Abstract

Results of the Deutsches Institut für Normung (DIN) Kesternich sulfur dioxide test (DIN 50018) are compared with those of long-term industrial atmospheric exposure tests of sheet steels coated with zinc, aluminum, and Al-Zn alloy coatings. According to the Kesternich test results, Al-Zn and zinc coatings provided sacrificial protection to the steel substrate whereas the aluminum coatings did not. Durability was highest for the 55% Al-Zn and aluminum coatings. Qualitatively, these results are in good agreement with those of atmospheric tests. However, durability of 4% Al-Zn and 7% Al-Zn in the Kesternich test was better than two times greater than that provided by zinc coatings. This finding does not agree with the results of long-term atmospheric tests in an industrial environment. These comparisons demonstrate that the Kesternich test provides a useful qualitative ranking of these coatings but should not be relied on to quantitatively predict coating life.

Issue Section:
Research Papers
Keywords:
corrosion, steels, coatings, sulfur dioxide, alloy steels

References

1.
Townsend
,
H. E.
 and
Zoccola
,
J. C.
,
Materials Performance
, Vol.
18
, No.
10
,
1979
, p. 13.
2.
Townsend
,
H. E.
 and
Meitzner
,
C. F.
,
Materials Performance
, Vol.
22
, No.
1
,
1983
, p. 54.
3.
Allegra
,
L.
,
Berke
,
N. S.
, and
Townsend
,
H. E.
, “
Resistance of Galvanized, Aluminum-Coated, and 55% Al-Zn Coated Steel Sheet to Atmospheric Corrosion Involving Standing Water
,”
Atmospheric Corrosion
,
Ailor
 
W. H.
, Ed.,
John Wiley and Sons, Inc.
,
New York
,
1982
, pp.
595
-
606
.
4.
Kesternich
,
W.
,
Stahl und Eisen
 0340-4803, Vol.
11
,
1951
, p. 587.
5.
Kesternich
,
W.
,
Werkstoffe und Korrosion
 0043-2822, Vol.
3
,
1965
, p. 193.
6.
Kesternich
,
W.
,
Bander Bleche Rohre
, Vol.
8
,
1967
, p. 545.
7.
Kutzelnigg
,
A.
,
Werkstoffe und Korrosion
 0043-2822, Vol.
7
,
1958
.
8.
Zoccola
,
J. C.
,
Townsend
,
H. E.
,
Borzillo
,
A. R.
, and
Horton
,
J. B.
, “
Atmospheric Corrosion Behavior of Aluminum-Zinc Alloy-Coated Steel
,”
Atmospheric Factors Affecting the Corrosion of Engineering Metals
, STP 646,
Coburn
 
S. K.
, Ed.,
American Society for Testing and Materials
,
Philadelphia
,
1978
, pp.
165
-
184
.
This content is only available via PDF.
All rights reserved. This material may not be reproduced or copied, in whole or in part, in any printed, mechanical, electronic, film, or other distribution and storage media, without the written consent of ASTM International.
You do not currently have access to this content.