The tables below are based on USA ASTM Grades which seem to be the most popular.
| ASTM B265 |
Notes |
| Grade 1 |
Unalloyed Titanium..Main use in heat exchangers, Airframes, Chemical: desalination and marine parts: Plate-type heat exchangers: cold spun or pressed parts : Platinised anodes: High formability |
| Grade 2 |
Unalloyed Titanium. Airframes, aircraft engines: marine chemical parts: heat exchangers: condenser and evaporator tubing. Good combination of strength, formability, ductility and weldability. |
| Grade 3 |
Unalloyed Titanium. Chemical, marine, airframe and aircraft engine parts which require formability strength, weldability and corrosion resistance. |
| Grade 4 |
The highest strength pure unalloyed Titanium: Chemical, marine, airframe and aircraft engine parts: surgical implants: high speed fans: gas compressors: Used in hydraulic and instrumentation tubing: good formability and corrosion resistance combined with |
| Grade 5 |
Titanium alloy. 6% aluminium, 4% vanadium.:Popular alpha-beta, medium strength alloy : Main uses - airframe and turbine engine parts (blades, discs, wheels, spacer rings)' ordnance equipment: pressure vessels: rocket motor cases. Also used for surgical ap |
| Grade 6 |
-- |
| Grade 7 |
Unalloyed Titanium plus 0.12% to 0.25% palladium. Medium strength:Comments: Industrial alloy with superior corrosion resistance. standard oxygen. Good corrosion resistance in reducing and oxidising environments. |
| Grade 9 |
Titanium Alpha-Beta phase alloy including 3% aluminium and 2.5% vanadium. High strength and corrosion resistance. Aerospace, petrochemical, hydraulic & instrumentation tubing, sports and subsea applications, pressure vessels, honeycomb foil: Normally us |
| Grade 11 |
Unalloyed Titanium plus 0.12% to 0.25% palladium. Low oxygen. Low strength. Especially suitable for deep drawing. Permissible hydrogen content depends on form. Pd additions increase corrosion resistance to certain media. Corrosion resistance: Very goo |
| Grade 12 |
Titanium alloy including 0.3% molybdenum, 0.8% nickel. High strength. Good Heat and Wear resistance. Used for shell and heat exchangers, hydrometallurgical applications. industry. Good corrosion resistance: Highly weldable. |
| Grade 13 |
Titanium alloy including 0.5% nickel and 0.05% ruthenium. Low oxygen. |
| Grade 14 |
Titanium alloy including 0.5% nickel and 0.05% ruthenium. Standard oxygen. |
| Grade 15 |
Titanium alloy including 0.5% nickel and 0.05% ruthenium. Medium oxygen. |
| Grade 16 |
Unalloyed Titanium plus 0.04% to 0.08% palladium. Standard oxygen, medium strength. Used in chemical industries (improved corrosion resistance). |
| Grade 17 |
Unalloyed Titanium plus 0.04% to 0.08% palladium. Low oxygen, low strength. |
| Grade 18 |
Titanium alloy including 3% aluminium, 2.5% vanadium plus 0.04% to 0.8% palladium. |
| Grade 19 |
Titanium alloy including 3% aluminium, 8% vanadium, 6% chromium, 4% zirconium, 4% molybdenum. |
| Grade 20 |
Titanium alloy including 3% aluminium, 8% vanadium, 6% chromium, 4% zirconium, 4% molybdenum plus 0.04% to 0.08% palladium. |
| Grade 21 |
Titanium alloy including 15% molybdenum, 3% aluminium, 2.7% niobium, 0.25% silicon. |
| Grade 23 |
Titanium alloy including 6% aluminium, 4% vanadium, extra low interstitial, ELI. |
| Grade 24 |
Titanium alloy including 6% aluminium, 4% vanadium plus 0.04% to 0.08% palladium. |
| Grade 25 |
Titanium alloy including 6% aluminium, 4% vanadium plus 0.3% to 0.6% nickel, 0.04% to 0.08% palladium. |
| Grade 26 |
Unalloyed Titanium plus 0.08% to 0.14% ruthenium. Standard oxygen, medium strength. Competitive alternative to grade 7. |
| Grade 27 |
Unalloyed Titanium plus 0.08% to 0.14% ruthenium. Low oxygen, low strength. |
| Grade 28 |
Titanium alloy including 3% aluminium, 2.5% vanadium, plus 0.08% to 0.14% ruthenium. High strength with enhanced corrosion alternative to Grade 9. |
Some detailed information
Most Common Applications
Chemical plants:
Titanium is highly corrosion resistant. It is used in many types of chemical equipment. About 30% of titanium used domestically is for chemical plants.
Seawater usage:
Titanium is greatly used in nuclear and fossil power stations. It is used for the big heat exchanger, CONDENSOR, which cools the steam form the turbine with seawater which does not corrode so the wall thickness of the tube is as thin as 0.5 mm. Condensor tubes consume about 20% of domestic titanium consumption.
Titanium in daily life:
Recently, titanium is being used in many goods we use such as in sports, building material, medical applications and accessories. This amounts to about 30% of domestic consumption.
Aerospace:
In the USA, about 70% of titanium produced is used for aerospace parts. In Japan only 2-3% of the titanium is consumed for aerospace usage. Thus, there is a big difference of market structure between Japan and USA.
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