ASTM B776 Hafnium and Hafnium Alloy Strip, Sheet, and Plate
- Type: Strip, Sheet, Plate
- Strip: Width≤150mm x Thickness 0.13-4.8mm x Coil
- Sheet: Width 150-1500mm x Thickness 0.13-4.8mm x Length 3000-18000mm
- Plate: Width 150 -3700mm x Thickness 4.8-250mm x Length 3000-18000mm
- Hot-Rolled, Cold-Rolled
ASTM B776 Hafnium and Hafnium Alloy Strip, Sheet, and Plate
Golden Sunbird Metals supplies premium ASTM B776 hafnium and hafnium alloy strip, sheet, and plate engineered for exceptional neutron absorption and superior corrosion resistance in the most demanding nuclear, aerospace, and high-temperature environments. Available in two grades—R1 (Nuclear Grade) for critical nuclear-service applications and R3 (Commercial Grade) for general industrial use—these products are offered in hot-rolled, cold-rolled, and annealed conditions with clean, smooth surface finishes ideal for fabrication. Dimensions include strip (width ≤150 mm, thickness 0.13–4.8 mm in coils), sheet (width 150–1500 mm, thickness 0.13–4.8 mm, length up to 18,000 mm), and plate (width 150–3700 mm, thickness 4.8–250 mm, length up to 18,000 mm). Perfect for nuclear reactor control rods, neutron-absorbing components, plasma cutting torches, aerospace gas-turbine parts, chemical processing reactors and heat exchangers, as well as electronic, vacuum, and getter applications, our ASTM B776 products deliver proven mechanical strength, thermal stability, and long service life. Supplied with EN 10204 Type 3.1 or 3.2 certification and full testing (chemical analysis, tensile, hardness, and NDT), GS Alloy provides reliable, high-performance hafnium strip, sheet, and plate solutions tailored to your exact specifications. Contact us today for a competitive quote and fast global delivery.
Chemical Composition (wt.%) of ASTM B776 Hafnium and Hafnium Alloy Strip, Sheet, and Plate
| Element | Grade R1 (Nuclear Grade) | Grade R3 (Commercial Grade) |
| Aluminum | 0.01% | 0.05% |
| Carbon | 0.02% | 0.03% |
| Chromium | 0.01% | 0.05% |
| Copper | 0.01% | – |
| Hydrogen | 0.00% | 0.01% |
| Iron | 0.05% | 0.08% |
| Molybdenum | 0.00% | – |
| Nickel | 0.01% | – |
| Niobium | 0.01% | – |
| Nitrogen | 0.01% | 0.02% |
| Oxygen | 0.04% | 0.13% |
| Silicon | 0.01% | 0.05% |
| Tantalum | 0.02% | – |
| Tin | 0.01% | – |
| Titanium | 0.01% | 0.05% |
| Tungsten | 0.02% | 0.02% |
| Uranium | 0.00% | – |
| Vanadium | 0.01% | – |
| Zirconium | Reportable | Reportable |
| Hafnium | Balance | Balance |
Mechanical Properties (Grade R1) of ASTM B776 Hafnium and Hafnium Alloy Strip, Sheet, and Plate
| Sample Direction | Condition | Test Temperature | Tensile Strength (min) | Yield Strength (min) | Elongation (min) |
| Longitudinal | Annealed | Room Temperature | 58 ksi (400 MPa) | 22 ksi (151 MPa) | 20% |
| Longitudinal | Annealed | 600°F (315°C) | 25 ksi (172 MPa) | 11 ksi (76 MPa) | 25% |
| Transverse | Annealed | Room Temperature | 45 ksi (310 MPa) | 25 ksi (172 MPa) | 20% |
| Transverse | Annealed | 600°F (315°C) | 23 ksi (158 MPa) | 14 ksi (96 MPa) | 30% |
Note: Mechanical properties for Grade R3 are specified according to the purchase order and, therefore, not listed here.
Features
- ASTM B776 hafnium and hafnium alloy strip, sheet, and plate in two grades: R1 for nuclear applications and R3 for commercial applications.
- Available in strip, sheet, and plate forms with hot-rolled or cold-rolled manufacturing options.
- Grade R1 chemical composition and mechanical properties are specified for nuclear-service performance.
- Grade R3 is available for commercial service with composition limits defined by the standard.
- Clean, smooth surface finish with controlled dimensions for fabrication and further processing.
- Supplied with inspection certificate options and testing support for quality-critical projects.
Technical Specifications
| Specification | Value |
| Standard | ASTM B776 Hafnium and Hafnium Alloy Strip, Sheet, and Plate |
| Grade | R1, R3 |
| Finish | Clean, smooth surface finish |
| Type | Strip, Sheet, Plate |
| Size | Strip: Width≤150mm x Thickness 0.13-4.8mm x Coil Sheet: Width 150-1500mm x Thickness 0.13-4.8mm x Length 3000-18000mm Plate: Width 150 -3700mm x Thickness 4.8-250mm x Length 3000-18000mm |
| Manufacturing process | Hot-Rolled & Annealed, Cold-Rolled & Annealed |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Test | Chemical Analysis, Tensile Test, Hardness Test, Nondestructive Testing (NDT) |
Applications
- Nuclear reactor control rods and neutron-absorbing components.
- Safety devices and critical components in nuclear facilities.
- Plasma cutting equipment and plasma torch parts.
- High-temperature aerospace and gas-turbine related components.
- Chemical processing equipment such as reactors and heat exchangers.
- Electronic, vacuum, heat-sink, and getter applications where thermal stability and corrosion resistance are important.
