Titanium Grade 4
Titanium Grade 4 is the strongest of the commercially pure titanium grades, offering excellent corrosion resistance, moderate ductility, and high strength. With a higher content of oxygen compared to Grades 1–3, it is widely used in industries requiring durability in corrosive environments, such as aerospace, chemical processing, medical implants, and marine applications. Grade 4 is known for its superior strength-to-weight ratio and biocompatibility.
- High Strength: Highest strength among commercially pure titanium grades.
- Corrosion Resistance: Excellent resistance to a wide range of corrosive media, including chlorides and acids.
- Biocompatibility: Non-toxic and suitable for medical implants and devices.
- Good Weldability: Easily welded and fabricated using conventional techniques.
- Moderate Formability: Suitable for applications requiring moderate shaping and cold forming.
Chemical Composition
Element | Composition (%) |
Titanium (Ti) | ≥ 99.2 |
Oxygen (O) | ≤ 0.40 |
Iron (Fe) | ≤ 0.50 |
Carbon (C) | ≤ 0.08 |
Nitrogen (N) | ≤ 0.05 |
Hydrogen (H) | ≤ 0.015 |
Mechanical Properties
Property | Value |
Tensile Strength | ≥ 550 MPa |
Yield Strength (0.2% Offset) | ≥ 483 MPa |
Elongation | ≥ 15% |
Hardness | ~200 HB |
Density | 4.51 g/cm³ |
Operating Temperature Range | -253°C to 400°C |
Applications
- Aerospace: Hydraulic tubing, structural components, and airframe parts.
- Medical: Surgical implants, dental instruments, and orthopedic components.
- Chemical Processing: Heat exchangers, reactor vessels, and piping systems.
- Marine: Saltwater-resistant hardware, ship components, and offshore structures.
- Power Generation: Condenser tubing and corrosion-resistant piping systems.
Forms Available
- Sheets & Plates: Ideal for structural parts and protective linings.
- Bars & Rods: Used in machined components and surgical instruments.
- Pipes & Tubes: Suitable for fluid transport in corrosive environments.
Equivalent Grades
Standard | Equivalent Grade |
UNS | R50700 |
ASTM | B265, B348, B861 |
ISO | 5832-2 |
Advantages
- Superior corrosion resistance in oxidizing and reducing environments.
- Highest strength among commercially pure titanium grades.
- Lightweight yet strong, contributing to energy-efficient applications.
- Excellent performance in cryogenic and elevated temperature settings.
- Standard Finishes: Include pickled, polished, or cold-rolled surfaces.
- Optional Coatings: Anodizing or PTFE can be applied for specific applications.
High-quality standards are maintained throughout the manufacturing process:
- Certifications: Compliant with ASTM B265/B348/B861 and ISO 5832-2 standards.
- Packaging: Materials are securely packed in wooden crates or protective wraps to prevent damage during handling and shipping.
FAQs
Grade 4 contains more oxygen than Grade 2, giving it higher strength but slightly lower ductility and formability.
Yes, its excellent resistance to seawater corrosion makes it ideal for marine and offshore uses.
Absolutely. Its biocompatibility and strength make it a top choice for surgical implants and medical devices.
Products
Industry We Serve
- Oil & Gas industries
- Chemical process industries
- Pump and valve in high pressure component
- Food industries
- Pulp and paper industry
- Aerospace industry
- Power plant
- Mechanical component
- Sugar industry
- Cement industry