Cov8-nti ASTM A312 TP316 stainless hlau yeeb nkab SCH 80yog lub siab - zoo austenitic stainless hlau yeeb nkab tsim los rau corrosive thiab siab - siab siv kev lag luam, tshwj xeeb tshaj yog nyob rau hauvroj & roj pipelines. Ua raws li ASTM International ASTM A312 specification, TP316 muaj kev tiv thaiv zoo heev rau chloride corrosion, pitting, thiab crevice nres, ua rau nws zoo tagnrho rau offshore, petrochemical, thiab siab -salinity ib puag ncig.
Teem sijhawm 80 (SCH 80) qhia txog phab ntsa tuab, haum rau nruab nrab mus rau siab - cov kav dej siab, ua kom muaj zog thiab ntev - lub sijhawm ua haujlwm nyab xeeb.
Txheem & Khoom Txheej txheem cej luam
Specification:ASTM A312 / A312M / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / A312M / ASTM A312 / ASTM A312 / A312M / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / A312M / ASTM A312 / ASTM A312 / A312M / ASTM A312 / A312M / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312 / ASTM A312) thiab ASTM A312M
Qib:TP 316 (UNS S31600)
Teem caij:SCH 80
Nominal Pipe Loj:8 nti (NPS 8)
Dimension Standard:ASME B36.19M
Hom kev tsim khoom:Seamless (SMLS) / Welded (ERW / EFW)
Kev tshuaj xyuas daim ntawv pov thawj:EN 10204 3.1 / 3.2 muaj
TP316 muaj molybdenum, uas txhim kho corrosion kuj nyob rau hauv chloride - nplua nuj ib puag ncig xws li roj & roj pipelines.
8 "SCH 80 Pipe Dimensions & Nyhav
| NPS | OD (mm / nti) | Phab ntsa Thickness SCH 80 | Sab hauv Diameter (Approx.) | Nyhav ib Meter | Nyhav ib ko taw |
|---|---|---|---|---|---|
| 8" | 219.08 hli (8.625 ") | 10.97 hli (0.432 ") | 197.14 mm | 61.0kg / m | 40.9 lb / ft |
Nco tseg:
Dimensions ua raws li ASME B36.19M
Qhov hnyav yog kwv yees rau cov kav dej seamless; welded kav yuav txawv me ntsis
Tshuaj muaj pes tsawg leeg ntawm TP316
| Element | Kev sib xyaw (%) |
|---|---|
| C | Tsawg dua lossis sib npaug li 0.08 |
| Cr | 16.0 – 18.0 |
| Ni | 10.0 – 14.0 |
| Mo | 2.0 – 3.0 |
| Mn | Tsawg dua lossis sib npaug li 2.0 |
| Si | Tsawg dua los yog sib npaug rau 1.0 |
| P | Tsawg dua lossis sib npaug li 0.045 |
| S | Tsawg dua lossis sib npaug li 0.030 |
Molybdenum ntxiv muab kev tiv thaiv zoo tshaj rau pitting thiab crevice corrosion nyob rau hauv siab - salinity roj & roj ib puag ncig.
Mechanical Properties (yam tsawg kawg nkaus)
| Khoom | Tus nqi |
|---|---|
| Tensile zog | Ntau dua lossis sib npaug li 485 MPa |
| Yield zog | Ntau dua lossis sib npaug li 170 MPa |
| Elongation | Ntau dua lossis sib npaug li 35% |
| Hardness | Tsawg dua lossis sib npaug li 95 HRB |
TP316 tuav txhua yam kev ncaj ncees nyob rau hauv siab -siab thiab kub tej yam kev mob nyob rau hauv pipelines.
Vim li cas thiaj xaiv SCH 80 rau Roj & Roj Pipelines?
Muab kev tso cai ua haujlwm siab dua SCH 40
Ua kom muaj kev nyab xeeb nce ntxiv hauv kev siv cov raj xa dej tseem ceeb
Tsim nyog rau sab ntug dej hiav txwv thiab siab - cov txheej txheem siab
Sib npaug durability thiab nqi -effectiveness
Tej kev siv
🛢 Roj & Gas Kev Lag Luam
Siab - cov roj av thiab cov kav dej siab siab
Offshore thiab onshore txheej txheem kab
Tshuaj txhaj cov kav dej
Kev lag luam Petrochemical kev lag luam tau txais txiaj ntsig los ntawm kev lag luam kev lag luam
Kev hloov tshuaj corrosive
Cov kav dej ntsev tuav
⚡ Fais fab & Kev cog qoob loo
Siab -kub dej los yog cov kav dej
Cov kav dej txias
🌍 Marine & Seawater Systems
Seawater txias pipelines
Desalination cog pipelines
Seamless vs Welded TP316 yeeb nkab
| Hom | Pom zoo siv |
|---|---|
| Seamless | Siab -siab, qhov tseem ceeb ntawm cov kav dej |
| Welded | Cov kav dej dav dav rau qis - kev pabcuam siab |
| EFW | Large-diameter pipelines, usually >12" |
Rau 8 "SCH 80 pipeline hauv roj & roj,seamless yeeb nkab feem ntau nyiamkom zoo dua mechanical kev ua tau zoo.
Kev Tshuaj Xyuas & Kev Tswj Xyuas Zoo
Tshuaj ntsuam xyuas muaj pes tsawg leeg
Tensile thiab hardness kuaj
Kev ntsuam xyuas hydrostatic
Kev kuaj ultrasonic (UT)
Kev ntsuas hluav taws xob (RT)
PMI (Positive Material Identification)
EN 10204 3.1 / 3.2 ntawv pov thawj
Thib peb-kev soj ntsuam tog (SGS / BV / TUV raws li kev thov)
Tag nrho cov xov tooj cua sov traceability yog tus qauv rau EPC cov haujlwm.
Qhov Zoo Tshaj Plaws rau Cov Roj & Roj Pipelines
✔ Kev tiv thaiv zoo heev rau chloride -induced corrosion
✔ Siab - muaj peev xwm siab (SCH 80 phab ntsa)
✔ Haum rau cov kav dej sab nrauv thiab sab nrauv
✔ Kev ua haujlwm zoo tshaj plaws hauv cov tshuaj lom neeg hnyav
✔ Zoo weldability thiab fabrication yooj
✔ Ntev - lub sijhawm ua haujlwm kev ntseeg siab
FAQ
1️⃣ 8" ASTM A312 TP316 SCH 80 stainless hlau yeeb nkab yog dab tsi?
Nws yog 8-inch nominal txoj kab uas hla austenitic stainless hlau yeeb nkab tsim nyob rau hauv ASTM International ASTM A312 specification. SCH 80 qhia txog phab ntsa tuab (10.97 hli / 0.432 ") haum rau nruab nrab mus rau high-pressure pipelines. TP316 muaj molybdenum rau superior tiv taus chloride corrosion thiab pitting, zoo tagnrho rau cov roj & roj siv.
2️⃣ Vim li cas TP316 nyiam tshaj TP304 hauv cov roj & roj kav?
TP316 muaj 2-3% molybdenum, uas ua rau muaj kev tiv thaiv rau pitting thiab crevice corrosion nyob rau hauv saline thiab tshuaj ib puag ncig.
TP304 tsis muaj molybdenum, ua rau nws tsis haum rau cov kav dej sab nrauv lossis cov tshuaj chloride- cov kua dej nplua nuj.
3️⃣ Teem sijhawm 80 yog dab tsi thiab vim li cas nws tseem ceeb?
Teem sijhawm 80 (SCH 80) txhais cov yeeb nkab phab ntsa tuab raws li ASME B36.19M.
Rau 8" yeeb nkab: phab ntsa thickness=10.97 hli (0.432").
Muab kev tso cai ua haujlwm siab dua thiab muaj kev nyab xeeb zoo dua piv rau SCH 40.
4️⃣ Can 8" TP316 SCH 80 tuaj yeem tiv taus siab -siab thiab siab- qhov kub thiab txias?
Yog lawm. SCH 80 muab cov qauv tsim muaj zog ntxiv, thiab TP316 tswj nws cov kev ua haujlwm ruaj khov nyob rau hauv qhov kub thiab txias thiab siab - cov kev kub ntxhov xws li cov roj & cov kav dej.
5️⃣ Puas yog seamless lossis welded yeeb nkab zoo dua rau 8 "SCH 80 TP316?
| Hom | Pom zoo siv |
|---|---|
| Seamless | Siab -siab, ntu tseem ceeb ntawm cov kav xa dej, kev pabcuam sab nraud |
| Welded | General industrial piping nrog nruab nrab siab |
| EFW | Large-diameter pipelines (>12") |
Rau siab - roj & roj pipelines,seamless kav yog nyiamrau kev ntseeg siab thiab niaj hnub phab ntsa thickness.
6️⃣ Dab tsi yog daim ntawv thov ntawm 8 "TP316 SCH 80 yeeb nkab hauv roj & roj?
Offshore thiab onshore crude roj thiab roj pipelines
Siab - cov kab txheej txheem siab
Tshuaj txhaj kab
Cov kav dej ntsev tuav
Petrochemical tsob nroj txheej txheem piping
7️⃣ Qhov kev tiv thaiv corrosion ntawm TP316 yog dab tsi?
Zoo heev tiv thaiv chlorides thiab dej hiav txwv
Resistant rau pitting thiab crevice corrosion
Ua tau zoo nyob rau hauv me ntsis acids thiab oxidizing ib puag ncig
Rau cov tshuaj chloride heev, TP316L lossis duplex stainless hlau yuav raug txiav txim siab.
8️⃣ Puas yog 8 "TP316 SCH 80 tuaj yeem welded thiab fabricated yooj yim?
Yog lawm. TP316 yog qhov zoo heev uas siv TIG, MIG, lossis arc vuam. Rau cov kav xa dej tseem ceeb, tom qab -weld passivation yog pom zoo kom rov qab kho corrosion.
9️⃣ Cov ntaub ntawv tshuaj xyuas thiab ntawv pov thawj dab tsi feem ntau muab?
EN 10204 3.1 / 3.2 Mill Test Certificate (MTC)
Daim ntawv qhia txog tshuaj muaj pes tsawg leeg
Mechanical test report
Hydrostatic test report
Kev kuaj ultrasonic (UT) lossis kuaj hluav taws xob (RT)
PMI (Positive Material Identification)
Thib peb-kev soj ntsuam tog (SGS / BV / TUV)
Tag nrho cov xov tooj cua sov traceability yog tus qauv rau EPC thiab cov haujlwm ua haujlwm.
🔟 Yuav ua li cas xaiv tus neeg muag khoom txhim khu kev qha rau 8 "TP316 SCH 80 stainless yeeb nkab?
Ua raws li ASTM A312
Qhov tseeb qhov ntev kam rau ua rau ASME B36.19M
Daim ntawv pov thawj tshuaj lom neeg thiab khoom siv zoo
Thaum tshav kub kub tooj traceability rau qhov project accountability
Cov kev paub dhau los hauv cov roj & roj lossis EPC cov kav dej
Muaj peev xwm pab txhawb kev soj ntsuam thib peb - tog
