ASTM B265 Specification

This specification is under the jurisdiction of ASTM Committee B10 on Reactive and Refractory Metals and Alloys and is the direct responsibility of Subcommittee B10.01 on Titanium.

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 Grade 13 Grade 14
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 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 0.08 0.08
Hydrogen, B,Cmax 0.015 0.015 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 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 0.10 0.15
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 ... ... ... ... ... ... ... ... ... ... ... ... 0.04-0.06 0.04-0.06
Paladium ... ... ... ... ... ... ... 0.12-0.25 0.12-0.25 ... 0.12-0.25 ... ... ...
Cobalt
 ... ... ... ... ... ... ... ... ... ... ... ... ... ...
Molybdenum ... ... ... ... ... ... ... ... ... ... ... 0.2-0.4 ... ...
Chromium ... ... ... ... ... ... ... ... ... ... ... ... ... ...
Nickel ... ... ... ... ... ... ... ... ... ... ... 0.6-0.9 0.4-0.6 0.4-0.6
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 0.1 0.1
Residuals, D,E,F max 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 0.4 0.4
TitaniumG balance balance balance balance balance balance balance balance balance balance balance balance balance balance

Element		 Composition, %
Grade 15 Grade 16 Grade 16H Grade 17 Grade 18 Grade 19 Grade 20 Grade 21 Grade 23 Grade 24 Grade 25 Grade 26 Grade 26H
Nitrogen, max 0.05 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.05 0.05 0.03 0.03
Carbon, max 0.08 0.08 0.08 0.08 0.08 0.05 0.05 0.05 0.08 0.08 0.08 0.08 0.08
Hydrogen, B,Cmax 0.015 0.015 0.015 0.015 0.015 0.02 0.02 0.015 0.0125 0.015 0.0125 0.015 0.015
Iron, max 0.30 0.30 0.30 0.20 0.25 0.30 0.30 0.40 0.25 0.40 0.40 0.30 0.30
Oxygen, max 0.25 0.25 0.25 0.18 0.15 0.12 0.12 0.17 0.13 0.20 0.20 0.25 0.25
Aluminum ... ... ... ... 2.5-3.5 3.0-4.0 3.0-4.0 2.5-3.5 5.5-6.5 5.5-6.75 5.6-6.75 ... ...
Vanadium ... ... ... ... 2.0-3.0 7.5-8.5 7.5-8.5 ... 3.5-4.5 3.5-4.5 3.5-4.5 ... ...
Tin ... ... ... ... ... ... ... ... ... ... ... ... ...
Ruthenium 0.04-0.06 ... ... ... ... ... ... ... ... ... ... 0.08· 0.08-
Paladium ... ... ... ... ... ... ... ... ... ... ... 0.14 0.14
Cobalt
 ... 0.04-0.08 0.04-0.08 0.04-0.08 0.04-0.08 ... 0.04-0.08 ... ... 0.04-0.08 0.04-0.08 ... ...
Molybdenum ... ... ... ... ... 3.5-4.5 3.5-4.5 14.0-16.0 ... ... ... ... ...
Chromium ... ... ... ... ... 5.5-6.5 5.5-6.5 ... ... ... ... ... ...
Nickel 0.4-0.6 ... ... ... ... ... ... ... ... ... 0.3-0.8 ... ...
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 0.15 0.15 0.15
 0.1 0.1 0.1 t 0.1 0.1
Residuals, D,E,F max 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 0.4
TitaniumG balance balance balance balance balance balance balance balance balance balance balance balance balance

Element		 Composition, %
Grade 27 Grade 28 Grade 29 Grade 30 Grade 31 Grade 32 Grade 33 Grade 34 Grade 35 Grade 36 Grade 37 Grade 38
Nitrogen, max 0.03 0.03 0.03 0.03 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 0.08 0.08 0.08 0.08 0.04 0.08 0.08
Hydrogen, B,Cmax 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.0035 0.015 0.015
Iron, max 0.20 0.25 0.25 0.30 0.30 0.25 0.30 0.30 0.20-0.80 0.03 0.30 1.2-1.8
Oxygen, max 0.18 0.15 0.13 0.25 0.35 0.11 0.25 0.35 0.25 0.16 0.25 0.20-0.30
Aluminum ... 2.5-3.5 5.5-6.5 ... ... 4.5-5.5 ... ... 4.0-5.0 ... 1.0-2.0 3.5-4.5
Vanadium ... 2.0-3.0 3.5-4.5 ... ... 0.6-1.4 ... ... 1.1-2.1 ... ... 2.0-3.0
Tin ... ... ... ... ... 0.6-1.4 ... ... ... ... ... ...
Ruthenium 0.08-0.14 0.08-0.14 0.08-0.14 ... ... ... 0.02-0.04 0.02-0.04 ... ... ... ...
Paladium ... ... ... 0.04-0.08 0.04-0.08 ... 0.01-0.02 0.01-0.02 ... ... ... ...
Cobalt
 ... ... ... 0.20-0.80 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 0.1 0.1 0.1 0.1
Residuals, D,E,F max 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
TitaniumG balance balance balance balance balance balance Remainder Remainder Remainder Remainder Remainder Remainder
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.
†. Residual max value for silicon in Grade 25 was corrected editorially.

Mechanical PropertiesA



Grade		 Tensile Strength, min Yield Strength, 0.2 % Offset

Elongation in 2 in. or 50 mm, min, %
Bend TestB
min max
ksi MPa ksi MPa ksi MPa Under 0.070 in. (1.8 mm) in Thickness 0.070 to 0.187 in. (1.8–4.75 mm) in Thickness
1 35 240 20 138 45 310 24 3T 4T
2 50 345 40 275 65 450 20 4T 5T
2HC,D 58 400 40 275 65 450 20 ... ...
3 65 450 55 380 80 550 18 4T ST
4 80 550 70 483 95 655 15 5T 6T
5 130 895 120 828 ... ... 10E 9T 10T
6 120 828 115 793 ... ... 10E 8T 9T
7 50 345 40 275 65 450 20 4T 5T
7HC,D 58 400 40 275 65 50 20 ... ...
9 90 620 70 483 ... ... 15 5T 6T
11 35 240 20 138 45 310 24 3T 4T
12 70 483 50 345 ... ... 18 4T 5T
13 40 275 25 170 ... ... 24 3T 4T
14 60 410 40 275 ... ... 20 4T 5T
15 70 483 55 380 ... ... 18 4T 5T
16 50 345 40 275 65 450 20 4T 5T
16HC,D 58 400 40 275 65 450 20 ... ...
17 35 240 20 138 45 310 24 3T 4T
1B  90 620 70 483 ... ... 15 ST 6T
19G,H 115 793 110 759 ... ... 15 6T 6T
20G,H 115 793 110 759 ... ... 15 6T 6T
21G,H 115 793 110 759 ... ... 15 6T 6T
23G,H 120 828 110 759 ... ... 10 9T 10T
24 130 895 120 828 ... ... 10 ... ...
25 130 895 120 828 ... ... 10 ... ...
26 50 345 40 275 65 450 20 4T 5T
26HC,D 58 400 40 275 65 450 20 ... ...
27 35 240 20 138 45 310 24 3T 4T
28 90 620 70 483 ... ... 1S 5T 6T
29 120 826 110 759 ... ... 10 S T 10T
30 50 345 40 275 65 450 20 4T 5T
31 65 450 55 380 80 550 18 4T 5T
32 100 689 85 586 ... ... 10E 7T 9T
33 50 345 40 275 65 450 20 4T 5T
34 65 450 55 380 80 550 18 4T 5T
35 130 895 120 828 ... ... 5 16T 16T
36 65 450 60 410 95 655 10 ... ...
37 50 345 31 215 65 450 20 4T 5T
38 130 895 115 794 ... ... 10 8T 9T
Note:

A. Minimum and maximum limits apply to tests taken both longitudinal and transverse to the direction of rolling. Mechanical properties for conditions other than annealed or plate thickness over 1 in. (25 mm) may be established by agreement between the manufacturer and the purchaser.
B. T equals the thickness of the bend test specimen. Bend tests are not applicable to material over 0.187 in. (4.75 mm) in thickness.
C. 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.
D. 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.
E. For Grades 5, 6 and 32 the elongation on materials under 0.025 in. (0.635 mm) in thickness may be obtained only by negotiation.
F. Elongation for continuous rolled and annealed (strip product from coil) for Grade 9 and Grade 18 shall be 12 % minimum in the longitudinal direction and 8 % minimum in the transverse direction.
G. Properties for material in the solution treated condition.
H. Material is normally purchased in the solution treated condition. Therefore, properties for aged material shall be negotiated between manufacturer and purchaser.
I. As agreed upon between purchaser and supplier.