Cb-752 Nb10W2.5Zr Niobium-Tungsten Alloy Bar, Wire and Plate
- Type: Bar, Wire, and Plate
- Niobium-Tungsten Alloy
- Grade: Cb-752, Nb10W2.5Zr
Cb-752 Nb10W2.5Zr Niobium-Tungsten Alloy Bar, Wire, and Plate
Cb-752 Nb10W2.5Zr niobium-tungsten alloy bar, wire, and plate are high-performance refractory materials engineered for extreme service conditions where strength, heat resistance, and dimensional stability are critical. With a niobium-based composition enhanced by tungsten and zirconium, this alloy delivers excellent high-temperature performance, good creep resistance, and dependable mechanical integrity in demanding environments. Available in bar, wire, and plate forms, Cb-752 Nb10W2.5Zr is well suited for aerospace, advanced furnace systems, vacuum equipment, and other specialized applications that require durability, precision, and long-term reliability.
Cb-752 Nb10W2.5Zr Niobium-Tungsten Alloy Bar, Wire and Plate Chemical Composition (wt.%)
| Elements | Value |
| Carbon, C | 0.015% max. |
| Hydrogen, H | 0.0010% max. |
| Niobium, Nb (Columbium, Cb) | 87.50% |
| Nitrogen, N | 0.010% max. |
| Oxygen, O | 0.020% max. |
| Tungsten, W | 9.0 – 11.0% |
| Zirconium, Zr | 2.0 – 3.0 % |
Cb-752 Nb10W2.5Zr Niobium-Tungsten Alloy Bar, Wire and Plate Mechanical Properties
|
Alloy Grade |
Test Temperature (℃) |
Tensile Strength (MPa) |
Yield Strength (MPa) |
Elongation (%) |
|
Nb-10W-2.5Zr (Cb-752) |
Room Temperature |
514.5 |
411.6 |
31 |
|
1093 |
271.5 |
221.4 |
45.7 |
|
|
1371 |
121.5 |
113.7 |
>70 |
|
|
1645 |
53.8 |
53.8 |
>45 |
| Properties | Value |
| Melting Point | 2425℃ |
| Density | 9.03 g/cm3 |
Features
- Cb-752 / Nb10W2.5Zr niobium-tungsten-zirconium alloy available in bar, wire, foil, sheet, strip, and plate forms.
- Designed for high-temperature service with excellent strength and creep resistance in aerospace environments.
- High melting-point refractory alloy suitable for hot-zone structural parts and precision fabricated components.
- Available in multiple product forms to support machining, forming, and custom processing requirements.
- Supplied with inspection certificate options and standard quality testing for critical applications.
Technical Specifications
| Specification | Value |
| Standard | Niobium-Tungsten Alloy Cb-752/Nb10W2.5Zr Bar Wire Plate |
| Grade | Cb-752, Nb10W2.5Zr |
| Type | Bar, Wire, Foil, Plate, Sheet, Strip |
| Dimension | Round Bar & Wire Diameter: 1 – 200mm Foil Width:≤150mm x Thickness:≤0.13mm Plate Width:≥150mm x Thickness:≥4.8mm Sheet Width:≥150mm x Thickness: 0.13-4.8mm Strip Width:≤150mm x Thickness:0.13-4.8mm |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Tests | Chemical analysis, Tensile test, Intergranular corrosion test, Flatness %=(H/L) x 100, Metallographic examination |
Applications
- Space propulsion components, including rocket nozzles, thrust chambers, and other hot-section parts.
- High-temperature aerospace structural components for re-entry and propulsion systems.
- Prototype and development parts for advanced niobium-alloy aerospace programs.
- Thin-section fabricated parts that require low weight, high strength, and creep resistance at elevated temperature.
- Coated refractory-metal components for severe thermal environments.
