Titaniumm Alloy Sheet Gr5 Gr7 Ti Plate Properties Titanium Sheet Titanium Plate Titanium Foil Sheet
Introduction to Titanium Alloys:
Titanium alloys are known for their excellent combination of high strength, low weight, and corrosion resistance. Grade 5 (Ti-6Al-4V) and Grade 7 (Ti-0.2Pd) are two of the most widely used titanium alloys, with specific properties suited for demanding applications.

Titanium Grade 5 (Ti-6Al-4V) Alloy Sheet and Plate
Composition:
- Titanium (Ti): 90%
- Aluminum (Al): 6%
- Vanadium (V): 4%
Properties:
- High Strength: Grade 5 titanium, also known as Ti-6Al-4V, is the most commonly used titanium alloy. It has a high tensile strength ranging from 900 to 1,200 MPa and is approximately 30% stronger than pure titanium.
- Corrosion Resistance: Excellent resistance to corrosion in many environments, including seawater, acids, and alkaline solutions.
- Ductility: Good ductility and formability, making it suitable for complex shapes and forming processes.
- Fatigue Resistance: It offers good fatigue strength and can withstand repetitive loading and stress, ideal for aerospace applications.
- Workability: Good machinability but requires special handling due to its hardness.
- Density: 4.43 g/cm³, which is still relatively light compared to other metals with similar strength.
- Weldability: Excellent weldability with most standard welding methods.
Applications:
- Aerospace: Aircraft components, turbine blades, airframes, and engine parts.
- Medical: Implants, surgical devices, and prosthetics.
- Marine: Submarine components, ship parts.
- Automotive: High-performance racing parts.
Titanium Grade 7 (Ti-0.2Pd) Alloy Sheet and Plate:
Composition:
- Titanium (Ti): 99.8%
- Palladium (Pd): 0.2%
Properties:
- Corrosion Resistance: Grade 7 titanium has outstanding resistance to corrosion, especially in harsh chemical environments. The addition of palladium significantly enhances its resistance to hydrochloric acid, sulfuric acid, and chlorides.
- Strength: Slightly lower strength than Grade 5, with tensile strength around 550-690 MPa. However, it is still strong and durable.
- Formability: Grade 7 has excellent formability, making it easy to work with in various industries.
- Biocompatibility: Highly biocompatible, making it ideal for medical implants and devices.
- Density: 4.51 g/cm³, similar to pure titanium.
- Workability: Easily weldable, but palladium makes it more expensive and harder to machine compared to pure titanium.
Applications:
- Chemical Processing: Piping, heat exchangers, tanks, and other components in aggressive chemical environments.
- Marine: Excellent for underwater components due to superior resistance to seawater.
- Aerospace: Components requiring excellent resistance to corrosion and moderate strength.
- Medical: Components used in medical implants, devices, and prosthetics.
Titanium Foil Sheets:
Titanium foil sheets are thin sheets of titanium that are typically less than 0.15 mm thick. They are used for a variety of specialized applications due to their unique properties.
Properties:
- Flexibility: Very flexible and can be shaped into intricate designs without cracking.
- Strength-to-Weight Ratio: Despite being thin, titanium foil retains its high strength and corrosion resistance.
- Corrosion Resistance: Titanium foil offers excellent corrosion resistance and is commonly used in corrosive environments such as the aerospace and marine industries.
- Lightweight: It is extremely lightweight, making it ideal for applications where weight is a critical factor.
Applications:
- Aerospace: Used for aircraft parts, heat shields, and seals.
- Medical: Used in surgical instruments, implants, and prosthetics.
- Electronics: Used for applications requiring high precision and strength without adding significant weight.
Titanium Sheet and Plate:
Titanium sheets and plates are thicker forms of titanium that are commonly used in a wide variety of industrial applications. Sheets typically range from 0.5 mm to 6 mm in thickness, while plates are usually thicker than 6 mm.
General Properties:
- Corrosion Resistance: Excellent resistance to a wide range of chemicals, including acids, salts, and chlorides.
- High Strength: Titanium sheets and plates retain their high tensile strength, even at relatively thin thicknesses.
- Lightweight: Despite their strength, they are relatively light compared to other high-strength metals.
- Ductility: Titanium sheets and plates have good ductility, allowing for bending and forming.
- Weldability: Titanium sheets and plates can be easily welded, and they exhibit minimal warping or distortion during the process.
Applications:
- Aerospace: Aircraft components, heat exchangers, turbine blades, and fuselages.
- Chemical Processing: Tanks, pipes, heat exchangers, and reactors used in corrosive environments.
- Medical: Used in implants, prosthetics, and surgical instruments.
- Marine: Ship hulls, propellers, and offshore platforms.
Summary Comparison of Titanium Alloys
Grade | Composition | Tensile Strength | Corrosion Resistance | Applications |
Grade 5 (Ti-6Al-4V) | Ti: 90%, Al: 6%, V: 4% | 900-1,200 MPa | Excellent | Aerospace, Medical, Automotive, Marine |
Grade 7 (Ti-0.2Pd) | Ti: 99.8%, Pd: 0.2% | 550-690 MPa | Outstanding (due to Pd) | Chemical Processing, Marine, Medical |
Titanium Foil | Thin titanium sheet (varied purity) | Low thickness, flexible | Excellent | Aerospace, Medical, Electronics |
Titanium Sheet/Plate | Pure or alloyed titanium (varied) | 240-1,200 MPa | Excellent | Aerospace, Marine, Chemical Processing, Medical |
Comparison of Gr1, Gr2, and Gr5 Titanium Plates:
Property | Grade 1 | Grade 2 | Grade 5 |
Composition | 99.5% Titanium | 99.2% Titanium | 90% Titanium, 6% Al, 4% V |
Strength | Low | Moderate | High |
Corrosion Resistance | Excellent | Excellent | Good |
Weight | Light | Light | Moderate |
Biocompatibility | Excellent | Excellent | Good |
Workability | Excellent (Easy to weld) | Excellent (Easy to weld) | Good (Harder to work with) |
Applications | Chemical, Marine, Medical, Architectural | Chemical, Marine, Aerospace, Medical | Aerospace, Automotive, Medical, Sports Equipment |
Different Grades of Titanium:
Titanium materials are classified into various grades based on their composition and properties, with common grades being Grade 1, Grade 2, and Grade 5 titanium sheets.
Grade 1 titanium is a soft, pure titanium material with excellent formability and corrosion resistance, primarily used in applications that require high corrosion resistance and easy fabrication, such as chemical processing equipment, marine environments, and medical implants. Its composition consists of 99.5% titanium, with a tensile strength of 35,000 psi (241 MPa) and a yield strength of 30,000 psi (207 MPa), offering high ductility.
Grade 2 titanium is the most widely used of the pure titanium grades. Comprising 99% titanium, it provides higher strength and greater corrosion resistance than Grade 1, commonly used in aerospace, medical implants, chemical processing, and marine environments. Grade 2 titanium has a tensile strength of 50,000 psi (345 MPa) and a yield strength of 45,000 psi (310 MPa), with excellent resistance to seawater corrosion. Grade 5 titanium (Ti-6Al-4V) is the most commonly used titanium alloy, containing 6% aluminum and 4% vanadium, offering a combination of high strength and low weight. It is widely used in aerospace, military, medical implants, and high-end automotive parts.
Grade 5 titanium has a tensile strength of 130,000 psi (896 MPa) and a yield strength of 120,000 psi (827 MPa), with excellent corrosion and high-temperature resistance. Overall, Grade 1 and Grade 2 are mainly used in applications where corrosion resistance and ease of fabrication are essential, while Grade 5 excels in high-strength, corrosion-resistant, and high-temperature applications, making it ideal for high-performance uses.
Conclusion:
- Grade 1 titanium plates are ideal for applications that require excellent corrosion resistance, lightweight properties, and biocompatibility but do not demand high strength.
- Grade 2 titanium plates are versatile and used in industries like chemical processing, marine, and aerospace, offering a good balance of strength, corrosion resistance, and workability.
- Grade 5 titanium plates are preferred for high-performance applications where strength, heat resistance, and durability are critical, such as aerospace, medical implants, and high-end automotive components.
Each grade is suited to specific requirements based on the balance of properties like strength, corrosion resistance, and ease of fabrication, ensuring that titanium can meet the needs of a wide variety of industries.