Ob yamASTM A588 Qib Athiab A242 daim hlau tau dav siv cov tshuab hluav taws xob tiv thaiv cov hlau, tab sis lawv txawv hauv lub zog, muaj pes tsawg leeg, thiab cov ntawv thov raug.
ASTM A588 qib ib lub phaj yog qhov siab- lub zog, qis} alieco alirocial qauv siv corrospherity. Nws muaj qhov tsawg kawg los lub zog ntawm 50 ksi (≈345 MPa) thiab qhov tsawg kawg tensile lub zog ntawm 70 ksi (≈480 MPa).
Cov hlau no sib npaug rau Corten A thiab yog qhov tsim nyog rau welded, bolted, lossis riveted qauv uas ob lub zog thiab ntev} lub zog corrosion yog qhov tseem ceeb.
A242 lub phaj yog qhov qis - alloy alllo qauv txheej txheem thiab atmospheric corrosion yog qhov tseem ceeb. Nws muaj qhov tsawg kawg los lub zog ntawm 42 ksi (≈290 MPa) thiab ua rau nws qis dua hauv lub zog tshaj A588 qib ib tab sis tseem muab cov khoom tsis kam ua rau corrosion. A242 yog sib npaug rau Corten B.
Piv nrog cov kev siab siab - muaj zog tsawg {}}}}}}}}} sij hawm kev saib xyuas.
Cov Khoom Siv Neeg Kho Tshuab Sib Xws
| Ntiag tug | ASTM A588 Qib A | A242 Phaj |
|---|---|---|
| Yam tsawg kawg nkaus xwb Zog | 50 Ksi (345 MPa) | 42 KSI (290 MPA) |
| Yam tsawg kawg tensile lub zog | 70 Ksi (480 MPa) | 58 ksi (400 mpa) |
| Thickness Ntau Yam | 0.8-50 hli | 3-75 hli |
| Cov Kev Siv Raug Raug | Txuas hniav, vaj tse, tso tsheb hlau luam, txheej txheem kev lag luam | Txuas hniav, yees, cov tswv yim sab nraum zoov |
Cov tshuaj lom neeg feem ntau (wt%)
| Lub ntsiab | ASTM A588 Qib A | A242 Phaj |
|---|---|---|
| C | 0.10–0.19 | 0.12 max |
| Si | 0.15–0.30 | 0.15–0.30 |
| Mn | 0.90–1.25 | 0.80–1.25 |
| P | 0.04 max | 0.05 max |
| S | 0.05 max | 0.05 max |
| Cr | 0.40–0.65 | 0.30–0.50 |
| Ni | 0.40 max | 0.25 max |
| CU | 0.25–0.40 | 0.20–0.25 |
| Yam zoo | ASTM A588 Qib A | A242 Phaj |
|---|---|---|
| Sib npaug corten steel | Corten a | Corten B |
| Theem siab nyuaj | Siab dua | Tswj kav |
| Qhov hnyav siv tau | Lub hom phiaj | Zoo dua rau cov qauv sib zog |
| Corrosion Kuj | Zoo tshaj | Zoo tshaj |
| Pom zoo siv | High - Cov qauv sab nraum zoov | Cov qauv sab nraum zoov nrog kev tsim nyog thauj khoom, hnyav -} nkag |
