Txheej txheem txheej txheem
ASTM A312 TP304 Teem sijhawm 40 stainless hlau yeeb nkabyog ib qho ntawm feem ntau tau teev tseg austenitic stainless hlau kav rau kev lag luam piping systems thoob ntiaj teb. Ua raws li ASTM International tus qauvASTM A312, TP304 (UNS S30400) SCH 40 yeeb nkabmuaj kev tiv thaiv corrosion zoo heev, muaj zog txhua yam kev ua tau zoo, thiab txhim khu kev qha weldability rau roj & roj, tshuaj ua haujlwm, kev kho dej, thiab kev tsim kho. Muaj nyob rau hauv seamless thiab welded hom, 304 Teem caij 40 stainless hlau yeeb nkab yog tus nqi - siv tau zoo rau nruab nrab - siab thiab dav corrosive kev pab cuam ib puag ncig, ua rau nws yog ib qho kev xaiv rau ntiaj teb no B2B buyers thiab EPC neeg cog lus.
KeyWord
ASTM A312 TP 304 yeeb nkab
304 stainless hlau yeeb nkab
Teem caij 40 stainless hlau yeeb nkab
TP304 seamless yeeb nkab
304 welded stainless hlau yeeb nkab
SCH 40 stainless hlau yeeb nkab
UNS S30400 tub
ASTM A312 yeeb nkab chaw tsim tshuaj paus
ASTM A312 TP304 Teem sijhawm 40 yeeb nkab qhov ntev
304 Teem caij 40 yeeb nkab hnyav daim ntawv qhia
TP304 SCH 40 seamless yeeb nkab nqe
304 stainless hlau yeeb nkab thickness SCH 40
ASTM A312 TP304 yeeb nkab tshuaj muaj pes tsawg leeg
TP304 yeeb nkab mechanical zog
304 stainless hlau yeeb nkab OD thiab phab ntsa thickness
ASME B36.19M Teem sijhawm 40 stainless yeeb nkab
ASTM A312 TP304 yeeb nkab
304 stainless hlau yeeb nkab chaw tsim tshuaj paus nyob rau hauv Suav teb
TP304 Teem sijhawm 40 yeeb nkab xa tawm
304 stainless hlau yeeb nkab rau roj thiab roj
Muaj 304 stainless hlau yeeb nkab Hoobkas
ASTM A312 stainless hlau yeeb nkab stockist
TP304 yeeb nkab MTC 3.1 tau ntawv pov thawj
304 stainless hlau yeeb nkab rau tshuaj lom neeg kev lag luam
304 yeeb nkab rau kev kho dej
TP304 yeeb nkab rau kev ua zaub mov
304 stainless hlau yeeb nkab rau kev tsim kho
Corrosion resistant Teem caij 40 stainless yeeb nkab
ASTM A312 TP304 Teem sijhawm 40 stainless hlau yeeb nkabyog ib qho dav siv austenitic stainless hlau yeeb nkab tsim los rau siab - kub thiab kev pabcuam corrosive. Nws yog tsim raws li cov cai ntawm ASTM International raws li ASTM A312 / A312M specification.
Txheem: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:TP304 (UNS S30400)
Cov Txheej Txheem Yeeb Nkab:SCH 40
Dimension Standard:ASME B36.19M
Hom kev tsim khoom:Seamless (SMLS) los yog Welded (WLD)
Kev soj ntsuam daim ntawv pov thawj:EN 10204 3.1 / 3.2 muaj
TP304 yog ib qho ntawm cov qib stainless hlau xav tau tshaj plaws hauv ntiaj teb kev lag luam piping systems vim nws zoo heev corrosion kuj, durability, thiab nqi -kev ua tau zoo piv.
TP304 Stainless hlau yog dab tsi?
TP304 yog 18-8 austenitic stainless hlauuas muaj kwv yees li:
18-20% Chromium
8-11% Nickel yog '
Cov tshuaj no muaj zog tiv thaiv oxidation thiab corrosion nyob rau hauv atmospheric, dej, thiab tshuaj lom neeg ib puag ncig. Nws tsis yog -sib nqus nyob rau hauv annealed mob thiab muaj zoo weldability yam tsis tas yuav preheating.
Tshuaj muaj pes tsawg leeg (ASTM A312 TP304)
| Element | Cov ntsiab lus (%) |
|---|---|
| C | Tsawg dua lossis sib npaug li 0.08 |
| Mn | Tsawg dua lossis sib npaug li 2.00 |
| Si | Tsawg dua lossis sib npaug li 1.00 |
| P | Tsawg dua lossis sib npaug li 0.045 |
| S | Tsawg dua lossis sib npaug li 0.030 |
| Cr | 18.0 – 20.0 |
| Ni | 8.0 – 11.0 |
| N | Tsawg dua lossis sib npaug li 0.10 |
Mechanical Properties
| Khoom | Yam tsawg kawg nkaus |
|---|---|
| Tensile zog | 515 MPa ua |
| Yield zog | 205 MPa |
| Elongation | 35% |
| Hardness | Tsawg dua lossis sib npaug rau 201 HB |
TP304 tuav zoo toughness ntawm ob qho tib si qis thiab nruab nrab kub.
Teem caij 40 Thickness piav qhia
"Schedule 40" yog hais txog phab ntsa thickness kev faib tawm los ntawm ASME B36.19M rau stainless hlau kav.
Piv txwv:
| NPS | OD (mm) | Phab ntsa Thickness (mm) | Phab ntsa Thickness (inch) |
|---|---|---|---|
| 1" | 33.40 | 3.38 | 0.133" |
| 2" | 60.33 | 3.91 | 0.154" |
| 4" | 114.30 | 6.02 | 0.237" |
| 6" | 168.28 | 7.11 | 0.280" |
Teem sijhawm 40 muaj qhov sib npaug ntawm phab ntsa tuab haum rau nruab nrab -siab kev lag luam tshuab.
Kev tsim khoom
ASTM A312 TP304 cov kav dej tuaj yeem tsim los ntawm:
1️⃣ Seamless Yeeb Nkab
Billet tho qhov
Kub dov lossis kos duab txias
Kev daws annealing
Pickling los yog ci annealing
2️⃣ welded yeeb nkab
Stainless hlau sawb txoj kev
Tsis siv neeg TIG lossis laser vuam
Kev kho cua sov
Tsis yog -kev kuaj kev puas tsuaj (UT / RT / Eddy tam sim no)
Cov kav dej tsis sib haum yog nyiam rau siab - kev pabcuam siab, thaum cov kav dej welded muab kev xaiv pheej yig dua rau cov qauv thiab qis - kev siv siab.
Corrosion Resistance Performance
TP304 muaj:
Zoo heev tiv thaiv atmospheric corrosion
Kev tiv thaiv zoo rau cov dej tshiab thiab cov tshuaj me me
Muaj zog oxidation tsis kam mus txog 870℃(kev pabcuam cuam tshuam)
Txawm li cas los xij, nws tsis pom zoo rau cov tshuaj chloride- nplua nuj marine ib puag ncig uas pitting corrosion yuav tshwm sim. Hauv cov xwm txheej zoo li no, TP316 yuav tsim nyog dua.
Cov ntawv thov loj
🏭 Roj & Gas Kev Lag Luam
Txheej txheem kav dej
Refinery hloov kab
Instrumentation tubing
🧪 Chemical Industry
Acid thauj pipelines
Thaum tshav kub kub exchangers
Reactor kav dej
💧 Kev kho dej
Desalination ua ntej- kho tshuab
Industrial pipelines dej
🍽 Khoom noj khoom haus & dej haus
Hygienic piping systems
Mis thiab dej haus cov kab ntau lawm
🏗 Kev Tsim Kho & Infrastructure
Kev tsim cov kav dej
Decorative exposed stainless hlau systems
Cov kab tiv thaiv hluav taws
Qhov zoo ntawm TP304 Teem sijhawm 40 Yeeb Nkab
✔ Zoo heev corrosion kuj
✔ Zoo txhua yam muaj zog
✔ Yooj yim fabrication thiab vuam
✔ Hygienic thiab yooj yim los ntxuav
✔ Ntiaj teb no standardized dimension
✔ Tus nqi - zoo rau kev lag luam loj
Kev Tswj Xyuas Zoo & Kev Xeem
Professional manufacturers feem ntau muab:
Spectrometer tshuaj ntsuam xyuas
Tensile & flattening xeem
Kev ntsuas hydrostatic siab
PMI (Positive Material Identification)
Kev kuaj ultrasonic (UT)
Kev ntsuas hluav taws xob (RT)
Thib peb-kev tshuaj ntsuam xyuas (SGS, BV, TUV)
Tag nrho traceability nrog kub tooj cim yog tus qauv rau export tej yaam num.
TP304 vs TP304L - Kev sib piv ceev
| Yam khoom | TIAB SA 304 | TP 304 L |
|---|---|---|
| Cov ntsiab lus carbon | Tsawg dua lossis sib npaug li 0.08% | Tsawg dua lossis sib npaug li 0.03% |
| Weld Corrosion Risk | Nruab nrab | qis |
| Intergranular Corrosion Resistance | Zoo | Zoo dua |
| Nqi | Tsawg me ntsis | Siab dua me ntsis |
TP304L raug pom zoo rau cov haujlwm vuam hnyav lossis qhov chaw muaj kev cuam tshuam loj heev.
FAQ
1️⃣ ASTM A312 TP304 Teem sijhawm 40 stainless hlau yeeb nkab yog dab tsi?
ASTM A312 TP304 Teem caij 40 yeeb nkab yog austenitic stainless hlau yeeb nkab tsim raws li tus qauv muab los ntawm ASTM International. Nws yog tsim los rau siab - kub thiab dav corrosive kev pab cuam, nrog Schedule 40 xa mus rau ib tug standardized phab ntsa thickness nyob rau hauv ASME B36.19M.
2️⃣ Qhov txawv ntawm TP304 thiab TP304L yog dab tsi?
Qhov sib txawv tseem ceeb yog cov ntsiab lus carbon:
TP304: Tsawg dua lossis sib npaug rau 0.08% carbon
TP304L: Tsawg dua lossis sib npaug rau 0.03% carbon
TP304L muaj kev tiv thaiv zoo dua rau intergranular corrosion tom qab vuam. Rau cov vuam hnyav lossis cov tshuaj tseem ceeb, TP304L feem ntau pom zoo.
3️⃣ Teem sijhawm 40 txhais li cas hauv cov kav hlau stainless?
Teem caij 40 (SCH 40) txhais cov phab ntsa tuab ntawm cov yeeb nkab. Nws cuam tshuam:
Kev ntsuas siab
Nyhav ib 'meter'
Mechanical zog
Piv txwv li, 2-nti TP304 SCH 40 yeeb nkab muaj phab ntsa tuab ntawm kwv yees li 3.91 hli (0.154 nti).
4️⃣ Puas yog TP304 Teem sijhawm 40 yeeb nkab haum rau kev siv roj thiab roj?
Yog, nws yog feem ntau siv nyob rau hauv:
Tsawg mus rau nruab nrab - cov txheej txheem siab piping
Refinery hloov kab
Instrumentation systems
Txawm li cas los xij, rau cov tshuaj chloride siab lossis qhov chaw nyob sab nraud, TP316 yuav tsim nyog dua vim kev txhim kho pitting tsis kam.
5️⃣ Cov khoom tsim muaj dab tsi?
ASTM A312 TP304 cov kav dej muaj xws li:
Seamless (SMLS)
Welded (WLD)
Txias ua haujlwm
Cov kav dej tsis sib haum yog nyiam rau siab - lub zog siab, thaum cov kav dej welded muab tus nqi - siv tau zoo rau cov qauv siv los yog tsawg - siv siab.
6️⃣ Cov ntawv pov thawj dab tsi feem ntau muab rau kev xa tawm?
Professional manufacturers feem ntau muab:
EN 10204 3.1 MTC
Daim ntawv qhia PMI (Positive Material Identification).
Hydrostatic test report
Thib peb-kev soj ntsuam tog (SGS / BV / TUV raws li kev thov)
Qhov no ua kom tag nrho traceability thiab ua raws li thoob ntiaj teb EPC tej yaam num.
7️⃣ Dab tsi kev lag luam feem ntau siv TP304 Teem sijhawm 40 kav dej?
Cov lag luam loj muaj xws li:
Roj & Roj
Kev ua tshuaj lom neeg
Kev kho dej
Khoom noj & dej haus
Kev tsim hluav taws xob
Kev tsim kho & infrastructure
Nws cov corrosion kuj thiab fabrication kev ua tau zoo ua rau nws muaj ntau yam.
8️⃣ Qhov ntsuas kub dab tsi tuaj yeem tiv taus TP304?
TP304 stainless hlau yeeb nkab tuaj yeem tiv taus:
Kev pabcuam txuas ntxiv mus txog kwv yees li 870℃(intermittent)
Kev ua tau zoo nyob rau hauv qis - qhov kub thiab txias ib puag ncig vim muaj zog toughness
9️⃣ Cov kav dej ASTM A312 TP304 zoo li cas?
Kev tswj kom zoo feem ntau suav nrog:
Tshuaj ntsuam xyuas muaj pes tsawg leeg
Tensile thiab flattening xeem
Kev ntsuas hydrostatic siab
Kev kuaj ultrasonic (UT)
Kev ntsuas hluav taws xob (RT)
Kev tshuaj xyuas saum npoo
Cov xov tooj cua sov yog cim rau tag nrho cov khoom siv traceability.
🔟 Kuv yuav xaiv qhov chaw tsim khoom ASTM A312 TP304 li cas?
Thaum xaiv ib tus neeg muag khoom, xav txog:
Ua raws li ASTM A312 tus qauv
Ua kom tiav cov ntaub ntawv tshuaj xyuas
Dimensional kam rau ua tswj
Export kev
ruaj khov raw khoom nrhiav
Ntawm - lub sijhawm xa khoom muaj peev xwm
Lub chaw tsim khoom lag luam yuav tsum muab ob qho kev txhawb nqa thiab kev daws teeb meem thoob ntiaj teb.
