txwv tseeb yuav sib txawv me ntsis nyob ntawm cov khoom lag luam thiab cov tuab. Alloy cov ntsiab xws li NB, V, lossis TI yuav raug ntxiv rau hauv cov nyiaj tsawg rau cov qoob loo qoob loo.
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** 5. Dab tsi yog lub ntsiab lus ntawm S35J2 m? **
Tus "m" nyob rau hauv ** s355j {1}} m ** (ib ** EN PROUNCECHANICT ** THICKSECHANIT DRING ** (MICK Rolling ua raws los ntawm kev txias txias). Tus txheej txheem no txhim kho lub zog thiab tawv tsis muaj post-rolling cua sov. Tus "m" cais nws los ntawm normalized ("n") lossis kub-tiav ("H") cov khoom.
