Cov yeeb nkab carbon steel Schedule 80 yog ib hom yeeb nkab uas muaj nws phab ntsa tuab dua piv rau lwm cov yeeb nkab, xws li Schedule 40. "Cov yeeb nkab" hais txog nws cov phab ntsa tuab, uas cuam tshuam rau nws qhov ntsuas siab thiab lub zog ntawm cov qauv.
Cov Yam Ntxwv Tseem Ceeb ntawm Schedule 80 Carbon Steel Pipe
1. Phab Ntsa Thickness: Thicker dua li Schedule 40, muab lub zog thiab kev ua haujlwm ntev dua.
2. Kev Ntsuas Siab: Kev ntsuas siab dua vim yog phab ntsa tuab ntxiv, ua rau nws tsim nyog rau kev siv siab.
3. Khoom siv: Ua los ntawm cov hlau carbon, uas muaj lub zog zoo thiab ruaj khov, nrog rau kev tiv thaiv kev hnav thiab tsim kua muag.
4. Cov ntawv thov:
Cov Kav Dej Lag Luam: Siv rau hauv kev lag luam xws li roj thiab roj av, kev ua tshuaj lom neeg, thiab kev tsim hluav taws xob.
Cov kav dej: Haum rau cov kav dej siab.
Kev Tsim Kho: Siv rau hauv cov ntawv thov kev tsim kho uas xav tau lub zog siab.
Cov Lus Qhia Txog Lub Sijhawm 80 Carbon Steel Pipe
| Qhov loj me me | DN | Sab nraud txoj kab uas hla | Sab nraud txoj kab uas hla | daim ntawv teev sijhawm 80 tuab | |
| Phab ntsa tuab | Phab ntsa tuab | ||||
| [nti] | [nti] | [hli] | [nti] | [hli] | |
| 1/2 | 15 | 0.84 | 21.3 | 0.147 | 3.73 |
| 3/4 | 20 | 1.05 | 26.7 | 0.154 | 3.91 |
| 1 | 25 | 1.315 | 33.4 | 0.179 | 4.55 |
| 1 1/4 | 32 | 1.66 | 42.2 | 0.191 | 4.85 |
| 1 1/2 | 40 | 1.9 | 48.3 | 0.200 | 5.08 |
| 2 | 50 | 2.375 | 60.3 | 0.218 | 5.54 |
| 2 1/2 | 65 | 2.875 | 73 | 0.276 | 7.01 |
| 3 | 80 | 3.5 | 88.9 | 0.300 | 7.62 |
| 3 1/2 | 90 | 4 | 101.6 | 0.318 | 8.08 |
| 4 | 100 | 4.5 | 114.3 | 0.337 | 8.56 |
| 5 | 125 | 5.563 | 141.3 | 0.375 | 9.52 |
| 6 | 150 | 6.625 | 168.3 | 0.432 | 10.97 |
| 8 | 200 | 8.625 | 219.1 | 0.500 | 12.70 |
| 10 | 250 | 10.75 | 273 | 0.594 | 15.09 |
Qhov Loj: Muaj ntau yam yeeb nkab loj (NPS), feem ntau yog txij li 1/8 nti mus txog 24 nti.
Cov Qauv: Ua raws li ntau yam qauv xws li ASTM A53, A106, thiab API 5L, uas qhia meej txog cov kev cai rau cov ntaub ntawv, qhov ntev, thiab kev ua tau zoo.
Cov Tshuaj Lom Zem ntawm Schedule 80 Carbon Steel Pipe
Daim Ntawv Teev Npe 80 yuav muaj qee qhov tuab uas tau teem tseg, tsis hais txog qib tshwj xeeb lossis cov khoom sib xyaw ntawm cov hlau siv.
| Qib A | Qib B | |
| C, siab tshaj plaws % | 0.25 | 0.3 |
| Mn, siab tshaj plaws % | 0.95 | 1.2 |
| P, siab tshaj plaws % | 0.05 | 0.05 |
| S, siab tshaj plaws % | 0.045 | 0.045 |
| Lub zog tensile, min [MPa] | 330 | 415 |
| Lub zog tawm los, min [MPa] | 205 | 240 |
Teem sijhawm 80 Cov Yeeb Nkab Hlau Carbon
Cov txiaj ntsig:
Muaj Zog Siab: Cov phab ntsa tuab muab kev txhim kho kom zoo dua.
Kev Ruaj Khov: Cov hlau carbon lub zog thiab kev tiv taus kev hnav ua rau cov kav dej no siv tau ntev.
Kev Siv Tau Ntau Yam: Haum rau ntau yam kev siv thiab kev lag luam.
Qhov Tsis Zoo:
Qhov Hnyav: Cov phab ntsa tuab dua ua rau cov kav dej hnyav dua thiab muaj peev xwm nyuaj dua rau kev tuav thiab teeb tsa.
Tus nqi: Feem ntau kim dua li cov kav dej uas muaj phab ntsa nyias dua vim yog kev siv cov khoom siv ntau ntxiv.
Lub sijhawm tshaj tawm: Tsib Hlis-24-2024