Analysis Of Gr1 Commercially Pure Titanium Properties

Grade 1 is the base grade of commercially pure titanium with the highest purity, best plasticity and optimal formability, same as the national standard TA1. It features low strength, high plasticity, excellent corrosion resistance and weldability as its core characteristics. Grade 1 is the best performing pure titanium material for precision forming, corrosion resistance and lightweight applications.

Material type: Alpha-type commercially pure titanium
Titanium content: ≥99.5%
Key impurity control: O≤0.18%, Fe≤0.20%, C≤0.08%, N≤0.03%, H≤0.015%
Corresponding grades: ASTM Gr1, GB/T TA1, DIN 3.7025
Core logic: Low oxygen content → high plasticity; high purity → high corrosion resistance and high biocompatibility

Density: 4.51 g/cm³, about 57% of steel, with outstanding lightweight performance
Melting point: Approximately 1725℃
Thermal conductivity: Low, about 15.2 W/(m·K)
Modulus of elasticity: Moderate, with stable fatigue and impact resistance

Tensile strength: ≥240 MPa
Yield strength: ≥140 MPa
Elongation: ≥24%
Hardness: 120–170 HV
Characteristics: Low strength, high plasticity, easy cold working

1. Excellent Cold Formability
It has the superior plasticity among commercially pure titanium grades, and can withstand deep drawing, bending, spinning and stamping for complex components with mild work hardening.Grade 1 is suitable for ultra-thin titanium plates, precision shells and special-shaped parts.

2. Superior Corrosion Resistance
A dense TiO₂ protective film is naturally formed on the surface to make it remain stable in seawater, chlorides, nitric acid, organic acids and humid atmosphere. Its corrosion resistance is better than conventional stainless steel, with an annual corrosion rate of less than 0.001 mm.

3. Excellent Weldability
Gr 1 can be welded by gas tungsten arc welding, plasma welding and electron beam welding. It can still maintain good plasticity and corrosion resistance after welding without complex heat treatment. For this reason, it is the preferred material for welded structural parts.
4. High Biocompatibility
Non-toxic, non-sensitizing and non-magnetic, it is compatible with human tissues and body fluids, meeting the safety requirements for medical implants and food contact grade applications.

5. Lightweight and Stability
It features low density, reasonable specific strength, no deformation or rust during long-term use and a long service life, achieving a better comprehensive cost performance.

Medical: Implants, surgical instruments, orthopedic consumables
Chemical industry: Heat exchangers, linings, anodes, seawater desalination equipment
Electronics: Ultra-thin titanium foils, capacitor shells, semiconductor components
Food equipment: Contact parts for dairy, beer and pharmaceutical production
Marine engineering: Ship accessories, deep-sea lightweight structures
Precision manufacturing: Deep-drawn parts, bellows, complex stamped parts

Gr1 commercially pure titanium is an all-round basic titanium material with high purity, high plasticity, high corrosion resistance, easy weldability and biological safety. It is especially suitable for scenarios with complex shapes and high requirements for forming and safety, and serves as a core material for high-end manufacturing and corrosion-resistant equipment.

Baoji Ruihang, a manufacturer of titanium and non-ferrous metal products, is specialized in R&D, production and sales. Our products cover a full range of standard grades, including Gr1, Gr2, Gr3, Gr4, Gr5, Gr7, Gr9, Gr23, and others. A pofessional service team is standing by for your inquiry.For more details about Gr5 Titanium Angle, please do not hesitate to contact us by email: Sam.Rui@bjrh-titanium.com.