This specification covers the requirements for 28 grades of titanium and titanium alloy tubing intended for surface condensers, evaporators, and heat exchangers, as follows: Grade 1,Grade 2,Grade 2H,Grade 3,Grade 7,Grade 7H,Grade 9,Grade 11,Grade 12,Grade 13,Grade 14,Grade 15,Grade 16,Grade 16H,Grade 17,Grade 18,Grade 26,Grade 26H,Grade 27,Grade 28,Grade 30,Grade 31,Grade 33,Grade 34,Grade 35,Grade 36,Grade 37,Grade 38.
| Grades | Description |
|---|---|
| Grade 1 | Unalloyed titanium |
| Grade 2 | Unalloyed titanium |
| Grade 2H | Unalloyed titanium (Grade 2 with 58 ksi minimum UTS) |
| Grade 3 | Unalloyed titanium |
| Grade 7 | Unalloyed titanium plus 0.12 to 0.25 % palladium |
| Grade 7H | Unalloyed titanium plus 0.12 to 0.25 % palladium (Grade 7 with 58 ksi minimum UTS) |
| Grade 9 | Titanium alloy (3 % aluminum, 2.5 % vanadium) |
| Grade 11 | Unalloyed titanium plus 0.12 to 0.25 % palladium |
| Grade 12 | Titanium alloy (0.3 % molybdenum,0.8 % nickel) |
| Grade 13 | Titanium alloy (0.5 % nickel, 0.05 % ruthenium) |
| Grade 14 | Titanium alloy (0.5 % nickel, 0.05 % ruthenium) |
| Grade 15 | Titanium alloy (0.5 % nickel, 0.05 % ruthenium) |
| Grade 16 | Unalloyed titanium plus 0.04 to 0.08 % palladium |
| Grade 16H | Unalloyed titanium plus 0.04 to 0.08 % palladium (Grade 16 with 58 ksi minimum UTS) |
| Grade 17 | Unalloyed titanium plus 0.04 to 0.08 % palladium |
| Grade 18 | Titanium alloy (3 % aluminum, 2.5 % vanadium) plus 0.04 to 0.08 % palladium |
| Grade 26 | Unalloyed titanium plus 0.08 to 0.14 % ruthenium |
| Grade 26H | Unalloyed titanium plus 0.08 to 0.14 % ruthenium (Grade 26 with 58 ksi minimum UTS) |
| Grade 27 | Unalloyed titanium plus 0.08 to 0.14 % ruthenium |
| Grade 28 | Titanium alloy (3 % aluminum, 2.5 % vanadium) plus 0.08 to 0.14 % ruthenium |
| Grade 30 | Titanium alloy (0.3 % cobalt, 0.05 % palladium) |
| Grade 31 | Titanium alloy (0.3 % cobalt, 0.05 % palladium) |
| Grade 33 | Titanium alloy (0.4 % nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium) |
| Grade 34 | Titanium alloy (0.4 % nickel, 0.015 % palladium, 0.025 % ruthenium, 0.15 % chromium) |
| Grade 35 | Titanium alloy (4.5 % aluminum, 2 % molybdenum, 1.6 % vanadium, 0.5 % iron, 0.3 % silicon) |
| Grade 36 | Titanium alloy (45 % niobium) |
| Grade 37 | Titanium alloy (1.5 % aluminum) |
| Grade 38 | Titanium alloy (4 % aluminum, 2.5 % vanadium, 1.5 % iron) |