This specification2 covers annealed titanium and titanium alloy bars and billets as follows:
Grade 1—Unalloyed titanium,
Grade 2—Unalloyed titanium,
Grade 2H—Unalloyed titanium (Grade 2 with 58
ksi minimum UTS),
Grade 3—Unalloyed titanium,
Grade 4—Unalloyed titanium,
Grade 5—Titanium alloy (6 % aluminum, 4 % vanadium),
Grade 6—Titanium alloy (5 % aluminum, 2.5 % tin),
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),
more
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 % palladiumm (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 19—Titanium alloy (3 % aluminum, 8 %
vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum),
Grade 20—Titanium alloy (3 % aluminum, 8 %
vanadium, 6 % chromium, 4 % zirconium, 4 % molybdenum)
plus 0.04 %–0.08 % palladium,
Grade 21—Titanium alloy (15 % molybdenum, 3 %
aluminum, 2.7 % niobium, 0.25 % silicon),
Grade 23—Titanium alloy (6 % aluminum, 4 %
vanadium with extra low interstitial elements, ELI),
Grade 24—Titanium alloy (6 % aluminum, 4 %
vanadium) plus 0.04 % to 0.08 % palladium,
Grade 25—Titanium alloy (6 % aluminum, 4 %
vanadium) plus 0.3 % to 0.8 % nickel and 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 0.08–0.14 % ruthenium),
Grade 29—Titanium alloy (6 % aluminum, 4 %
vanadium, extra low interstitial, ELI plus 0.08–0.14 % ruthenium),
Grade 30—Titanium alloy (0.3 % cobalt, 0.05 %
palladium),
Grade 31—Titanium alloy (0.3 % cobalt, 0.05 %
palladium),
Grade 32—Titanium alloy (5 % aluminum, 1 % tin,
1 % zirconium, 1 % vanadium, 0.8 % molybdenum),
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), and
Grade 38—Titanium alloy (4 % aluminum, 2.5 %
vanadium, 1.5 % iron).
Chemical Composition
| Element |
Composition, % |
| Grade 1 |
Grade 2 |
Grade 2H |
Grade 3 |
Grade 4 |
Grade 5 |
Grade 6 |
Grade 7 |
Grade 7H |
Grade 9 |
Grade 11 |
Grade 12 |
| Nitrogen, max |
0.03 |
0.03 |
0.03 |
0.05 |
0.05 |
0.05 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
| Carbon, max |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
| Hydrogen,B,C max |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
| Iron, max |
0.20 |
0.30 |
0.30 |
0.30 |
0.50 |
0.40 |
0.50 |
0.30 |
0.30 |
0.25 |
0.20 |
0.30 |
| Oxygen, max |
0.18 |
0.25 |
0.25 |
0.35 |
0.40 |
0.20 |
0.20 |
0.25 |
0.25 |
0.15 |
0.18 |
0.25 |
| Aluminum |
... |
... |
... |
... |
... |
5.5-6.75 |
4.0-6.0 |
... |
... |
2.5-3.5 |
... |
... |
| Vanadium |
... |
... |
... |
... |
... |
3.5-4.5 |
... |
... |
... |
2.0-3.0 |
... |
... |
| Tin |
... |
... |
... |
... |
... |
... |
2.0-3.0 |
... |
... |
... |
... |
... |
| Ruthenium |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
| Palladium |
... |
... |
... |
... |
... |
... |
... |
0.12-0.25 |
0.12-0.25 |
... |
0.12-0.25 |
... |
| Cobalt |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
| Molybdenum |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
0.2-0.4 |
| Chromium |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
| Nickel |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
0.6-0.9 |
| Niobium |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
| Zirconium |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
| Silicon |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
| Residuals,D,E,F max each |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
| Residuals,D,E,Fmax total |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
| Titanium G |
balance |
balance |
balance |
balance |
balance |
balance |
balance |
balance |
balance |
balance |
balance |
balance |
| Element |
Composition, % |
| Grade 13 |
Grade 14 |
Grade 15 |
Grade 16 |
Grade 16H |
Grade 17 |
Grade 18 |
Grade 19 |
Grade 20 |
Grade 21 |
| Nitrogen, max |
0.03 |
0.03 |
0.05 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
| Carbon. max |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.05 |
0.05 |
0.05 |
| Hydrogen,B,C max |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.02 |
0.02 |
0.015 |
| Iron,max |
0.20 |
0.30 |
0.30 |
0.30 |
0.30 |
0.20 |
0.25 |
0.30 |
0.30 |
0.40 |
| Oxygen,max |
0.10 |
0.15 |
0.25 |
0.25 |
0.25 |
0.18 |
0.15 |
0.12 |
0.12 |
0.17 |
| Aluminum |
... |
... |
... |
... |
... |
... |
2.5-3.5 |
3.0. 4.0 |
3.0-4.0 |
2.5-3.5 |
| Vanadium |
... |
... |
... |
... |
... |
... |
2.0-3.0 |
7.5-8.5 |
7.5-8.5 |
... |
| Tin |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
| Ruthenium |
0.04-0.06 |
0.04-0.06 |
0.04-0.06 |
... |
... |
... |
... |
... |
... |
... |
| Palladium |
... |
... |
... |
0.04-0.08 |
0.04-0.08 |
0.04-0.08 |
0.04-0.08 |
... |
0.04-0.08 |
... |
| Cobalt |
... |
... |
... |
... |
... |
... |
... |
... |
... |
... |
| Molybdenum |
... |
... |
... |
... |
... |
... |
... |
3.5-4.5 |
3.5-4.5 |
14.0-16.0 |
| Chromium |
... |
... |
... |
... |
... |
... |
... |
5.5-0.5 |
5.5-0.5 |
... |
| Nickel |
0.4-0.6 |
0.4-0.6 |
0.4-0.6 |
... |
... |
... |
... |
... |
... |
... |
| Niobium |
... |
... |
... |
... |
... |
... |
... |
... |
... |
2.2-3.2 |
| Zirconium |
... |
... |
... |
... |
... |
... |
... |
3.5-4.5 |
3.5-4.5 |
... |
| Silicon |
... |
... |
... |
... |
... |
... |
... |
... |
... |
0.15-0.25 |
| Residuals,D,E,F max each |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.15 |
0.15 |
0.1 |
| Residuals,D,E,Fmax total |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
| TitaniumG |
balance |
balance |
balance |
balance |
balance |
balance |
balance |
balance |
balance |
balance |
| Element |
Composition, % |
| Grade 23 |
Grade 24 |
Grade 25 |
Grade 26 |
Grade 26H |
Grade 27 |
Grade 28 |
Grade 29 |
Grade 30 |
| Nitrogen, max |
0.03 |
0.05 |
0.05 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
| Carbon, max |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
| Hydrogen,B,C max |
0.0125 |
0.015 |
0.0125 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
| Iron, max |
0.25 |
0.40 |
0.40 |
0.30 |
0.30 |
0.20 |
0.25 |
0.25 |
0.30 |
| Oxygen, max |
0.13 |
0.20 |
0.20 |
0.25 |
0.25 |
0.18 |
0.15 |
0.13 |
0.25 |
| Aluminum |
5.5-6.5 |
5.5-6.75 |
5.5-6.75 |
... |
... |
... |
2.5-3.5 |
5.5-6.5 |
... |
| Vanadium |
3.5-4.5 |
3.5-4.5 |
3.5-4.5 |
... |
... |
... |
2.0-3.0 |
3.5-4.5 |
... |
| Tin |
... |
... |
... |
... |
... |
... |
... |
... |
... |
| Ruthenium |
... |
... |
... |
0.08-0.14 |
0.08-0.14 |
0.08-0.14 |
0.08-0.14 |
0.08-0.14 |
... |
| Palladium |
... |
0.04-0.08 |
0.04-0.08 |
... |
... |
... |
... |
... |
0.04-0.08 |
| Cobalt |
... |
... |
... |
... |
... |
... |
... |
... |
0.20-0.80 |
| Molybdenum |
... |
... |
... |
... |
... |
... |
... |
... |
... |
| Chromium |
... |
... |
... |
... |
... |
... |
... |
... |
... |
| Nickel |
... |
... |
0.3-0.8 |
... |
... |
... |
... |
... |
... |
| Niobium |
... |
... |
... |
... |
... |
... |
... |
... |
... |
| Zirconium |
... |
... |
... |
... |
... |
... |
... |
... |
... |
| Silicon |
... |
... |
... |
... |
... |
... |
... |
... |
... |
| Residuals,D,E,F max each |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
| Residuals,D,E,Fmax total |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
| Titanium G |
balance |
balance |
balance |
balance |
balance |
balance |
balance |
balance |
balance |
| Element |
Composition, % |
| Grade 31 |
Grade 32 |
Grade 33 |
Grade 34 |
Grade 35 |
Grade 36 |
Grade 37 |
Grade 38 |
| Nitrogen, max |
0.05 |
0.03 |
0.03 |
0.05 |
0.05 |
0.03 |
0.03 |
0.03 |
| Carbon, max |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
0.04 |
0.08 |
0.08 |
| Hydrogen,B,C max |
0.015 |
0.015 |
0.015 |
0.015 |
0.015 |
0.0035 |
0.015 |
0.015 |
| Iron, max |
0.30 |
0.25 |
0.30 |
0.30 |
0.20-0.80 |
0.03 |
0.30 |
1.2-1.8 |
| Oxygen, max |
0.35 |
0.11 |
0.25 |
0.35 |
0.25 |
0.16 |
0.25 |
0.20-0.30 |
| Aluminum |
... |
4.5-5.5 |
... |
... |
4.0 5.0 |
... |
1.0--2.0 |
3.5--4.5 |
| Vanadium |
... |
0.6-1.4 |
... |
... |
1.1-2.1 |
... |
... |
2.0-3.0 |
| Tin |
... |
0.6-1.4 |
... |
... |
... |
... |
... |
... |
| Ruthenium |
... |
... |
0.02-0.04 |
0.02-0.04 |
... |
... |
... |
... |
| Palladium |
0.04-0.08 |
... |
0.01-0.02 |
0.01-0.02 |
... |
... |
... |
... |
| Cobalt |
0.20-0.80 |
... |
... |
... |
... |
... |
... |
... |
| Molybdenum |
... |
0.6-1.2 |
... |
... |
1.5-2.5 |
... |
... |
... |
| Chromium |
... |
... |
0.1-0.2 |
0.1 0.2 |
... |
... |
... |
... |
| Nickel |
... |
... |
0.35-0.55 |
0.35-0.55 |
... |
... |
... |
... |
| Niobium |
... |
... |
... |
... |
... |
42.0-47.0 |
... |
... |
| Zirconium |
... |
0.6-1.4 |
... |
... |
... |
... |
... |
... |
| Silicon |
... |
0.06-0.14 |
... |
... |
0.20-0.40 |
... |
... |
... |
| Residuals,D,E,F max each |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
| Residuals,D,E,Fmax total |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
| Titanium G |
balance |
balance |
Remainder |
Remainder |
Remainder |
Remainder |
Remainder |
balance |
Note:
A. Analysis shall be completed for all elements listed in this table for each grade. The analysis results for the elements not quantified in the table need not be reported
unless the concentration level is greater than 0.1 % each or 0.4 % total.
B. Lower hydrogen may be obtained by negotiation with the manufacturer.
C. Final product analysis.
D. Need not be reported.
E. A residual is an element present in a metal or an alloy in small quantities and is inherent to the manufacturing process but not added intentionally. In titanium these
elements include aluminum, vanadium, tin, chromium, molybdenum, niobium, zirconium, hafnium, bismuth, ruthenium, palladium, yttrium, copper, silicon, cobalt, tantalum,
nickel, boron, manganese, and tungsten.
F. The purchaser may, in his written purchase order, request analysis for specific residual elements not listed in this specification.
G. The percentage of titanium is determined by difference.
Mechanical Properties
| Grade |
Tensile Strength, min |
Yield Strength (0.2 % Offset) min or range |
Elongation in 4D, min, % |
Reduction of Area, min % |
| ksi |
MPa |
ksi |
MPa |
| 1 |
35 |
240 |
20 |
138 |
24 |
30 |
| 2 |
50 |
345 |
40 |
275 |
20 |
30 |
| 2HB,C |
58 |
400 |
40 |
275 |
20 |
30 |
| 3 |
65† |
450† |
55 |
380 |
18 |
30 |
| 4 |
80† |
550† |
70 |
483 |
15 |
25 |
| 5 |
130 |
895 |
120 |
828 |
10 |
25 |
| 6 |
120 |
828 |
115 |
795 |
10 |
25 |
| 7 |
50 |
345 |
40 |
275 |
20 |
30 |
| 7HB,C |
58 |
400 |
40 |
275 |
20 |
30 |
| 9 |
90 |
620 |
70 |
483 |
15 |
25 |
| 9D |
90 |
620 |
70 |
483 |
12 |
25 |
| 11 |
35 |
240 |
20 |
138 |
24 |
30 |
| 12 |
70 |
483 |
50 |
345 |
18 |
25 |
| 13 |
40 |
275 |
25 |
170 |
24 |
30 |
| 14 |
60 |
410 |
40 |
275 |
20 |
30 |
| 15 |
70 |
483 |
55 |
380 |
18 |
25 |
| 16 |
50 |
345 |
40 |
275 |
20 |
30 |
| 16HB,C |
58 |
400 |
40 |
275 |
20 |
30 |
| 17 |
35 |
240 |
20 |
138 |
24 |
30 |
| 18 |
90 |
620 |
70 |
483 |
15 |
25 |
| 18D |
90 |
620 |
70 |
483 |
12 |
20 |
| 19E |
115 |
793 |
110 |
759 |
15 |
25 |
| 19F |
135 |
930 |
130 to 159 |
897 to 1096 |
10 |
20 |
| 19G |
165 |
1138 |
160 to 185 |
1104 to 1276 |
5 |
20 |
| 20E |
115 |
793 |
110 |
759 |
15 |
25 |
| 20F |
135 |
930 |
130 to 159 |
897 to 1096 |
10 |
20 |
| 20G |
165 |
1138 |
160 to 185 |
1104 to 1276 |
5 |
20 |
| 21E |
115 |
793 |
110 |
759 |
15 |
35 |
| 21F |
140 |
966 |
130 to 159 |
897 to 1096 |
10 |
30 |
| 21G |
170 |
1172 |
160 to 185 |
1104 to 1276 |
8 |
20 |
| 23 |
120 |
828 |
110 |
759 |
10 |
15 |
| 23° |
120 |
828 |
110 |
759 |
7.5H, 6.0l |
25 |
| 24 |
130 |
895 |
120 |
828 |
10 |
25 |
| 25 |
130 |
895 |
120 |
828 |
10 |
25 |
| 26 |
50 |
345 |
40 |
275 |
20 |
30 |
| 26HB,C |
58 |
400 |
40 |
275 |
20 |
30 |
| 27 |
35 |
240 |
20 |
138 |
24 |
30 |
| 28 |
90 |
620 |
70 |
483 |
15 |
25 |
| 28° |
90 |
620 |
70 |
483 |
12 |
20 |
| 29 |
120 |
828 |
110 |
759 |
10 |
25 |
| 29° |
120 |
828 |
110 |
759 |
7.5H, 6.0l |
15 |
| 30 |
50 |
345 |
40 |
275 |
20 |
30 |
| 31 |
65 |
450 |
55 |
380 |
18 |
30 |
| 32 |
100 |
689 |
85 |
586 |
10 |
25 |
| 33 |
50 |
345 |
40 |
275 |
20 |
30 |
| 34 |
65 |
450 |
55 |
380 |
18 |
30 |
| 35 |
130 |
895 |
120 |
828 |
5 |
20 |
| 36 |
65 |
450 |
60 to 95 |
410 to 655 |
10 |
... |
| 37 |
50 |
345 |
31 |
215 |
20 |
30 |
| 38 |
130 |
895 |
115 |
794 |
10 |
25 |
Note:
A. These properties apply to longitudinal sections up to 3 in. (76 mm) in thickness with a maximum of 10 in.2 (64.5 cm2). Mechanical properties of larger sections shall be negotiated between the manufacturer and purchaser.
B. Material is identical to the corresponding numeric grade (that is, Grade 2H = Grade 2) except for the higher guaranteed minimum UTS, and may always be certified as meeting the requirements of its corresponding numeric grade. Grade 2H, 7H, 16H, and 26H are intended primarily for pressure vessel use.
C. The H grades were added in response to a user association request based on its study of over 5200 commercial Grade 2, 7, 16, and 26 test reports, where over 99 %
met the 58 ksi minimum UTS.
D. Properties for material in transformed-beta condition.
E.Properties for solution treated condition.
F. Properties for solution treated and aged condition–Moderate strength (determined by aging temperature).
G. Properties for solution treated and aged condition–High strength (determined by aging temperature).
H. For product section or wall thickness values < 1.0 in.
I. For product section or wall thickness values $1.0 in.
†. Tensile strength for Grade 3 and Grade 4 was corrected editorially.