C-103 Niobium Alloy Tube
High Strength, High Temperature Resistance: C-103 is designed to maintain strength and structural integrity at high temperatures, making it suitable for demanding applications.
Vibration Resistance: The alloy is extremely resistant to high-frequency vibrations, even at very low temperatures, which is critical for aerospace components.
Available Forms:
C-103 can be produced in a variety of forms, including plates, bars, wire and tubes.
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
- Send E-mail: ss@gneesteel.com
- Tel: +8615824687445
C-103 Niobium Tube Application

C103 Alloy Tube is a niobium-based alloy that is widely used in aerospace applications due to its excellent heat resistance, light weight, low cost, reliability, and ability to withstand strong vibrations and low temperatures. With a melting point of 2200 ± 30°C and a density of 0.15 lb/in3, the alloy is well suited for use in aerospace applications and in the manufacture of components for superheated thrusters and rocket engines. C103 Niobium Tube material is widely used in the manufacture of scramjet engine components.
C-103 Alloy Tube is produced by alloying niobium, hafnium, titanium, and zirconium into a very uniform ingot using a vacuum furnace, and then processed into plates, bars, blanks, custom parts, and other shapes as appropriate.
We can also customize this product to your specifications.
C-103 Niobium Alloy Tube Material Specification
| Hardness of C103 Niobium alloy | |||
| Shape | Status | Types of hardness | Value |
| Ingot | As-cast | HB (3tonФ 10/30") | 154-160 |
| Rod | extrude | 152-155 | |
| forge | 174-179 | ||
| 1.0mm sheet | 1200℃, 1hour annealing | HV (100g,15") | 170-181 |
| 1300℃, 1hour annealing | 170-183 | ||
| Ring | forge | HV (5kgs/30") | 150-169 |
| Mechanical properties of C103 alloy Tubing at room temperature | |||||
| Grade | Composition (mass fraction)% | Modulus of elasticity/MPa | Tensile strength/MPa | Yield strength/MPa | Elongation/% |
| C-103 | 10Hf-1Ti-0.7Zr | 112490 | 428.9 | 259.3 | 20 |
| Thermal conductivity of C103 alloy Pipe (W/(m·℃)) | ||
| Grade | 800℃ | 1200℃ |
| C-103 | 37.4 | 42.4 |
C-103 Niobium Alloy Tube packing & testing
C-103 Niobium Alloy Tube packing & testing


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