Factors Affecting Corrosion in Gulf of Finland Brackish Water

Table 3

Corrosion rates for unalloyed steel and AISI 316L type stainless steel.

Material	Environment	Method	Rate, m/year
Steel	Type I water, 0°C	Corrosion current by Tafel method	58
Steel	Type I water, 10°C	Corrosion current by Tafel method	93
Steel	Type I water, 20°C	Corrosion current by Tafel method	180
Steel	Type I water, 0°C, diluted 1 : 6	Corrosion current by Tafel method	46
Steel	Type I water, 10°C, diluted 1 : 6	Corrosion current by Tafel method	60
Steel	3.5% NaCl, 20°C, 14-day test	Corrosion current by LPR	280
Steel	3.5% NaCl, 20°C, 28-day test	Corrosion current by LPR	310
Steel	3.5% NaCl, 20°C, 14-day test	Weight loss	70
Steel	3.5% NaCl, 20°C, 28-day test	Weight loss	52
AISI 316L	Type I water, 0°C	Corrosion current by Tafel method	<2
AISI 316L	Type I water, 10°C	Corrosion current by Tafel method	<2
AISI 316L	Type I water, 0°C, diluted 1 : 6	Corrosion current by Tafel method	<2
AISI 316L	Type I water, 10°C, diluted 1 : 6	Corrosion current by Tafel method	<2
AISI 316L	3.5% NaCl, 20°C	Corrosion current by LPR	<1