Titanium and titanium alloys are noted for their high strength-to-weight ratio, which is higher than any other metal. When titanium is unalloyed, titanium is as strong as some steels and nearly half their weight.
|
ASTM Grade
|
Alloy Composition
|
Min.
|
Min.
|
Young’s
|
UNS No.
|
Sour Service
|
|
UTS (Mpa)
|
YS (Mpa)
|
Modulus (Gpa)
|
|
Approved*
|
|
1
|
Unalloyed Ti
|
240
|
170
|
103
|
R50250
|
|
|
2
|
Unalloyed Ti
|
345
|
275
|
103
|
R50400
|
Yes
|
|
3
|
Unalloyed Ti
|
450
|
380
|
103
|
R50550
|
|
|
4
|
Unalloyed Ti
|
550
|
480
|
105
|
R50700
|
|
|
5
|
Ti-6AL-4V
|
895
|
825
|
114
|
R56400
|
|
|
6
|
Ti-5Al-2.5Sn
|
825
|
795
|
110
|
R54250
|
|
|
7
|
Ti-0.15Pd
|
345
|
275
|
103
|
R52400
|
|
|
9
|
Ti-3Al-2.5V
|
620
|
485
|
107
|
R56320
|
|
|
10
|
Ti-11.5Mo-6Zr-4.5Sn
|
690
|
620
|
103
|
R58030
|
|
|
11
|
Ti-0.15Pd
|
240
|
170
|
103
|
R52250
|
|
|
12
|
Ti-0.3-Mo-0.8Ni
|
485
|
345
|
103
|
R53400
|
Yes
|
|
13
|
Ti-0.5Ni-0.05Ru
|
280
|
170
|
103
|
R53413
|
|
|
14
|
Ti-0.5Ni-0.05Ru
|
410
|
280
|
103
|
R53414
|
|
|
15
|
Ti-0.5Ni-0.05Ru
|
480
|
380
|
103
|
R53415
|
|
|
16
|
Ti-0.05Pd
|
345
|
275
|
103
|
R52402
|
|
|
17
|
Ti-0.05Pd
|
240
|
170
|
103
|
R52252
|
|
|
18
|
Ti-3Al-2.5V-0.05Pd
|
620
|
480
|
105
|
R56322
|
|
|
19
|
Ti-3Al-8V-6Cr-4Zr-4Mo (Beta C)
|
795
|
760
|
93-96
|
R58640
|
Yes
|
|
aged
|
1170
|
1105
|
102
|
|
|
|
20
|
Ti-3Al-8V-6Cr-4Zr-4Mo-0.05Pd
|
795
|
760
|
93-96
|
R58645
|
|
|
aged
|
1530
|
1879
|
165
|
|
|
|
21
|
Ti-15Mo-2.7Nb-3Al-0.25Si
|
790
|
760
|
103
|
R58210
|
|
|
(TIMETAL 21S) aged
|
1170
|
1100
|
103
|
|
|
|
23
|
Ti-6Al-4V ELI
|
825
|
760
|
114
|
R56407
|
|
|
24
|
Ti-6Al-4V-0.05Pd
|
900
|
830
|
113
|
R56405
|
|
|
25
|
Ti-6Al-4V-0.5Ni-0.05Pd
|
900
|
830
|
113
|
R56403
|
Yes
|
|
26
|
Ti-0.1Ru (Grade 2 interstitials)
|
345
|
275
|
103
|
R52404
|
|
|
27
|
Ti-0.1Ru (Grade 1 interstitials)
|
240
|
170
|
103
|
R52254
|
|
|
28
|
Ti-3Al-2.5V-0.1Ru
|
620
|
485
|
107
|
R56323
|
Yes
|
|
29
|
Ti-6Al-4V-0.1Ru
|
825
|
760
|
114
|
R56404
|
Yes
|
|
