ASTM A312 stainless hlau kavyog dav siv nyob rau hauv chemical ua, roj & roj, khoom noj khoom haus, marine, thiab kev lag luam vim lawv zoo heev corrosion kuj thiab mechanical zog. Cov qib sib xws xws li TP304, TP304L, TP316, thiab TP316Lmuab cov yam ntxwv sib txawv ntawm kev ua haujlwm: TP304 thiab TP304L yog qhov zoo tagnrho rau kev siv corrosion dav dav-cov ntaub ntawv tiv taus, thaum TP316 thiab TP316L muab kev tiv thaiv zoo tshaj hauv cov tshuaj chloride- nplua nuj lossis marine ib puag ncig. Txhua qib sib txawv ntawm cov tshuaj muaj pes tsawg leeg, lub zog tensile, weldability, thiab nto tiav, muab cov engineers yooj yim hauv kev xaiv cov khoom. Rau cov neeg yuav khoom B2B thoob ntiaj teb, kev nkag siab txog qhov sib txawv no pab txhim kho kev xaiv cov khoom, tswj cov nqi, thiab ua kom ntev - lub sij hawm kev ntseeg siab.
ASTM A312 Stainless hlau yeeb nkab qib
| Qib | Cov yam ntxwv tseem ceeb | Daim ntawv thov |
|---|---|---|
| TIAB SA 304 | Siab corrosion kuj, zoo weldability, haum rau dav - siv | Cov kav dej tshuaj, kev kho dej, kev ua zaub mov |
| TP 304 L | Txo cov pa roj carbon ntsiab lus kom txo qis rhiab heev thaum vuam | Boiler tubing, welded qauv nyob rau hauv corrosive ib puag ncig |
| TIAB SA 316 | Superior corrosion kuj vim molybdenum ntxiv, muaj zog tiv thaiv chlorides | Marine cov cuab yeej, tshuaj ua haujlwm, roj & roj pipelines |
| TP 316 L | Tsawg carbon version ntawm TP316, zoo heev weldability, txo kev pheej hmoo ntawm intergranular corrosion | High -chloride ib puag ncig, welded qauv, kev siv tshuaj |
Chemical Composition Comparison (wt%)
| Qib | C | Cr | Ni | Mo | Mn | P | S | Fe |
|---|---|---|---|---|---|---|---|---|
| TIAB SA 304 | Tsawg dua lossis sib npaug li 0.08 | 18–20 | 8–10.5 | – | Tsawg dua los yog sib npaug 2 | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.03 | Tshuav |
| TP 304 L | Tsawg dua lossis sib npaug li 0.03 | 18–20 | 8–12 | – | Tsawg dua los yog sib npaug 2 | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.03 | Tshuav |
| TIAB SA 316 | Tsawg dua lossis sib npaug li 0.08 | 16–18 | 10–14 | 2–3 | Tsawg dua los yog sib npaug 2 | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.03 | Tshuav |
| TP 316 L | Tsawg dua lossis sib npaug li 0.03 | 16–18 | 10–14 | 2–3 | Tsawg dua los yog sib npaug 2 | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.03 | Tshuav |
Mechanical Properties
| Qib | Tensile zog (MPa) | Yield zog (MPa) | Elongation (%) | Hardness (HB) |
|---|
| TIAB SA 304 | 515–720 | Ntau dua lossis sib npaug rau 205 | Ntau dua lossis sib npaug li 40 | 170 |
| TP 304 L | 485–620 | Ntau dua lossis sib npaug li 170 | Ntau dua lossis sib npaug li 40 | 150 |
| TIAB SA 316 | 515–720 | Ntau dua lossis sib npaug rau 205 | Ntau dua lossis sib npaug li 40 | 170 |
| TP 316 L | 485–620 | Ntau dua lossis sib npaug li 170 | Ntau dua lossis sib npaug li 40 | 150 |
Nto tiav
ASTM A312 stainless hlau kav muaj nyob rau hauv ntau yam tiav kom haum rau ntau yam kev siv:
2B tiav- Smooth, muaj kev cuam tshuam, haum rau kev siv dav dav.
BA (Zoo Annealed)- High -gloss nto, zoo tagnrho rau kev kho kom zoo nkauj lossis tu cev.
Polished tiav- Daim iav-zoo li nto rau kev zoo nkauj lossis kev huv huv.
Cov khoom siv
Kev lag luam tshuaj thiab Petrochemical- TP316/316L kav dej tiv thaiv corrosion los ntawm acids, alkalis, thiab chlorides.
Marine thiab Offshore- Kev tiv thaiv zoo heev rau dej hiav txwv thiab chloride- thaj chaw nplua nuj.
Kev ua zaub mov thiab dej haus- TP304/304L kav dej kom huv si thauj thiab tu yooj yim.
Pharmaceuticals- Tsawg- carbon TP304L thiab TP316L cov kav dej tiv thaiv intergranular corrosion hauv welded systems.
Kev tsim kho & HVAC- Durable thiab qis -cov kav dej tu rau dej, roj, thiab cua xa tawm.
Kev Tshawb Fawb & Kev Pov Hwm Zoo
ASTM A312 stainless hlau kav yuav raug tswj xyuas nruj kom ntseeg tau tias muaj kev ntseeg siab:
Cov ntaub ntawv pov thawj- Mill Test Certificate (MTC) txheeb xyuas cov tshuaj thiab cov khoom siv tshuab.
Dimensional soj ntsuam- Phab ntsa thickness, OD, thiab ntev tau txheeb xyuas raws li ASTM A312 tus qauv.
Tsis yog -Kev kuaj kev puas tsuaj- Kev kuaj ultrasonic (UT), eddy tam sim no kuaj (ECT), thiab kuaj hydrostatic.
Thib peb-Kev Tshawb Fawb- ISO 9001, CE, lossis lwm lub koom haum pov thawj thoob ntiaj teb.
Export Ntim Standards
Cov kav dej tau muab khi thiab khi nrog lub kaus mom kawg tiv thaiv kom tsis txhob muaj kev puas tsuaj.
Corrosion- tiv taus cov ntaub qhwv los yog lub tes tsho yas rau kev xa khoom hauv hiav txwv / huab cua.
Ntoo crates lossis steel pallets loj - txoj kab uas hla lossis ntev - ntev kav.
Kev sau npe nrog qib, qhov loj me, lub sijhawm, tus lej xov tooj cua sov, thiab daim ntawv pov thawj siv rau kev taug qab.
FAQ
Q1: ASTM A312 stainless hlau yeeb nkab yog dab tsi?
A1: ASTM A312 qhia txog seamless thiab welded austenitic stainless hlau kav rau siab - kub thiab corrosion- resistant daim ntaub ntawv. Nws yog dav siv nyob rau hauv chemical, petrochemical, marine, zaub mov, thiab kev tsim kho kev lag luam.
Q2: Dab tsi yog cov qib tseem ceeb ntawm ASTM A312 kav?
A2: Cov qib feem ntau suav nrog TP304, TP304L, TP316, thiab TP316L. TP304/304L yog qhov tsim nyog rau kev tiv thaiv corrosion, thaum TP316/316L muab kev tiv thaiv zoo tshaj hauv cov tshuaj chloride{10}} nplua nuj los yog marine ib puag ncig.
Q3: Qhov txawv ntawm TP304 thiab TP304L yog dab tsi?
A3: TP304L muaj cov ntsiab lus qis dua (tsawg dua lossis sib npaug li 0.03%) dua li TP304 (tsawg dua lossis sib npaug li 0.08%), txo qis kev sib xyaw ua ke thaum vuam, ua kom haum rau cov qauv welded.
Q4: Qhov txawv ntawm TP316 thiab TP316L yog dab tsi?
A4: TP316L yog qhov qis-carbon version ntawm TP316, muab cov weldability zoo dua thiab txo qhov kev pheej hmoo ntawm kev puas tsuaj. Ob qib tiv thaiv chlorides thiab hnyav tshuaj ib puag ncig.
Q5: Puas yog ASTM A312 cov kav dej muaj nyob rau hauv seamless thiab welded daim ntawv?
A5: Yog. ASTM A312 npog ob leeg seamless thiab welded kav, tso cai xaiv raws li kev ntsuas siab, qhov ntev yuav tsum tau, thiab daim ntawv thov xav tau.
Q6: Dab tsi saum npoo tiav muaj?
A6: Cov kev ua tiav feem ntau suav nrog: 2B (kev lag luam du), BA (ci annealed rau kev tu cev lossis kho kom zoo nkauj), thiab polished / daim iav tiav rau kev huv lossis kev zoo nkauj.
Q7: Dab tsi kev lag luam feem ntau siv ASTM A312 kav?
A7: Cov ntawv thov nthuav dav kev ua tshuaj, roj & roj, khoom noj thiab dej haus, tshuaj, khoom siv hauv hiav txwv, HVAC, thiab kev tsim cov kav dej.
Q8: Qhov zoo ntawm ASTM A312 kav dej pov thawj li cas?
A8: Cov kav dej tau raug kuaj xyuas qhov ntev, ntsuas qhov tensile thiab tawm los, tsis yog- kuaj kev puas tsuaj (ultrasonic, eddy tam sim no), thiab thib peb- ntawv pov thawj tog xws li ISO 9001, CE, lossis MTC.
Q9: Cov kav dej ASTM A312 puas tuaj yeem ua haujlwm siab -siab lossis siab -kev siv kub?
A9: Yog. Nyob ntawm qib, lub sijhawm, thiab phab ntsa tuab, cov kav dej no tsim nyog rau siab -siab thiab siab siab- kev pabcuam kub.
Q10: ASTM A312 cov kav dej xa tawm li cas?
A10: Cov kav dej tau ntim nrog cov kaus mom kawg tiv thaiv, corrosion-tiv thaiv wrapping, thiab ntoo crates lossis steel pallets. Txhua pob ntawv sau npe nrog qib, qhov loj me, sijhawm teem sijhawm, tus lej xov tooj cua sov, thiab daim ntawv pov thawj siv.
Q11: Yuav ua li cas xaiv cov yeeb nkab raws sijhawm?
A11: Lub sijhawm kav yeeb nkab nyob ntawm kev khiav hauj lwm siab thiab kub. Cov sij hawm siab dua (piv txwv li, SCH 80, SCH 160) muab cov phab ntsa tuab dua thiab muaj peev xwm siab dua.
Q12: Dab tsi yog qhov corrosion-resistant zog ntawm txhua qib?
A12: TP304/304L tiv taus ib puag ncig me me, thaum TP316/316L ua tau zoo dua hauv cov tshuaj chloride- nplua nuj, dej hiav txwv, thiab siv tshuaj lom neeg.
Q13: Puas yog ASTM A312 cov kav dej haum rau vuam?
A13: Yog lawm, tag nrho cov qib tuaj yeem welded. Tsawg- carbon variants (TP304L thiab TP316L) yog qhov zoo dua rau cov tshuab welded los tiv thaiv intergranular corrosion.
Q14: Qhov loj npaum li cas rau ASTM A312 kav dej yog dab tsi?
A14: Cov kav dej muaj nyob ntawm 1/2 "mus rau 24" nominal diameters, nyob rau hauv cov txheej txheem txheej txheem xws li 5S, 10S, 40, 80, thiab 160. Kev cai ntau thiab tsawg kuj tuaj yeem tsim.
Q15: Cov kav dej no puas tuaj yeem siv rau hauv kev lag luam khoom noj thiab tshuaj?
A15: Yog lawm, TP304/304L thiab TP316/316L ua tau raws li cov qauv kev nyiam huv, yooj yim los ntxuav, thiab ua raws li kev cai huv.
Q16: Cov kav dej tau tshuaj xyuas li cas rau qhov raug?
A16: Txoj kab uas hla, phab ntsa thickness, ntev, thiab ncaj yog ntsuas siv cov cuab yeej precision raws li ASTM A312 tus qauv.
Q17: Lub sij hawm xa tuaj rau cov kav dej yog dab tsi?
A17: Lub sijhawm ua haujlwm nyob ntawm qhov loj me, qib, ntau, thiab lub sijhawm tsim khoom, feem ntau 2-6 lub lis piam rau cov qauv loj los ntawm cov neeg muag khoom loj.
Q18: Puas yog kev cai ntev thiab txiav - mus rau - qhov kev xaiv loj muaj?
A18: Yog lawm, cov chaw tsim khoom feem ntau muab kev txiav- mus rau -ntev lossis kev cai tsim cov kev pabcuam, suav nrog threading, beveling, thiab dabtsi yog khoov.
Q19: Tus nqi sib txawv li cas rau ASTM A312 kav?
A19: Nqe nyob ntawm qib, lub sijhawm, txoj kab uas hla, qhov ntau, qhov chaw tiav, thiab kev ua lag luam rau stainless hlau. TP316/316L cov kav dej feem ntau yog siab dua vim cov ntsiab lus molybdenum.
Q20: Cov ntawv pov thawj twg yuav tsum B2B cov neeg yuav khoom nrhiav?
A20: Cov ntawv pov thawj tseem ceeb suav nrog ISO 9001 cov txheej txheem zoo, CE ua raws li European kev lag luam, thiab Daim Ntawv Pov Thawj Zeb Xeem (MTC) lees paub cov khoom siv tshuaj thiab cov khoom siv.
