Diffusion through a membrane was studied at temperatures of up to 600C. It was found that the results could be described by:

D (cm2/s) = 1.8 x 10-1exp[-14.8(kcal/mol)/RT]

Determination of Deuterium Surface Recombination Rates on Stainless Steel. M.Braun, B.Emmoth, F.Waelbroeck, P.Wienhold: Journal of Nuclear Materials, 1980, 93-94, 861-5

 

 

Table 60

Permeation Parameters for H (0.1MPa)

in Stainless Steels at 200 to 430C

 

Steel

Po (molH2/msMPa½)

E (kJ/mol)

AISI 316L

3.90 x 10-4

64.06

AISI 316LN

1.85 x 10-4

60.66

21-6-9

2.52 x 10-4

61.29

21-9-9

2.83 x 10-4

62.29

AISI 304

2.85 x 10-4

62.43

AISI 321

2.44 x 10-4

62.70