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Corrosion Resistance

Average Hot Corrosion Resistance

Test Temperature Test
Period 		Metal
Loss/Slide 		Maximum
Penetration Side 		Total Metal
Affected/Side
°F °C h mils mm mils mm mils mm
1650 899 200 1.2 0.03 1.5 0.04 2.7 0.07
1650 899 1000 4.0 0.10 3.5 0.09 7.5 0.19

Comparative Average Hot Corrosion Resistance

Test
Temperature		 Test Period Total Metal Affected/Side
S 188 X
°F °C h mils mm mils mm mils mm
1650 899 200 2.7 0.07 1.5 0.04 2.7 0.07
1650 899 1000 7.5 0.19 3.5 0.09 7.5 0.19
* All tests performed by exposure to the combustion products of No. 2 fuel oil (0.4 percent sulfur) and 5 ppm of sea salt. Gas velocity over samples was 13 ft/sec (4 m/s). Thermal stock frequency was one hour.
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