Stainless hlau UNS N08904 Fabricated Pipes
N08904 stainless hlau yeeb nkabyog ib tug high-alloy austenitic stainless hlau uas tsis muaj cov ntsiab lus carbon thiab muaj zoo corrosion kuj. Nws muaj zoo corrosion kuj tiv thaiv dilute sulfuric acid. Nyob rau tib lub sijhawm, nws muaj cov ntsiab lus chromium siab thiab cov ntsiab lus nickel txaus. Qhov sib ntxiv ntawm tooj liab ua rau nws cov kua qaub-resistant, tshwj xeeb tshaj yog tiv taus chloride gap corrosion thiab kev nyuaj siab corrosion cracking, thiab tsis tshua muaj corrosion me ntsis thiab tawg. , qhov tsis kam rau pitting corrosion yog me ntsis zoo dua li lwm hom hlau. Tsis tas li ntawd, N08904 acid-resistant steel yeeb nkab muaj kev ua tau zoo thiab weldability thiab tuaj yeem siv rau hauv cov hlab ntsha siab.
Lub cev lub cev ntawm N08904 stainless hlau round yeeb nkab yog tsim nyog sau cia: qhov ceev yog 8.0kg / dm3, lub melting point yog tsis paub, qhov tshwj xeeb kub muaj peev xwm yog kg/(kg.k) ntawm 0~ 100 degree, thiab thermal conductivity ntawm 100 degree thiab 500 degree feem. w/(mk), linear expansion coefficient yog 10-6/k ntawm 0 ~ 100 degree thiab 0 ~ 539 degree feem, qhov resistivity (20 degree) yog Ω.mm2 / m, thiab longitudinal elastic modulus (20 degree ) yog GPa, thaum N08904 stainless hlau seamless steel yeeb nkab tsis yog hlau nplaum.
Cov qauv yog: UNSN08904|1.4539|ASTM A240|ASME SA240|904L super stainless hlau|JIS txheem SUS 890L.
Stainless hlau UNS N08904 Cov kav dej sib npaug
| Qib | 904L | |
| UNS No | N08904 | |
| Laus British | BS | 904S13 |
| En | X1NiCrMoCu25-20-5 | |
| Euronorm | Tsis muaj | 1.4539 |
| Lub npe | – | |
| Swedish SS | – | |
| Japanese JIS | SUS 890L | |
ASTM A312 UNS N08904 Pipes Mechanical Properties
| Qib | UNS N08904 | |
|---|---|---|
| Tensile zog (MPa) min | 490 | |
| Yield Strength 0.2% Pov thawj (MPa) min | 220 | |
| Elongation (% hauv 50mm) min | 35 | |
| Hardness | Rockwell B (HR B) max | 70-90 yam |
| Rockwell B (HR B) max | – | |
Stainless hlau UNS N08904 Seamless Yeeb Nkab
N08904 Stainless Hlau Thick Wall Yeeb Nkab yog tsim rau ntau qhov chaw nrog hnyav corrosive. Nws muaj kev ua haujlwm zoo-passivation kev hloov pauv muaj peev xwm thiab zoo heev corrosion kuj. Nws muaj corrosion kuj zoo nyob rau hauv non-oxidizing acids xws li H2SO4, CH3COOH, HCOOH, thiab H3PO4, thiab muaj zoo pitting corrosion kuj nyob rau hauv nruab nrab chlorine-muaj xov xwm. Nws kuj tseem muaj kev ua haujlwm zoo rau crevice corrosion thiab kev nyuaj siab corrosion. kev ua tau zoo. Nws yog tsim rau ntau qhov ntau ntawm H2SO4 hauv qab 70 degree. Nws tuaj yeem tiv taus txhua qhov concentration thiab kub ntawm CH3COOH nyob rau hauv lub siab ib txwm muaj thiab muaj kev tiv thaiv corrosion zoo hauv cov kua qaub sib xyaw ntawm HCOOH thiab CH3COOH.
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