SM490YB steel phaj yog Japanese tus qauv qis alloy siab zog steel, kev siv ntawm JISG3106 Japanese tus qauv. 'S' hauv qib SM490YB qhia lub ntsiab lus ntawm cov qauv hlau, thiab 'M' yog lub rooj zaum tig rau vuam, thiab lub zog tensile ntawm SM490YB tsis tsawg dua 490MPa.
SM490YB Kev Ua Haujlwm Txuj Ci: Japanese Industrial Standard JISG3016.
SM490YB Tus me nyuam lub xeev: normalized (lwm lub xeev tus me nyuam tuaj yeem teev tau).
SM490YB Flaw detection level: 'ib sojntsuam, ob sojntsuam, peb sojntsuam'.
SM490YB Thickness tuaj yeem ua tiav Z kev ua haujlwm: 'Z15, Z25, Z35'.
SM490YB Kev ua tau zoo tuaj yeem ua tiav: tensile zog (yield, tensile, elongation) index tus nqi tshaj tus qauv yuav tsum tau.
SM490YB steel phaj loj, cov duab, qhov hnyav thiab tso cai sib txawv: Qhov kev sib txawv ntawm qhov tso cai yuav tsum ua raws li JIS G 3192, JIS G 3193, JIS G 3194.
SM490YB Ceev: 7.85 / m3. SM490YB Rational nyhav formula: thickness * dav * ntev * ceev.
SM490YB steel phaj scope ntawm daim ntawv thov: SM490YB yog ib yam ntawm cov qauv hlau ua raws li tus qauv Japanese JIS G3106, lub zog σb yog 490MPa. tus qauv no siv tau rau cov txuas hniav, nkoj, tsheb, cov roj av cia tank, cov chaw tsim khoom, kev tsim kho dav dav thiab txhua yam ntawm cov tshuab engineering, xws li mines thiab txhua yam kev tsim kho engineering nrog.
