ME11: DIFFERENT FASTENER AND BASE CORROSION EFFECTS CHART

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➡️Fastener, ⬇️Base metalZinc &
Galvanized
Steel
Aluminium &
Aluminium
Alloys
Steel &
Cast Iron
Brasses,
Coppers,
Bronzes &
Monel
Martensitic
Stainless Type
410
Austenitic Stainless
Type 302/304, 303,
305
Zinc &
Galvanized
Steel
122333
Aluminium &
Aluminium
Alloys
1123Never Recommended2
Steel &
Cast Iron
1, 411332
Brasses, Coppers,
Bronzes & Monel
1, 4, 51, 51, 5112
Martensitic
Stainless Type
410
1, 4, 51, 51, 5111
Austenitic Stainless
Type 302/304, 303,
305
1, 4, 51, 51, 51, 511

1 The corrosion of the base metal is not increased by the fastener.

2 The corrosion of the base metal is marginally increased by the fastener.

3 The corrosion of the base metal is considerably increased by the fastener.

4 The plating on the fastener is rapidly consumed, leaving the bare fastener metal.

5 Corrosion of the fastener is increased by the base metal.

Note: Surface treatment and environment can significantly alter activity.

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