Cov kav dej carbon steel Schedule 40 raug faib ua pawg raws li kev sib xyaw ua ke ntawm cov yam xws li qhov sib piv ntawm txoj kab uas hla mus rau phab ntsa, lub zog ntawm cov khoom siv, txoj kab uas hla sab nraud, phab ntsa tuab, thiab lub peev xwm siab.
Cov npe teev sijhawm, xws li Teev Sijhawm 40, qhia txog kev sib xyaw ua ke ntawm cov yam no. Rau Cov Kav Dej Teev Sijhawm 40, lawv feem ntau muaj qhov tuab ntawm phab ntsa nruab nrab, ua kom muaj kev sib npaug ntawm lub zog thiab qhov hnyav. Qhov hnyav ntawm cov kav dej tuaj yeem sib txawv raws li cov yam xws li qib tshwj xeeb ntawm cov hlau carbon siv, txoj kab uas hla, thiab phab ntsa tuab.
Ntxiv cov pa roj carbon rau hauv cov hlau tuaj yeem cuam tshuam rau qhov hnyav, nrog rau cov pa roj carbon ntau dua feem ntau ua rau cov kav dej sib dua. Txawm li cas los xij, ob qho tib si phab ntsa tuab thiab txoj kab uas hla kuj ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab qhov hnyav.
Cov kav dej hlau Schedule 40 yog suav tias yog chav kawm siab nruab nrab, tsim nyog rau ntau yam kev siv uas xav tau qhov ntsuas siab nruab nrab. Yog tias koj xav tau cov ntaub ntawv ntxaws ntxiv lossis kev pab txog cov kav dej hlau Schedule 40, thov hu rau peb kom tau kev pab ntxiv.
Cov Lus Qhia Txog Lub Sijhawm 40 Carbon Steel Pipe
| Qhov loj me me | DN | Sab nraud txoj kab uas hla | Sab nraud txoj kab uas hla | daim ntawv teev sijhawm 40 tuab | |
| Phab ntsa tuab | Phab ntsa tuab | ||||
| [nti] | [nti] | [hli] | [nti] | [hli] | |
| 1/2 | 15 | 0.84 | 21.3 | 0.109 | 2.77 |
| 3/4 | 20 | 1.05 | 26.7 | 0.113 | 2.87 |
| 1 | 25 | 1.315 | 33.4 | 0.133 | 3.38 |
| 1 1/4 | 32 | 1.66 | 42.2 | 0.14 | 3.56 |
| 1 1/2 | 40 | 1.9 | 48.3 | 0.145 | 3.68 |
| 2 | 50 | 2.375 | 60.3 | 0.154 | 3.91 |
| 2 1/2 | 65 | 2.875 | 73 | 0.203 | 5.16 |
| 3 | 80 | 3.5 | 88.9 | 0.216 | 5.49 |
| 3 1/2 | 90 | 4 | 101.6 | 0.226 | 5.74 |
| 4 | 100 | 4.5 | 114.3 | 0.237 | 6.02 |
| 5 | 125 | 5.563 | 141.3 | 0.258 | 6.55 |
| 6 | 150 | 6.625 | 168.3 | 0.28 | 7.11 |
| 8 | 200 | 8.625 | 219.1 | 0.322 | 8.18 |
| 10 | 250 | 10.75 | 273 | 0.365 | 9.27 |
Cov yeeb nkab hlau carbon Schedule 40 yog ib qho kev ntsuas qhov loj ntawm cov yeeb nkab uas siv rau hauv kev lag luam kev tsim kho. Nws yog hais txog qhov tuab ntawm phab ntsa yeeb nkab thiab yog ib feem ntawm ib qho kev ntsuas uas siv los faib cov yeeb nkab raws li lawv qhov tuab ntawm phab ntsa thiab lub peev xwm siab.
Hauv lub txheej txheem Schedule 40:
- Tus "Teem sijhawm" yog hais txog qhov tuab ntawm phab ntsa ntawm cov yeeb nkab.
- "Cov hlau carbon" qhia txog cov khoom siv sib xyaw ntawm cov yeeb nkab, uas feem ntau yog carbon thiab hlau.
Cov kav dej hlau Schedule 40 feem ntau siv rau ntau yam kev siv, suav nrog kev thauj mus los ntawm dej thiab roj, kev txhawb nqa cov qauv, thiab cov hom phiaj kev lag luam dav dav. Lawv paub txog lawv lub zog, kev ruaj khov, thiab kev hloov pauv tau yooj yim, ua rau lawv yog qhov kev xaiv nrov hauv ntau qhov kev tsim kho thiab kev tsim kho.
Cov Tshuaj Lom Zem ntawm Schedule 40 Carbon Steel Pipe
Daim Ntawv Teev Npe 40 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 |
Lub sijhawm tshaj tawm: Tsib Hlis-24-2024