Stainless hlau 904 / 904L
Cov npe lag luam: Alloy 904L,N08904 W. Nr1.4539 , ib.N08904Cr20Ni25Mo4.5 Cu
904L yog Super Austentic Stainless Hlau nrog tsawg carbon cov ntsiab lus.Qib yog npaj rau siv nyob rau hauv cov mob hnyav corrosive.Nws tau raug thov ua pov thawj ntau xyoo thiab tau tsim los tiv thaiv corrosion hauv dilute sulfuric acid.Nws yog tus qauv thiab pom zoo rau kev siv lub nkoj siab hauv ntau lub tebchaws.Structureally, 904L yog tag nrho austenitic thiab tsis tshua muaj rhiab heev rau nag lossis daus ferrite thiab sigma theem dua li cov qib austenitic nrog cov ntsiab lus siab molybdenum.Yam ntxwv, vim yog kev sib xyaw ua ke ntawm cov ntsiab lus siab ntawm chromium, npib tsib xee, molybdenum thiab tooj liab 904L muaj kev tiv thaiv zoo rau kev xeb, tshwj xeeb tshaj yog nyob rau hauv sulfuric thiab phosphoric tej yam kev mob.
| C | Cr | Ni | Mo | Si | Mn | P | S | Cu | N |
| ≤ 0.02 | 19.0-23.0 Nws | 23.0-28.0 Nws | 4.0-5.0 | ≤1.0 | ≤ 2.0 | ≤ 0.045 | ≤ 0.035 | 1.0-2.0 Nws | ≤1.0 |
| Qhov ntom (g / cm3) | Melting point (℃) | Elastic modulus (GPa) | Thermal expansion coefficient (10-6℃-1) | Thermal conductivity (W / m ℃) | Hluav taws xob resistivity (μΩ) |
| 8.0 ib | 1300-1390 Nws | 195 | 15.8 ib | 12 | 1.0 |
| Kub (℃) | IB (N/mm2) | 0.2 (N / hli2) | δ5 (%) | HRB |
| Chav kub | ≤490 | ≤ 220 | ≥35 | ≤90 |
Alloy 904L Standards thiab Specifications
ASME SB-625, ASME SB-649, ASME SB-673, ASME SB-674, ASME SB-677
Alloy 904L Muaj cov khoom lag luam hauv Sekonic hlau
Alloy 904L Bars & Qws
Round bars / Pav ca bar / Hex tuav,Loj Los ntawm 8.0mm-320mm, Siv rau bolts, fastners thiab lwm yam khoom seem
Alloy 904L hlau
Muab nyob rau hauv vuam hlau thiab caij nplooj ntoos hlav hlau nyob rau hauv coil daim ntawv thiab txiav ntev.
Alloy 904L daim ntawv & phaj
Dav mus txog 1500mm thiab ntev mus txog 6000mm, Thickness ntawm 0.1mm mus rau 100mm.
Alloy 904L seamless raj & Welded yeeb nkab
Cov qauv loj thiab customized dimension tuaj yeem tsim los ntawm peb nrog kev ua siab ntev me me
Alloy 904L sawb & coil
Cov mob mos thiab tawv tawv nrog AB ci ntsa iab, dav txog 1000mm
Alloy 904L Fasteners
Alloy 904L cov ntaub ntawv nyob rau hauv cov ntaub ntawv ntawm Bolts, screws, flanges thiab lwm yam fastners, raws li cov neeg specifications.
Vim li cas Alloy 904L?
•Zoo tiv taus pitting corrosion thiab crevice corrosion
•Siab tsis kam rau kev ntxhov siab corrosion cracking, intergranular, zoo machinability thiab weldability
•Nyob rau hauv tag nrho cov ntau yam ntawm phosphates904L alloy corrosion kuj yog superior rau zoo tib yam stainless hlau.
•Nyob rau hauv muaj zog oxidizing nitric acid, piv rau siab alloy tsis muaj molybdenum steel qib, 904Lshows qis corrosion kuj.
•Cov hlau no muaj kev tiv thaiv corrosion zoo dua li cov pa stainless hlau.
•Txo tus nqi corrosion ntawm lub qhov thiab qhov khoob rau cov ntsiab lus siab ntawm npib tsib xee, thiab muaj kev tiv thaiv zoo rau kev ntxhov siab corrosiontawg, nyob rau hauv ib puag ncig ntawm cov tshuaj chloride, concentration ntawm hydroxide tov thiab nplua nuj hydrogen sulfide.
Alloy 904L Daim ntawv thov teb:
•Petroleum thiab petrochemical khoom, xws li reactor ntawm petrochemical khoom, thiab lwm yam.
•Sulfuric acid cia thiab thauj khoom, xws li cov khoom siv hluav taws xob, thiab lwm yam.
•Fais fab nroj tsuag flue gas desulfurization devicen, Main qhov chaw ntawm kev siv: lub absorber ntauwd lub cev, flue, sab hauv qhov chaw, tshuaj tsuag system, thiab lwm yam
•Organic acid scrubber thiab kiv cua hauv kev ua haujlwm.
•Dej kho cog, dej kub exchanger, papermaking khoom, sulfuric acid, nitric acid khoom, acid,
•Kev lag luam kws tshuaj thiab lwm yam khoom siv tshuaj, lub nkoj siab, khoom noj khoom haus.
•Pharmaceutical: centrifuge, reactor, thiab lwm yam.
•Cov khoom noj cog: soy sauce lauj kaub, ua cawv txiv hmab, ntsev, khoom siv thiab hnav khaub ncaws.
•Yuav kom dilute sulfuric acid muaj zog corrosive nruab nrab steel 904 l yog txuam.
