MH Niobium Alloy Nb-752 (Nb-10W-2.5Zr, UNS R04271) Overview
Nb-752 is a high-performance niobium-based alloy developed to provide an excellent balance of high-temperature strength, ductility, and long-term stability. Through controlled alloying and advanced melting technology, Nb-752 offers reliable performance in extreme thermal and mechanical environments, making it suitable for critical aerospace, defense, and high-temperature industrial applications.
MH Niobium Alloy Nb-752 Available Forms and Supply Conditions
Product Forms
○ Sheet / Plate
○ Rod / Bar
○ Tube / Pipe
○ Custom Machined Components
Supply Conditions
○ Annealed
○ Stress-relieved
○ Customized heat treatment upon request
Standards
○ ASTM / AMS or customer-specified requirements
MH Niobium Alloy Nb-752 Chemical Nature
|
Grade |
Composition |
Element (mass fraction) % |
||||||
|
W |
Hf |
Ta |
Y |
Ti |
Zr |
Nb |
||
|
Nb-752 (Cb752) |
Nb-10% W-2.5% Zr |
9-11 |
0.2 |
0.5 |
|
- |
2.0-3.0 |
balance |
|
Grade |
Composition |
Interstitial impurity (mass fraction) |
Tensile strength |
Yield strength |
Elongation |
|||
|
C |
O |
N |
H |
|||||
|
Nb-752 (Cb752) |
Nb-10% W-2.5% Zr |
150X10-6 |
225X10-6 |
100X10-6 |
15X10-6 |
386.6MPa |
572.2MPa |
20% |
Follow AMS 7855/ASTM B393 etc. Customized products may contain trace amounts of elements such as molybdenum (Mo), tantalum (Ta), and hafnium (Hf) to fine-tune performance.
MH Niobium Alloy Nb-752 Compared To C-103 Alloy (1500℃)
|
Nb521 |
C-103 |
Advantage |
|
|
Tensile strength |
~ 157MPa |
~ 50MPa |
Strength increased by 3 times+ |
|
Creep rate |
0.04%/h |
4.82%/h |
T~ 100 times that of C-103 |
|
Applicable temperature |
≤1550℃ |
≤1400℃ |
Operating temperature increased by 150℃+ |
MH Niobium Alloy Nb752 Applications
Aerospace
Liquid rocket engine thrust chambers, nozzle assemblies, spacecraft attitude control thrusters.
Energy and Industry
Radiation-resistant components for nuclear reactors, high-temperature furnace heating elements, high-end molds, etc.
MH Niobium Alloy Nb752 Machining and Usage
Machining
Due to its high hardness and strong sticking tendency, carbide or PCD tools are required. Strict control of cutting parameters is essential to minimize deformation and tool wear.
Welding
Suitable for electron beam welding and TIG welding. Surface oxide film must be removed before welding, and stress relief treatment should be performed after welding.
Manufacturing & Quality Control
Vacuum melting and controlled alloy processing
Thermomechanical processing with intermediate heat treatment
Strict control of oxygen and interstitial elements
Full chemical analysis and mechanical testing
Complete material traceability and certification
Why Choose MH Nb-752 Alloy
● Aerospace and defense manufacturing background
● Long-term in-house application experience
● Stable quality for critical and safety-related components
● Flexible size range and custom specifications
● Integrated material supply and precision machining capability
We do not only supply materials - we use them in our own critical systems, ensuring a deeper understanding of real engineering requirements.
Custom Manufacturing
We offer custom niobium solutions, including:
● Non-standard dimensions
● Tight tolerance control
● Special surface finishes
● Application-specific technical requirements
Please provide drawings or detailed specifications for evaluation.
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