Hnub ci ua liaj ua teb stainless hlau: 316l vs . 441 rau mounting systems

 

Vim li cas 316l nyiam rau cov ntug dej hiav txwv hnub ci?
316L's molybdenum content (2.1-2.5%) resists salt spray corrosion up to 500 ppm chlorides. Its PREN value >28}}}} Cov pa roj hmab tsis tshua muaj roj nyob hauv daim teb-sib sau ua ke {}}

 

Thaum twg yog Ferritic 441 haum rau hnub ci nruab hnub?
441 Cov nqi kev txuag nqi rau kev ua kom muaj kuab paug nrog cov pa phem tsis muaj zog (450 mpa}}

 

 

Yuav ua li cas Thermal Cycles cuam tshuam cov khoom xaiv?
Diurnal kub viav vias ua rau nthuav tawm / Kev Tiv Thaiv Kev Nyuaj Siab Tshaj Plaws hauv 441 racks them rau nws qhov qis tshaj elongation.

 

Dab tsi kho cov kev kho mob tiv thaiv UV degradation?
Satin ua tiav ({180-240 grit) txo qhov kev xav txog cov khoom lag luam hlau -}} kev ntxhov siab ua rau delamination {}}

 

Cov ntsiab lus tseem ceeb rau hnub ci qauv?
Annually check weld zones for crevice corrosion. Measure thickness loss at soil-contact points. Verify torque retention on 316L fasteners after 5 years. Replace any components with rust staining >3% thaj chaw .