SS490 thiab SS540 yog Nyiv tus qauv qauv steels (JIS G3101) qhov sib txawv ntawm lub zog, nrog SS540 muab cov txiaj ntsig zoo dua thiab lub zog tensile ntau dua li SS490, ua rau nws haum rau cov khoom hnyav dua, thaum SS490 yog ntau yam, dav dav - lub hom phiaj steel; ob leeg muab cov weldability zoo tab sis SS540 lub zog nce los ntawm nws cov ntsiab lus siab dua (zoo li manganese), yuav tsum tau saib xyuas cov txheej txheem vuam rau cov phaj tuab.
Tshuaj muaj pes tsawg leeg
| Qib | C | Mn | P | S |
|---|---|---|---|---|
| SIB 540 | 0.30 | 1.60 | 0.04 | 0.04 |
| Qib | C Tsawg dua lossis sib npaug li 16 hli max | C>16mm max | Si max |
Mn max | P max. |
S max. |
| SIB 490 | 0.24 | 0.24 | 0.55 | 1.60 | 0.045 | 0.045 |
Mechanical khoom
|
Qib |
Thickness |
Yield |
Tensile |
Elongation |
|
SIB 540 |
mm |
Min Mpa |
Mpa |
Tsawg% |
|
Tsawg dua los yog sib npaug li 5 |
400 |
540 |
16 |
|
|
5-- Tsawg dua los yog sib npaug rau 16 |
13 |
|||
|
>16 |
390 |
17 |
|
Mechanical khoom |
||||||||
|
SIB 490 |
Yield zog (N / MM2) |
Tensile zog (N / MM2) |
Elongation |
|||||
|
TH (MM) |
Tsawg dua los yog sib npaug li 16 |
>16 Tsawg dua lossis sib npaug li 40 |
>40 Tsawg dua los yog sib npaug rau 100 |
>100 |
490-610 |
15 |
||
|
|
285 |
275 |
255 |
245 |
||||
Qhov txawv tseem ceeb
Lub zog:
SS490: Tsawg tawm los thiab lub zog tensile, haum rau cov qauv dav dav.
SS540: Lub zog siab dua, nrog lub zog tensile nyob ib puag ncig 540 MPa thiab lub zog tawm los Ntau dua lossis sib npaug li 355 MPa, zoo tagnrho rau cov ntawv siv hnyav- xws li txuas hniav, cov tshuab hnyav, thiab cov qauv hauv hiav txwv.
Muaj pes tsawg leeg: SS540 muaj cov ntsiab lus ntawm manganese ntau dua (tsawg dua lossis sib npaug li 1.60%) thiab sib txawv me ntsis rau carbon, silicon, phosphorus, thiab sulfur kom ua tiav nws lub zog siab dua.
Cov ntawv thov: SS490 yog rau kev tsim kho dav dav, thaum SS540 yog rau kev thov, siab -load scenarios.
Mechanical Properties: SS540 muab kev thauj khoom zoo dua -cov kabmob muaj peev xwm vim nws lub zog ntau dua, txawm tias SS490 tseem yog qhov kev xaiv muaj zog, txhim khu kev qha.
