SS400 yog ib txoj kev kos npe ntawm cov khoom siv hlau Japanese thiab cov qauv txiav txim.
Cov qauv hlau hauv cov qauv txawv teb chaws feem ntau raug faib raws li lub zog tensile, xws li SS400 (cim li hauv Nyij Pooj), qhov twg 400 sawv cev rau σ Qhov tsawg kawg nkaus tus nqi ntawm b yog 400MP.Ultra siab zog steel hais txog σ Steel tsis tsawg dua 1373 Mpa.
1. Cov ntsiab lus txawv
SS400: SS400 yog ib qho kev kos npe ntawm cov khoom siv hlau hauv Nyij Pooj thiab cov qauv txiav txim, sib npaug rau Q235 steel hauv Suav teb.
Q235: Q235 zoo tib yam carbon structural steel tseem hu ua A3 steel.Ordinary carbon structural steel phaj phaj yog ib yam khoom siv hlau.
2. Cov ntsiab lus sib txawv
Qhov taw tes tawm ntawm Q235 yog siab dua 235 MPa, thaum lub SS400 yog 245 MPa.
3. Cov lej sib txawv
Tus lej qauv ntawm Q235 yog GB / T700.Tus naj npawb ntawm SS400 yog JIS G3101.
4. Lub zog sib txawv
SS400: Cov qauv hlau hauv cov qauv txawv teb chaws feem ntau raug faib raws li lub zog tensile, xws li SS400 (cim raws li nyob rau hauv Nyiv), uas 400 txhais tau tias σ Qhov tsawg kawg nkaus tus nqi ntawm b yog 400MPa.Ultra siab zog steel hais txog σ B Steel tsis tsawg dua 1373 Mpa.
Q235: Q sawv cev rau qhov kev txwv ntawm cov khoom siv no.Cov nram qab no 235 yog hais txog tus nqi tawm ntawm cov khoom no, uas yog hais txog 235MPa.Tus nqi tawm los yuav txo nrog qhov nce ntawm cov khoom thickness.Vim muaj cov ntsiab lus ntawm cov pa roj carbon monoxide, cov khoom siv dav dav yog qhov zoo, thiab lub zog, plasticity thiab vuam cov khoom zoo sib xws.
5. Kev sib piv ntawm cov tshuaj muaj pes tsawg leeg ntawm Q235 thiab SS400
Q235B carbon C: tsis ntau tshaj 0.18
Q235B: 0.35-0.80
Q235B silicon Si: tsis ntau tshaj 0.3
Q235B sulfur S: tsis ntau tshaj 0.04
Q235B phosphorus P: tsis ntau tshaj 0.04
SS400 sulfur S: tsis ntau tshaj 0.05
SS400 Phosphorus P: tsis ntau tshaj 0.05
6. Kev sib piv ntawm cov khoom siv kho tshuab ntawm Q235 thiab SS400
Q235 yield zog: tsis tsawg tshaj 185
Q235 tensile zog: 375-500
Q235 elongation: tsis tsawg dua 21
SS400 yield zog: tsis pub tsawg tshaj 215
SS400 tensile zog: 400-510
SS400 elongation: tsis tsawg dua 17
Post lub sij hawm: Oct-25-2022
