Grade 1 (unalloyed Titanium): used to increase formability.
Grade 2 (unalloyed Titanium): the most common Titanium grade for cooling water systems; good strength with high
ductility, formability, weldability and corrosion resistance.
Grade 3 (unalloyed Titanium): specified when higher levels of strength are required.
Grade 7 (unalloyed Titanium): enhanced resistance to hot brine crevice corrosion and reducing acids, mechanical
properties similar to grade 2 alloy.
Grade 9 (Titanium alloy): offers excellent corrosion resistance to sea water and is medium-high strength alloy with
highest code design allowables.
Grade 11 (unalloyed Titanium): mechanical properties are the same as those of grade 1 however, with greater resistance
to corrosion against acid chlorides.
Grade 12 (Titanium alloy): more resistant even at temperatures up to 300 C with improved strength and code design
allowables over grade 2.
| ASTM Grade |
Chemical composition |
| (sim. DIN Grade) |
| N |
C |
H |
Fe |
O |
Al |
V |
Pa |
Mo |
Ni |
|
% max |
% max |
% max |
% max |
% max |
% max |
% max |
|
|
|
| ASTM B338 Grade1 |
0,03 |
0,08 |
0,015 |
0,20 |
0,18 |
- |
- |
- |
- |
- |
| DIN 17861 Ti 1-3.7025 |
0,05 |
0,06 |
0,013* |
0,15 |
0,12 |
- |
- |
- |
- |
- |
| VdTÜV 230/2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ASTM B338 Grade2 |
0,03 |
0,08 |
0,015 |
0,30 |
0,25 |
- |
- |
- |
- |
- |
| DIN 17861 Ti2-3.7035 |
0,05 |
0,06 |
0,013* |
0,20 |
0,18 |
- |
- |
- |
- |
- |
| VdTÜV 230/2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ASTM B338 Grade3 |
0,05 |
0,08 |
0,015 |
0,30 |
0,35 |
- |
- |
- |
- |
- |
| DIN 17861 Ti3-3.7035 |
0,05 |
0,06 |
0,013* |
0,25 |
0,25 |
- |
- |
- |
- |
- |
| VdTÜV 230/2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ASTM B338 Grade7 |
0,03 |
0,08 |
0,015 |
0,30 |
0,25 |
- |
- |
0,12-0,25 |
- |
- |
| DIN 17861 Ti2 Pd-3.7235 |
0,05 |
0,06 |
0,013* |
0,20 |
0,18 |
- |
- |
0,05-0,25 |
- |
- |
| VdTÜV 230/2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ASTM B338 Grade9 |
0,02 |
0,08 |
0,015 |
0,25 |
0,15 |
2,5-3,5 |
2,0-3,0 |
- |
- |
- |
|
|
|
|
|
|
|
|
|
|
|
| ASTM B338 Grade11 |
0,03 |
0,08 |
0,015 |
0,20 |
0,18 |
- |
- |
0,12-0,25 |
- |
- |
| DIN 17861 Ti1 Pd-3.7225 |
0,05 |
0,06 |
0,013* |
0,20 |
0,18 |
- |
- |
0,15-0,25 |
- |
- |
| VdTÜV 230/2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ASTM B338 Grade12 |
0,03 |
0,08 |
0,015 |
0,30 |
0,25 |
- |
- |
- |
0,2-0,4 |
0,6-0,9 |
| DIN 17861 Ti AL3V2,5- |
0,04 |
0,05 |
0,015 |
0,30 |
0,12 |
2,5-3,5 |
2,0-3,0 |
- |
- |
- |
| 3.7195 |
|
|
