2200 Hour Corrosion Test
2200 Hour Corrosion Test
To begin corrosion testing, two raised-face FRP piping flange assemblies were delivered to ITI Anti-Corrision, Inc. for exposure to 2200±24 hours of ASTM B 117-03; Standard practice for operating salt spray (fog) apparatus.
The nuts/bolts/washers used on each assembly were coated with the Fluorokote #1® system.
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| Nut / Bolt / Washer Coating | Torque Method | Position of Assembly in B 117 Chamber |
|---|---|---|
| Fluorokote #1® | Hand | Horizontal |
| Wrench | Vertical |
The assemblies were visually examined for corrosion (ASTM D 610-01) at 1200±24 hours, 1800±24 hours, 2000±24 hours, with the full/final evaluations performed at 2200±24 hours.
| Duration | Position & Torque | % of Rust & Visual Examples Per ASTM D 610-01 |
|---|---|---|
| 1200 ± 24 Hours | Horizontal (Hand) | ≤ 0.01% |
| Vertical (Wrench) | ≤ 0.01% | |
| 1800 ± 24Hours | Horizontal (Hand) | ≤ 0.03% |
| Vertical (Wrench) | ≤ 0.01% | |
| 2000 ± 24 Hours | Horizontal (Hand) | ≤ 0.3% |
| Vertical (Wrench) | ≤ 0.1% | |
| 2200 ± 24 Hours | Horizontal (Hand) | ≤ 0.3% |
| Vertical (Wrench) | ≤ 0.1% |
The Horizontal/Hand Torque assembly was dissembled at the completion of the exposure with the nuts being easily unthreaded by hand with little effort.
More info about FluoroKote #1®
Metal Coatings Corp. maintains a huge stock of coated B7 studs, threaded bar and 2H nuts. Available for same-day shipping in a wide variety of sizes, each is expertly coated with the proprietary FluoroKote #1® fluoropolymer coating process that offers easier assembly, fights corrosion and prevents seizing and galling.
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