24

1 h

>500b

>500b

872b

116b

40c

3 h

>500b

>500b

>1000b

178b

51c

a To convert to mm/y multiply by 0.0254. b Alloys C-276, C-22, C-2000, and 686. Heavy pitting attack with grains falling due to deep intergranular attack. cAlloy 59. No pitting attack.

a To convert to mm/y multiply by 0.0254. b Alloys C-276, C-22, C-2000, and 686. Heavy pitting attack with grains falling due to deep intergranular attack. cAlloy 59. No pitting attack.

temperature. This fact is again proven by data in Table 7.9 where the maximum depth of attack at 105°C in "green death" solution was 10 times greater for alloy C-22 than for alloy C-276. In this test alloy 59 had the lowest depth of crevice attack, showing the beneficial effects of its highest PRE number.

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