HASTELLOY® B-3® alloy - Haynes International, Inc.

AQUEOUS CORROSION RESISTANCE (continued)
Effect of Cold Work Upon Corrosion Resistance in Boiling 20% HCl*
Ultimate
Corrosion
Tensile Yield Strength Elongation Rate
% Hardness Strength at 0.2% Offset in 2" (51mm) PerYear
Coldwork Rc Ksi MPa Ksi MPa % EL Mils (mm)
0 18 125 860 62 425 57 13 (0.33)
10 30 140 965 100 690 40 13 (0.33)
20 37 159 1095 130 895 25 13 (0.33)
30 41 180 1240 154 1060 13 13 (0.33)
40 44 202 1395 172 1185 9 13 (0.33)
50 46 221 1525 183 1260 8 13 (0.33)
* Exposure for four 24 hour periods
HASTELLOY ® B-3 ® alloy ISOCORROSION DIAGRAMS
Hydrochloric Acid
Sulfuric Acid
250
Boiling Point Curve
125
400
350
>5 mpy
(>0.13 mmpy)
200
200
>5 mpy
(>0.13 mmpy)
100
300
250
Boiling Point Curve
150
150
100
0
5 to 20 mpy
(0.13 to 0.51 mmpy)
0 to 5 mpy
(0.13 mmpy)
10 20 30
Concentration, wt.%
40
75
50
200
150
100
0
>5 mpy
(>0.13 mmpy)
10
20
30
0 to 5 mpy
(0 to 0.13 mmpy)
40 50 60 70 80 90 100
Concentration, wt.%
100
50
350
Phosphoric Acid
300
150
250
125
200
Boiling Point Curve
>5 mpy
(>0.13 mmpy)
100
150
100
0 to 5 mpy
(0 to 0.13 mmpy)
75
50
0
10
20
30 40 50 60 70 80
Concentration, wt.%
HASTELLOY ® B-3 ® alloy
6