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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).
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.
High Temperature Strength – An Explanation of Creep and Rupture
High Temperature Strength – An Explanation of Creep and Rupture Back To All Articles Share: More Articles Quote, Buy, Track! We make it easy to
Positive Material Identification (PMI)
Positive Material Identification (PMI) Back To All Articles Share: More Articles Quote, Buy, Track! We make it easy to get instant pricing and purchase your
The History and Uses of AL-6XN®
The History and Uses of AL-6XN® Back To All Articles Share: More Articles Quote, Buy, Track! We make it easy to get instant pricing and
Bar Products: Specifications, Key Processes, and Common Confusions Explained
Bar Products: Specifications, Key Processes, and Common Confusions Explained Back To All Articles Share: More Articles Quote, Buy, Track! We make it easy to get
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Explore the causes and solutions for chloride stress corrosion cracking (CSCC) in 300 series stainless steels used in indoor swimming pool environments.
