Steel 904L phaj, tseem hu ua UNS N08904 lossis 1.4539, yog qhov siab -kev ua tau zoo super- austenitic stainless hlau uas muaj kev tiv thaiv zoo rau sulfuric acid, phosphoric acid, thiab chloride- nplua nuj ib puag ncig. Ntawm peb lub tuam txhab tshwj xeeb hauv cov khoom lag luam stainless hlau thiab npib tsib xee alloy, peb tsim 904L daim hlau txhua lub lim tiam rau ASTM B625, ASME SB625, thiab EN 1.4539 cov qauv.
Hauv tsab xov xwm no peb nthuav qhia meej, mus txog - mus rau - hnub tim cov nqi teev. Txhua tus lej yog raws li cov khoom nyoos tam sim no- cov khoom lag luam qib thiab peb lub Hoobkas- cov lus ncaj qha raws li lub Plaub Hlis 2026.
904L Stainless Hlau Phaj Nqe Ib Kg
Qhov nruab nrab 904L stainless hlau phaj nqi ib kg hnub no yog li ntawm $ 6.80 txog $ 9.20, nyob ntawm thickness, kom muaj nuj nqis, thiab qib ntawv pov thawj. Peb qhov ncaj qha-los ntawm-mill nqi feem ntau yog 18-25% qis dua tus nqi xa tawm vim peb yaj, ua kom zoo, thiab yob cov khoom peb tus kheej.
Table 1: 904L Phaj Nqe ib Kg los ntawm Thickness (FOB Tuam Tshoj, USD / kg)
|
Thickness (hli) |
Tus nqi ntau (USD / kg) |
Nqe rau 1-5 tons |
Nqe rau 10+ tons |
Daim ntawv thov |
|
3 – 6 |
8.20 – 9.20 |
8.80 |
8.20 |
Linings, cladding, me me hlab ntsha |
|
8 – 12 |
7.50 – 8.60 |
8.10 |
7.50 |
Thaum tshav kub kub exchangers, tank |
|
15 – 20 |
7.10 – 8.00 |
7.60 |
7.10 |
Cov hlab ntsha siab, cov kav dej txhawb nqa |
|
25 – 30 |
6.80 – 7.70 |
7.30 |
6.80 |
Cov qauv hauv paus, offshore platforms |
|
40 – 50 |
7.30 – 8.40 |
7.80 |
7.30 |
Heavy- lub luag haujlwm reactors |
Cov nqi suav nrog Kev Ntsuas Cov Khoom Siv Zoo (PMI) kuaj, kuaj xyuas ultrasonic, thiab daim ntawv pov thawj tag nrho zeb xeem (EN 10204 3.1). Rau PED lossis thib peb- kev tshuaj xyuas tog (SGS, BV, TÜV) ntxiv $0.40–$0.70 toj ib kg. Daim iav polish los yog kev cai beveling ntxiv $0.50–$0.90 ib kg.
Dab tsi cuam tshuam rau 904L Phaj Nqe?
Kev nkag siab txog yam uas cuam tshuam rau tus nqi pab koj cov peev nyiaj kom raug thiab sib tham tau zoo.
1. Raw Material Markets
Nickel, chromium, thiab molybdenum tus nqi ncaj qha cuam tshuam tus nqi kawg . 904L muaj kwv yees li 25% npib tsib xee, 20% chromium, thiab 4.5% molybdenum. Thaum LME cov nqi hlau hloov pauv, cov nqi phaj hloov raws li.
2. Phaj Thickness
Cov phaj nyias nyias feem ntau raug nqi ntau dua ib kilogram vim kev ua haujlwm ntau dua.
|
Thickness |
Nqe cuam tshuam |
Yog vim li cas |
|
3-6 hli |
+10-15% ib kg |
Precision dov, ntau tiav |
|
6-20 hli |
Txheem tus nqi |
Optimal ntau lawm efficiency |
|
20-50 hli |
-5-10% ib kg |
Kev siv cov khoom siv zoo dua |
3. Order Quantity
Kev txiav txim loj dua tau txais cov nqi luv nqi. Consolidating cov kev xav tau rau hauv ib qho kev txiav txim ntawm 500+ kg feem ntau txuag 10-20% piv rau ntau qhov kev yuav khoom me me.
4. Nto tiav
Kev ua tiav tshwj xeeb ntxiv tus nqi tab sis tej zaum yuav xav tau rau koj daim ntawv thov.
|
Ua kom tiav |
Kev Kho Tus Nqi |
Daim ntawv thov zoo tshaj plaws |
|
2B (Standard) |
Tus nqi pib |
Kev siv dav dav |
|
Tsis yog . 4 (Txhim kho) |
+10-15% |
Architectural, ua zaub mov |
|
BA (Zoo Annealed) |
+15-25% |
High -purity, zoo nkauj |
|
Pickled & Descaled |
+5-10% |
Kev npaj vuam |
5. Daim ntawv pov thawj thiab kev xeem
Mill Test Reports (MTR) thiab thib peb -kev soj ntsuam tog ntxiv tus nqi- thiab nqi.
|
Daim ntawv pov thawj |
Yam Nqi Ntxiv |
|
EN 10204 3.1 MTR |
suav nrog hauv tus nqi pib |
|
Thib peb-kev tshuaj ntsuam xyuas (SGS, BV) |
+5-10% |
|
Kev kuaj corrosion ntxiv (ASTM G-48) |
+10-20% |
6. Kev xa khoom thiab Logistics
Shipping nrug, ceev ceev, thiab ntim khoom muaj feem xyuam rau tus nqi tsaws zaum kawg.
Txheem export ntim: suav nrog
Ntoo crate lossis zaj duab xis tiv thaiv: +3-5%
Huab cua freight vs. hiav txwv freight: Qhov txawv tseem ceeb rau kev txiav txim ceev
904L Nqe Sib piv nrog rau Lwm Cov Hlau Stainless
Kev nkag siab txog cov nqi txheeb ze pab kev xaiv cov khoom siv rau koj qhov project.
|
Khoom siv |
Nqe ib Kg (USD) |
Tus nqi txheeb ze |
Daim ntawv thov zoo tshaj plaws |
|
304 Stainless hlau |
$3 - $5 |
1 x (Lub hauv paus) |
General corrosion kuj |
|
316L Stainless hlau |
$4 - $7 |
1.5x |
Marine, me me chlorides |
|
904L Stainless hlau |
$12 - $18 |
3-4x |
Sulfuric acid, nruab nrab chlorides |
|
TIAB SA 2205 |
$8 - $14 |
2-3x |
Seawater, siab zog |
|
254 SIB |
$20 - $30 |
4-6x |
Kev pabcuam chloride heev |
|
Hastelloy C276 |
$40 - $60 |
8-12x |
Mixed acids, hnyav tshuaj |
Cov ntawv pov thawj thiab cov qauv rau 904L Phaj
High- zoo 904L daim hlau ua tau raws li cov qauv thoob ntiaj teb, ua kom muaj kev ua tau zoo thiab kev taug qab:
ASTM A240 / A480 - Txuj kev qhia tshwj xeeb rau cov hlau tsis muaj hlau thiab kev sim.
ASME Tshooj II, Ntu A - Cov qauv siv rau cov hlab ntsha siab thiab cov kav dej.
ISO 9001 Daim ntawv pov thawj - Kev tswj xyuas zoo thiab kev tsim khoom ua kom muaj kev nyab xeeb.
Cov ntawv pov thawj ua pov thawj cov neeg siv khoom uas yuav daim hlau ua tau raws li kev lag luam thiab kev nyab xeeb.
Cov lus nug nquag nug (FAQ)
Q1: Vim li cas 904L nqi ntau dua 316L stainless hlau?
A: 904L muaj cov ntsiab lus hlau ntau dua (nickel ntau dua, chromium, molybdenum, thiab tooj liab) thiab yuav tsum muaj cov txheej txheem tsim khoom tshwj xeeb. Nws superior corrosion kuj nyob rau hauv acids thiab chlorides justifies tus nqi rau kev thov.
Q2: Puas yog tus nqi ib kg tib yam rau txhua qhov tuab?
A: Tsis yog. Cov phaj nyias nyias (3-6 hli) feem ntau raug nqi ntau dua ib kg vim muaj nqi ntau dua thiab ua tiav. Cov phaj tuab (20+ hli) tuaj yeem muab tus nqi zoo dua rau ib kilogram.
Q3: Ntau npaum li cas 904L tus nqi hloov?
A: Cov nqi tuaj yeem hloov pauv txhua lub lim tiam raws li LME nickel thiab molybdenum tus nqi. Cov lus hais raug cai feem ntau siv tau rau 7-14 hnub.
Q4: Kuv puas tuaj yeem tau txais luv nqi rau kev xaj rov qab?
A: Yog. Ntau tus neeg muag khoom muab cov nyiaj cheb txo qis lossis nqe lus cog lus rau cov neeg siv khoom tsis tu ncua. Nug txog lub sijhawm ntev - daim ntawv cog lus muab khoom.
Q5: Dab tsi yog qhov tsawg kawg nkaus txiav txim kom muaj nuj nqis rau 904L daim hlau?
A: Feem ntau cov neeg muag khoom lees txais kev txiav txim me me li 50 kg, tab sis tus nqi zoo dua siv rau kev txiav txim ntawm 200 kg lossis ntau dua.
Q6: Puas yog 904L nqe suav nrog daim ntawv pov thawj?
A: Standard Mill Test Reports (EN 10204 3.1) feem ntau suav nrog. Thib peb-kev tshuaj ntsuam xyuas lossis kev sim tshwj xeeb tuaj yeem ntxiv 5-20% rau tus nqi pib.
