Refractory Metal AlBeMet AM200-ANN (Annealed)
Heat-treated state
Use after rough machining of precision optical or metrology parts to remove residual stress and maximise dimensional stability.
Values for the ANN condition
Other AlBeMet AM200 tempers and conditions
AlBeMet AM200 is listed in 2 conditions; see the grade overview at AlBeMet AM200.
- ANN
- HIP
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
ANNThis page Annealed | Use after rough machining of precision optical or metrology parts to remove residual stress and maximise dimensional stability. | 180 | 260 | 4 | 92 HB | 43 % IACS |
HIPDefault Hot isostatic pressed | Standard stocked form: isotropic consolidated block/billet for machined brackets, housings and optical benches. | 200 | 275 | 3 | 100 HB | 42 % IACS |
What is AlBeMet AM200-ANN?
AlBeMet AM200-ANN is AlBeMet AM200 heat treated to ANN — use after rough machining of precision optical or metrology parts to remove residual stress and maximise dimensional stability. AlBeMet AM200-ANN has a yield strength of 180 MPa (26.1 ksi) and a tensile strength of 260 MPa (37.7 ksi) — weaker than 91% of refractory metal grades. Elongation at break is 4% and the elastic modulus is 188 GPa (27.3 Msi). AlBeMet AM200-ANN has a density of 2.13 g/cm³ (0.077 lb/in³), lighter than 90% of refractory metal grades. It melts at 645°C (1,193 °F). HIP is the default condition FabDigit quotes; ANN is available on request or by drawing note.
Advantages
- High electrical conductivity — 43 % IACS, better than 101% of refractory metal grades
- Conducts heat well — 215 W/m·K (124.2 BTU/hr·ft·°F), better than 99% of refractory metal grades
- Easy to machine — 40/100, better than 93% of refractory metal grades
- Lightweight — 2.13 g/cm³ (0.077 lb/in³), better than 90% of refractory metal grades
Limitations
- Limited service temperature — 250°C (482 °F), worse than 100% of refractory metal grades
- Hard to polish — 45/100, worse than 98% of refractory metal grades
- Low strength — 180 MPa (26.1 ksi), worse than 91% of refractory metal grades
- Needs corrosion protection — 45/100, worse than 86% of refractory metal grades
- Limited ductility — 4%, worse than 84% of refractory metal grades
AlBeMet AM200-ANN properties
Typical room-temperature values for AlBeMet AM200-ANN; 22 are specific to this condition. Other listed values are AlBeMet AM200 reference data and may not represent this condition. Bars are the position among refractory metal grades.
Physical3
AlBeMet AM200-ANN has a density of 2.13 g/cm³ (0.077 lb/in³), lighter than 90% of refractory metal grades. It melts at 645°C (1,193 °F).
Mechanical16
AlBeMet AM200-ANN has a yield strength of 180 MPa (26.1 ksi) and a tensile strength of 260 MPa (37.7 ksi) — weaker than 91% of refractory metal grades. Elongation at break is 4% and the elastic modulus is 188 GPa (27.3 Msi).
Thermal5
AlBeMet AM200-ANN is rated for continuous service to 250°C (482 °F). It conducts heat at 215 W/m·K (124.2 BTU/hr·ft·°F), better than 99% of refractory metal grades. Thermal expansion is 14.5 µm/m·K (8.06 µin/in·°F).
Electrical3
AlBeMet AM200-ANN conducts electricity at 43 % IACS, better than 101% of refractory metal grades.
Chemical & Environmental3
Corrosion resistance is fair (45/100), worse than 86% of refractory metal grades.
Sustainability3
Producing a kilogram of AlBeMet AM200-ANN takes about 900 MJ of energy and emits 60 kg of CO₂ — less than 59% of refractory metal grades. Typical recycled content is 10%.
Manufacturability7
AlBeMet AM200-ANN's machinability is fair (40/100, better than 93% of refractory metal grades); weldability poor (22/100); formability poor (18/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with AlBeMet AM200-ANN
Is AlBeMet AM200 easy to machine?
Machine wet with sharp PCD/carbide tooling at moderate speeds; all beryllium-bearing swarf and dust must be captured (HEPA/wet collection) under OSHA/EU beryllium exposure controls, and machined surfaces are usually etched to remove damaged layer.
Can AlBeMet AM200 be welded?
Fusion welding is not recommended (hot cracking of the Be phase); joints are made by electron-beam/laser welding with qualified procedures, aluminium-silicon brazing, or mechanical fastening and bonding.
Can AlBeMet AM200 be formed, bent or molded?
Essentially non-formable cold; bending and stretching require warm working around 200–400 °C, and near-net HIP shapes plus machining are the normal route.
What surface finishes work on AlBeMet AM200?
Chromate conversion, electroless nickel plate (for polished/optical surfaces) or primer-paint are standard; anodizing gives a patchy film because the beryllium phase does not oxidise uniformly.
AlBeMet AM200 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Benominal beryllium content of the AM200 variant; differs from AlBeMet AM162 (62 % Be) — verify against the current producer certificate | 58 – 62 | 60 |
| BeOoxide from atomised powder | ≤ 1 | 0.5 |
| Fe | ≤ 0.1 | 0.05 |
| Si | ≤ 0.08 | 0.04 |
| Other, each | ≤ 0.1 | — |
| Almatrix phase, approx. 40 % | balance | — |
AlBeMet AM200-ANN — frequently asked
What is AlBeMet AM200-ANN used for?
AlBeMet AM200-ANN is typically used for aerospace structural components, satellite frames and high-stiffness lightweight brackets. In short: al-Be structural alloy; high stiffness-to-weight; extrudable Be-bearing alloy.
What is the yield strength of AlBeMet AM200-ANN?
AlBeMet AM200-ANN has a typical yield strength of 180 MPa (26.1 ksi) and a tensile strength of 260 MPa (37.7 ksi) — weaker than 91% of refractory metal grades. Strength varies by condition: see the 2 listed tempers.
Is AlBeMet AM200-ANN easy to machine?
Not especially — machinability is rated fair (40/100, better than 93% of refractory metal grades). Machine wet with sharp PCD/carbide tooling at moderate speeds; all beryllium-bearing swarf and dust must be captured (HEPA/wet collection) under OSHA/EU beryllium exposure controls, and machined surfaces are usually etched to remove damaged layer.
Can AlBeMet AM200-ANN be welded?
Not readily — weldability is rated poor (22/100). Fusion welding is not recommended (hot cracking of the Be phase); joints are made by electron-beam/laser welding with qualified procedures, aluminium-silicon brazing, or mechanical fastening and bonding.
What surface finishes work on AlBeMet AM200-ANN?
Chromate conversion, electroless nickel plate (for polished/optical surfaces) or primer-paint are standard; anodizing gives a patchy film because the beryllium phase does not oxidise uniformly.
Can AlBeMet AM200-ANN be formed, bent or molded?
Essentially non-formable cold; bending and stretching require warm working around 200–400 °C, and near-net HIP shapes plus machining are the normal route.
What is the maximum service temperature of AlBeMet AM200-ANN?
AlBeMet AM200-ANN is rated for continuous use to about 250°C (482 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between AlBeMet AM200-HIP and AlBeMet AM200-ANN?
HIP is the default condition — standard stocked form: isotropic consolidated block/billet for machined brackets, housings and optical benches. ANN: use after rough machining of precision optical or metrology parts to remove residual stress and maximise dimensional stability. Yield strength is 200 MPa in HIP versus 180 MPa in ANN.
Sources
- AlBeMet beryllium-aluminium alloy product literature — Materion (Brush Wellman) (2021)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials (beryllium alloys) — ASM International (1990)
- ASM Handbook Vol. 3 — Alloy Phase Diagrams (Al-Be system) — ASM International (2016)
- MatWeb entries for AlBeMet Be-Al P/M alloys — MatWeb LLC (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.