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Rolled Alloys provides the following information to offer a basic understanding of the various titanium grades and their relative properties.
Titanium comes in two main categories: commercially pure grades and titanium alloy grades. Titanium alloy categories include alpha-titanium, beta-titanium, and alpha-beta titanium, which correspond to different structural phases of the material. The commercially pure grades are classified as Grades 1 through 4. Each grade exhibits distinct variations in allowable element limits and strength levels. More detailed information about the chemical compositions and mechanical properties of these grades is provided below.
| Grade | C | N | O | H | Fe | Ti |
| 1 | 0.08 | 0.03 | 0.18 | 0.015 | 0.2 | Bal |
| 2 | 0.08 | 0.03 | 0.25 | 0.015 | 0.3 | Bal |
| 3 | 0.08 | 0.05 | 0.35 | 0.015 | 0.3 | Bal |
| 4 | 0.08 | 0.05 | 0.40 | 0.015 | 0.5 | Bal |
*All values are maximums unless a range is provided
| Grade | Tensile (ksi) | Yield (ksi) | Elongation (%) |
| 1 | 35 | 20 | 24 |
| 2 | 50 | 40 | 20 |
| 3 | 65 | 55 | 18 |
| 4 | 80 | 70 | 15 |
*All values are minimums per ASTM B348
Three titanium alloys closely resemble commercially pure titanium being Grades 7, 11, and 12. Grade 7 is comparable to Grade 2 in terms of mechanical properties but boasts superior corrosion resistance due to the addition of up to 0.25% Pd, making it exceptionally resilient against reducing acids. Similarly, Grade 11 shares similarities with Grade 1 but includes an addition of up to 0.25% Pd, enhancing its resistance to crevice corrosion and reducing acids. Grade 12, on the other hand, features slightly higher minimum mechanical property requirements than Grade 3 but lower than Grade 4. What sets Grade 12 apart from the commercially pure grades is its composition, containing 0.60-0.90% nickel content and 0.20-0.40% molybdenum. The tables below present the chemical compositions and mechanical properties of these alloys.
Grade | C | N | O | H | Fe | Pd | Ni | Mo | Ti |
7 | 0.08 | 0.03 | 0.25 | 0.015 | 0.30 | 0.12-0.25 | – | – | Bal |
11 | 0.08 | 0.03 | 0.18 | 0.015 | 0.20 | 0.12-0.25 | – | – | Bal |
12 | 0.08 | 0.03 | 0.25 | 0.015 | 0.30 | – | 0.60-0.90 | 0.20-0.40 | Bal |
*All values are maximums unless a range is provided
Grade | Tensile (ksi) | Yield (ksi) | Elongation (%) |
7 | 50 | 40 | 20 |
11 | 35 | 20 | 24 |
12 | 70 | 50 | 18 |
*All values are minimums per ASTM B348
The next alloy, often called “6-4” or Grade 5, is the most widely used titanium alloy globally, constituting over half of the world’s titanium production. Another widely utilized variation is 6-4 ELI (Extra Low Interstitial), recognized as Grade 23, predominantly employed in the medical implant industry. All 6-4 alloys belong to the alpha-beta alloy category and can be heat-treated to achieve a wide range of properties, depending on the heat treatment applied. However, it’s worth noting that 6-4 ELI presents challenges in achieving minimum mechanical heat-treat properties due to its strict maximum oxygen requirement. Please consult the table below for detailed information on chemistry and typical mechanical properties.
Grade | Al | V | C | N | O | H | Fe | Ti |
5 | 5.50-6.75 | 3.50-4.50 | 0.08 | 0.05 | 0.20 | 0.015 | 0.40 | Bal |
5 STA | 5.50-6.75 | 3.50-4.50 | 0.08 | 0.05 | 0.20 | 0.015 | 0.40 | Bal |
23 | 5.50-6.50 | 3.50-4.50 | 0.08 | 0.03 | 0.13 | 0.0125 | 0.25 | Bal |
*All values are maximums unless a range is provided
Grade | Tensile (ksi) | Yield (ksi) | Elongation (%) |
5 | 130 | 120 | 10 |
5 STA | 130 | 120 | 10 |
23 | 120 | 110 | 10 |
*All values are minimums per ASTM B348
For more specific titanium questions, give us a call at 800-521-0332 or email us at help-tech@rolledalloys.com
Titanium Grade Chemistry Table
Grade | C | O | N | H | Fe | Al | V | Pd | Ru | Ni | Mo | Cr | Co | Zr | Nb | Sn | Si | Ti |
1 | 0.08 | 0.18 | 0.03 | 0.015 | 0.20 | – | – | – | – | – | – | – | – | – | – | – | – | Bal |
2 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | – | – | – | – | – | – | – | – | – | – | – | – | Bal |
3 | 0.08 | 0.35 | 0.05 | 0.015 | 0.30 | – | – | – | – | – | – | – | – | – | – | – | – | Bal |
4 | 0.08 | 0.10 | 0.05 | 0.015 | 0.50 | – | – | – | – | – | – | – | – | – | – | – | – | Bal |
5 | 0.08 | 0.20 | 0.05 | 0.015 | 0.40 | 5.50-6.75 | 3.50-4.50 | – | – | – | – | – | – | – | – | – | – | Bal |
6 | 0.08 | 0.20 | 0.03 | 0.015 | 0.50 | 4.00-6.00 | – | – | – | – | – | – | – | – | – | 2.00-3.00 | – | Bal |
7 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | – | – | 0.12-0.25 | – | – | – | – | – | – | – | – | – | Bal |
9 | 0.08 | 0.15 | 0.03 | 0.015 | 0.25 | 2.50-3.50 | 2.00-3.00 | – | – | – | – | – | – | – | – | – | – | Bal |
11 | 0.08 | 0.18 | 0.03 | 0.015 | 0.20 | – | – | 0.12-0.25 | – | – | – | – | – | – | – | – | – | Bal |
12 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | – | – | – | – | 0.60-0.90 | 0.20-0.40 | – | – | – | – | – | – | Bal |
13 | 0.08 | 0.1 | 0.03 | 0.015 | 0.20 | – | – | – | 0.04-0.06 | 0.40-0.60 | – | – | – | – | – | – | – | Bal |
14 | 0.08 | 0.15 | 0.03 | 0.015 | 0.30 | – | – | – | 0.04-0.06 | 0.40-0.60 | – | – | – | – | – | – | – | Bal |
15 | 0.08 | 0.25 | 0.05 | 0.015 | 0.30 | – | – | – | 0.04-0.06 | 0.40-0.60 | – | – | – | – | – | – | – | Bal |
16 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | – | – | 0.04-0.08 | – | – | – | – | – | – | – | – | – | Bal |
17 | 0.08 | 0.18 | 0.03 | 0.015 | 0.20 | – | – | 0.04-0.08 | – | – | – |
| – | – | – | – | – | Bal |
18 | 0.08 | 0.15 | 0.03 | 0.015 | 0.25 | 2.50-3.50 | 2.00-3.00 | 0.04-0.08 | – | – | – | – | – | – | – | – | – | Bal |
19 | 0.05 | 0.12 | 0.03 | 0.02 | 0.30 | 3.00-4.00 | 7.50-8.50 | – | – | – | 3.50-4.50 | 5.50-6.50 | – | 3.50-4.50 | – | – | – | Bal |
20 | 0.05 | 0.12 | 0.03 | 0.02 | 0.30 | 3.00-4.00 | 7.50-8.50 | 0.04-0.08 | – | – | 3.50 | 5.50-6.50 | – | – | – | – | – | Bal |
21 | 0.05 | 0.17 | 0.03 | 0.015 | 0.40 | 2.50-3.50 | – | – | – | – | 4.50 | – | – | – | 2.20-3.20 | – | 0.15-0.25 | Bal |
23 | 0.08 | 0.13 | 0.03 | 0.0125 | 0.25 | 5.50-6.50 | 3.50-4.50 | – | – | – | 14.00-16.00 | – | – | – | – | – | – | Bal |
24 | 0.08 | 0.20 | 0.05 | 0.015 | 0.40 | 5.50-6.75 | 3.50-4.50 | 0.04-0.08 | – | – | – | – | – | – | – | – | – | Bal |
25 | 0.08 | 0.20 | 0.05 | 0.015 | 0.40 | 5.50-6.75 | 3.50-4.50 | 0.04-0.08 | – | 0.30-0.08 | – | – | – | – | – | – | – | Bal |
26 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | – | – | – | 0.08-0.14 | – | – | – | – | – | – | – | – | Bal |
27 | 0.08 | 0.18 | 0.03 | 0.015 | 0.20 | – | – | – | 0.08-0.14 | – | – | – | – | – | – | – | – | Bal |
28 | 0.08 | 0.15 | 0.03 | 0.015 | 0.25 | 2.50-3.50 | 2.00-3.00 | – | 0.08-0.14 | – | – | – | – | – | – | – | – | Bal |
29 | 0.08 | 0.13 | 0.03 | 0.0125 | 0.25 | 5.50-6.50 | 3.50-4.50 | – | 0.08-0.14 | – | – | – | – | – | – | – | – | Bal |
30 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | – | – | 0.04-0.08 | – | – | – | – | 0.20-0.80 | – | – | – | – | Bal |
31 | 0.08 | 0.35 | 0.05 | 0.015 | 0.30 | – | – | 0.04-0.08 | – | – | – | – | 0.20-0.80 | – | – | – | – | Bal |
32 | 0.08 | 0.11 | 0.03 | 0.015 | 0.25 | 4.50-5.50 | 0.60-1.40 | – | – | – | 0.60-1.20 | – | – | 0.60-1.40 | – | 0.60-1.40 | 0.60-0.14 | Bal |
33 | 0.08 | 0.25 | 0.03 | 0.015 | 0.30 | – | – | 0.01-0.02 | 0.02-0.04 | 0.35-0.55 | – | 0.10-0.20 | – | – | – | – | – | Bal |
34 | 0.08 | 0.35 | 0.05 | 0.015 | 0.30 | – | – | 0.01-0.02 | 0.02-0.04 | 0.35-0.55 | – | 0.10-0.20 | – | – | – | – | – | Bal |
35 | 0.08 | 0.25 | 0.05 | 0.015 | 0.20-0.80 | 4.00-5.00 | 1.10-2.10 | – | – | – | 1.50-2.50 | – | – | – | – | – | 0.20-0.40 | Bal |
36 | 0.04 | 0.16 | 0.03 | 0.015 | 0.03 | – | – | – | – | – | – | – | – | – | 42.00-47.00 | – | – | Bal |
37 | 0.08 | 0.25 | 0.03 | 0.015 | 1.20-1.80 | 1.00-2.00 | – | – | – | – | – | – | – | – |
| – | – | Bal |
38 | 0.08 | 0.20-0.30 | 0.03 | 0.015 |
| 3.50-4.50 | 2.00-3.00 | – | – | – | – | – | – | – |
| – | – | Bal |
*All values are maximums unless a range is provided
Titanium Grade Mechanical Property Table
|
Grade |
Tensile (ksi) |
Yield (ksi) |
Elongation (%) |
|
1 |
35 |
20 |
24 |
|
2 |
50 |
40 |
20 |
|
2H |
58 |
40 |
20 |
|
3 |
65 |
55 |
18 |
|
4 |
80 |
70 |
15 |
|
5 |
130 |
150 |
10 |
|
6 |
120 |
115 |
10 |
|
7 |
50 |
40 |
20 |
|
7H |
58 |
40 |
20 |
|
9 |
90 |
70 |
15 |
|
9D |
90 |
70 |
12 |
|
11 |
35 |
20 |
24 |
|
12 |
70 |
50 |
18 |
|
13 |
40 |
25 |
24 |
|
14 |
60 |
40 |
20 |
|
15 |
70 |
55 |
18 |
|
16 |
50 |
40 |
20 |
|
16H |
58 |
40 |
20 |
|
17 |
35 |
20 |
24 |
|
18 |
90 |
70 |
15 |
|
18D |
90 |
70 |
12 |
|
19E |
115 |
110 |
15 |
|
19F |
135 |
130 to 159 |
10 |
|
19G |
165 |
160 to 185 |
5 |
|
20E |
115 |
110 |
15 |
|
20F |
135 |
130 to 159 |
10 |
|
20G |
165 |
160 to 185 |
5 |
|
21E |
115 |
110 |
15 |
|
21F |
140 |
130 to 159 |
10 |
|
21G |
170 |
160 to 185 |
8 |
|
23 |
120 |
110 |
10 |
|
23D |
120 |
110 |
7.5, 6.0 |
|
24 |
130 |
120 |
10 |
|
25 |
130 |
120 |
10 |
|
26 |
50 |
40 |
20 |
|
26H |
58 |
40 |
20 |
|
27 |
35 |
20 |
24 |
|
28 |
90 |
70 |
15 |
|
28D |
90 |
70 |
12 |
|
29 |
120 |
110 |
10 |
|
29D |
120 |
110 |
7.5, 6.0 |
|
30 |
50 |
40 |
20 |
|
31 |
65 |
55 |
18 |
|
32 |
100 |
85 |
10 |
|
33 |
50 |
40 |
20 |
|
34 |
65 |
55 |
18 |
|
35 |
130 |
120 |
5 |
|
36 |
65 |
60 to 95 |
10 |
|
37 |
50 |
31 |
20 |
|
38 |
130 |
115 |
10 |
*All values are minimums per ASTM B348
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).
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Explore the four key benefits of duplex stainless steel: high strength, superior corrosion resistance, ease of fabrication, and cost-effectiveness. Understand why 2205 is favored over 304/304L and 316/316L for industrial applications.
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P-Numbers and F-Numbers are essential classifications in the welding industry, particularly for projects that follow ASME codes and…
Chicago Oktobarfest 2024
Join us for food, demo’s and prizes on October 11th from 11 a.m to 3:30 p.m at 711 Phoenix Lake Ave, Streamwood, Illinois.
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