Dab tsi yog aym ay572 qib 42 cov thawv roj carbon phaj
ASTM A572 Qib 42 yog qhov siab- lub zog qis {}}}}}) steel encial) (hsla) Txuam nrog Columbium (Niobium) thiab Vanadium, nws ua pov thawj zoo heev.
Feem ntau thov hauv tus choj steel phiaj rau luv {{0}-}}}} Cov tuam txhab muaj txiaj ntsig zoo li qub. Raws li cov qauv siv roj carbon steel, nws yog qhov haum rau welded los yog bolted sib dhos hauv cov tshuab uas dav dav thiab teeb huab cua dav dav.
Gnee's A572 Qeb 42 daim hlau ua raws li Astm specifications, ua kom muaj kev kawm zoo ib yam rau kev nkag mus rau kev nkag.
Tshuaj lom neeg muaj pes tsawg leeg ntawm Astm A572 Gr.42
TusTshuaj Tsim Khontawm ASTM A572 GR.42 yog qhov zoo rauhwj txwvthiabMuaj Zog Muaj ZogCov. Raug pes tsawg leeg:
| Lub ntsiab | Cov ntsiab lus (%) |
|---|---|
| Carbon (c) | Tsawg dua los yog sib npaug rau 0.21 |
| Manganese (mn) | Tsawg dua los yog sib npaug rau 1.35 |
| Phosphorus (p) | Tsawg dua los yog sib npaug rau 0.04 |
| Sulphur (s) | Tsawg dua los yog sib npaug rau 0.05 |
| Silicon (si) | Tsawg dua los yog sib npaug rau 0.40 |
| Vanadium (V) | 0.01–0.15 |
| Columbium / Niobium (NB) | 0.005–0.05 |
| Tooj Liab (Cu) (yeem) | Ntau dua los yog sib npaug rau 0.20 |
Qhov no tsawg - cov tshuaj ntsuab carbon rauYooj Yim Vuam, thaum lub sij hawm alloying txhim khu kevCov Khoom Siv Neeg Kho Tshuabthiab tag nrhoua tau zoo ruaj khov.
Cov cuab yeej kho tshuab ntawm Astm A572 Qeb 42
ASTM A572 Qib 42 muabTxhim khu kev ua haujlwm zooRau cov qauv kev siv dav dav:
| Ntiag tug | Tus nqi |
|---|---|
| Yam tsawg kawg nkaus xwb Zog | 290 mpa (42 ksi) |
| Lub zog tensile | Ntau dua los yog sib npaug rau 415 MPa (60 ksi) |
| Elongation (200mm) | Ntau dua los yog sib npaug rau 20% |
| Elongation (50 hli) | Ntau dua los yog sib npaug rau 24% |
| Charpy Feem (0 Degree, yeem) | Ntau dua los yog sib npaug rau 27 j |
Cov khoom no muabmuaj zog txausthaum tswjzoo ductilityrau cov qauv teeb.
Cov qhab nia thoob ntiaj teb cov qhab nia ntawm Astm A572 Gr.42
| Lub hom phiaj | Xws li qib |
|---|---|
| EN 10025 | S275JR / S275J0 |
| Din | St44-3 |
| JIS | SS490 |
| Tus kab laug gb | Q275B |
| Bs | 43A / 43B |
Cov kev sib txig sib luagKev ua lag luam thoob ntiaj teb thiab kev sib piv.
Cov ntawv thov ntawm Astm A572 Qib 42 Hlau Phaj
Hlav choj
Tsawg -} Rose vaj tse
Kev Machinery thiab kev tsim khoom
NwsCov Khoom Siv NtsigUa kom nws zoo tagnrho rauGeneral - Lub Hom Phiaj Qauv Hlau Project.
