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Table of contatct corrosion

METALSurface*Magnesium alloyZincHot dip galvanized steelHliníkové slitinyAluminium alloySoft steelLow impurity steelwrought steelChromed steelLeadTinCopperStainless steel
Magnesium
alloy
Small
Large
 V
L
V
L
V
L
V
L
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
ZincSmall
Large
L
M
 M
M
V
M
V
M
V
M
V
M
V
M
V
M
V
M
V
M
V
M
V
M
Hot-dip
galavnized steel
Small
Large
L
M
M
M
 L
M
L
M
V
M
V
M
V
M
V
M
V
M
V
M
V
M
V
M
Aluminium alloySmall
Large
L
M
M
M
M
L
 M
M
V
M

M
V
L

L
V
V

V
V
V
V
V
Cadmium
layers
Small
Large
M
L
M
M
M
L
M
M
 V
M
V
M
V
M
V
M
V
M
V
M
V
M
V
M
Soft 
steel
Small
Large
M
M
M
M
M
M
M
M
M
M
 L
M
V
M
V
M
V
M
V
M
V
M
V
M
Low impurity
steel
Small
Large
M
M
M
M
M
M
M
M
M
M
M
M
 M
M
V
M
V
M
V
M
V
M
V
M
Wrought
steel
Small
Large
M
M
M
M
M
M
M
M
M
M
M
M
L
M
 V
M
V
M
V
M
VV
Chromed
steel
Small
Large
M
M
M
M
M
M
M
M
M
M
M
M
M
M
  L
M
L
M
VV
M
LeadSmall
Large
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
L
M
M
 M
M
M
M
TinMalý
Velký
M
M
M
M
M
M
M
M
M
M
M
M
M
M

M
M
L
 M
M
  
CopperSmall
Large
M
M
M
M
M
M
M
M
M
M
M
M
M
M

M
LL
M
V
L
 
M
Stainless
steel
Small
Large
M
M
M
M
M
L
M
M
M
M

M
M
M
M
M

L
M
L
M
L

M
 

V = large metal corrosion (in the row of the table)

M = little or no corrosion of metal (horizontal)
L = light corrosion (in very humid environments) metal (horizontal)

*) The interaction between the surface of the metal and a metal surface in the appropriatecolumn.

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