Description
Titanium ERTi-7 welding wire is a commercially pure titanium alloy (Grade 7) with a titanium purity of approximately 99.7%. It offers excellent corrosion resistance, particularly in oxidising and reducing environments, due to the addition of 0.12–0.25% palladium (Pd), which enhances its resistance to crevice corrosion and stress corrosion cracking.
This alloy has high ductility, good weldability, and a favourable strength-to-weight ratio, making it ideal for aerospace, marine, medical, and industrial applications.
The pickled surface finish provides a clean and oxide-free surface that ensures superior weld quality and performance.
Physical Properties of Titanium ERTi-7 Wire
| Grade |
Tensile Strength (MPa, Min) |
Yield Strength (MPa, Min) |
Elongation (%) |
| Gr1 |
240 |
170 |
24 |
| Gr2 |
345 |
275 |
20 |
| Gr4 |
550 |
483 |
15 |
| Gr5 |
895 |
828 |
10 |
| Gr7 |
400 |
275 |
18 |
| Gr9 |
620 |
483 |
15 |
| Gr12 |
483 |
348 |
18 |
| Gr23 |
793 |
759 |
10 |
Chemical Composition of Titanium ERTi-7 Wire
| Grade |
Fe (Max) |
O (Max) |
N (Max) |
C (Max) |
H (Max) |
Pd (Max) |
Al (%) |
V (%) |
Ni (Max) |
Mo (Max) |
Ti |
| Gr1 |
0.20 |
0.18 |
0.03 |
0.08 |
0.015 |
— |
— |
— |
— |
— |
Balance |
| Gr2 |
0.30 |
0.25 |
0.03 |
0.08 |
0.015 |
— |
— |
— |
— |
— |
Balance |
| Gr4 |
0.50 |
0.40 |
0.05 |
0.08 |
0.015 |
— |
— |
— |
— |
— |
Balance |
| Gr5 |
0.40 |
0.20 |
0.05 |
0.08 |
0.015 |
— |
5.5–6.7 |
3.5–4.5 |
— |
— |
Balance |
| Gr7 |
0.30 |
0.25 |
0.03 |
0.08 |
0.015 |
0.12–0.25 |
— |
— |
— |
— |
Balance |
| Gr9 |
0.25 |
0.15 |
0.03 |
0.08 |
0.015 |
— |
2.5–3.5 |
2.0–3.0 |
— |
— |
Balance |
| Gr12 |
0.30 |
0.25 |
0.03 |
0.08 |
0.015 |
— |
0.6–0.9 |
0.2–0.4 |
— |
— |
Balance |
| Gr23 |
0.25 |
0.03 |
0.03 |
0.08 |
0.0125 |
— |
5.5–6.5 |
3.5–4.5 |
— |
— |
Balance |
Applications
-
Automotive Industry
Used in the production of exhaust systems, engine components, and other critical automotive parts requiring lightweight and corrosion-resistant materials.
-
Aerospace Industry
Ideal for manufacturing fasteners, structural components, and airframe parts where strength, weight reduction, and corrosion resistance are essential.
-
Marine Industry
Extensively used in shipbuilding, propellers, rudders, and offshore equipment due to its superior seawater resistance.
-
Medical Applications
Applied in medical implants, prosthetics, and surgical instruments due to its biocompatibility and non-toxic properties.
-
Industrial Fabrication
Used in chemical processing equipment, valves, heat exchangers, and pumps operating in corrosive environments.
Features
Excellent corrosion resistance in oxidising and reducing media
Superior weldability and formability
High strength-to-weight ratio
Non-magnetic and biocompatible
Ideal for high-performance and critical environments
