Aluminum A206.0
AA A206.0 · UNS A12060
A206.0 is a high-strength Al-Cu sand and permanent-mold casting alloy (ANSI/AA 2xx.x series, UNS A12060) available in F, T4, T6, T7 and T71 tempers, with 264 MPa yield, 430 MPa tensile, 17% elongation and 95 HB in the default condition.
Reference datasheet — A206.0 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the T4 condition
A206.0 tempers and conditions
A206.0 is supplied in 5 conditions, soft to hard. T4 is the default FabDigit quotes; the values on this page are for it.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
As fabricated | Raw casting condition, used only as an intermediate before solution treatment; strength and ductility are low. | 110 | 195 | 6 | 55 HB | 38 % IACS |
T4Default Solution heat treated and naturally aged | Pick for maximum ductility and fracture toughness with high strength — the standard condition for structural aerospace and armament castings. | 264 | 430 | 17 | 95 HB | 33 % IACS |
Solution heat treated and overaged (stabilized) | Pick for the highest yield strength combined with dimensional stability and improved resistance to stress-corrosion cracking. | 345 | 435 | 11.7 | 115 HB | 39 % IACS |
Solution heat treated and fully overaged for maximum stability | Pick when long-term dimensional stability, elevated-temperature service and best SCC resistance outweigh a modest strength loss versus T7. | 345 | 415 | 12 | 110 HB | 40 % IACS |
Solution heat treated and artificially aged | Occasionally specified where peak yield strength matters more than toughness and SCC risk is controlled. | 350 | 440 | 7 | 120 HB | 36 % IACS |
What is A206.0?
A206.0 is a high-strength Al-Cu sand and permanent-mold casting alloy (ANSI/AA 2xx.x series, UNS A12060) available in F, T4, T6, T7 and T71 tempers, with 264 MPa yield, 430 MPa tensile, 17% elongation and 95 HB in the default condition. Engineers choose it where cast parts must carry structural loads with good ductility and fracture toughness at room and elevated temperature. Copper content makes it crack-sensitive in welding and weak in corrosion (30/100), service is limited to 150 °C, and solution treatment needs close furnace control; A201.0 gives higher strength, 356.0-type alloys give easier casting. A206.0 has a density of 2.8 g/cm³ (0.101 lb/in³), heavier than 81% of aluminum grades. It melts at 570°C (1,058 °F). A206.0 has a yield strength of 264 MPa (38.3 ksi) and a tensile strength of 430 MPa (62.4 ksi) — stronger than 68% of aluminum grades. Elongation at break is 17% and the elastic modulus is 71 GPa (10.3 Msi).
What is A206.0 used for?
- aerospace structural parts
- automotive suspension components
- high-strength machinery parts
- military castings
Advantages
- Tough — resists crack growth — 36 MPa·√m (32.8 ksi·√in), better than 93% of aluminum grades
- Easy to machine — 78/100, better than 89% of aluminum grades
- Ductile — tolerates forming and impact — 17%, better than 85% of aluminum grades
Limitations
- Needs corrosion protection — 30/100, worse than 98% of aluminum grades
- Limited formability — 10/100, worse than 80% of aluminum grades
- Poor heat conductor — 121 W/m·K (69.9 BTU/hr·ft·°F), worse than 76% of aluminum grades
A206.0 properties
Typical room-temperature values for A206.0-T4; bars are the position among aluminum grades.
Physical3
A206.0 has a density of 2.8 g/cm³ (0.101 lb/in³), heavier than 81% of aluminum grades. It melts at 570°C (1,058 °F).
Mechanical13
A206.0 has a yield strength of 264 MPa (38.3 ksi) and a tensile strength of 430 MPa (62.4 ksi) — stronger than 68% of aluminum grades. Elongation at break is 17% and the elastic modulus is 71 GPa (10.3 Msi).
Thermal6
A206.0 is rated for continuous service to 150°C (302 °F). It conducts heat at 121 W/m·K (69.9 BTU/hr·ft·°F), worse than 76% of aluminum grades. Thermal expansion is 22.5 µm/m·K (12.5 µin/in·°F).
Electrical3
A206.0 conducts electricity at 33 % IACS, worse than 57% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is poor (30/100), worse than 98% of aluminum grades.
Sustainability4
Producing a kilogram of A206.0 takes about 200 MJ of energy and emits 12.5 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 15%.
Manufacturability8
A206.0's machinability is very good (78/100, better than 89% of aluminum grades); weldability poor (30/100); formability not recommended (10/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the aluminum family
Yield strength against density for every aluminum grade FabDigit runs. A206.0 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with A206.0
Is A206.0 easy to machine?
Machines very well in T4/T7 with sharp carbide or PCD tools, high speeds and flood coolant; chips are continuous so use polished flutes and chip-breaking geometry.
Can A206.0 be welded?
Crack-sensitive Al-Cu chemistry — GTAW repair only with matching 206-type or 2319 filler, tight preheat/interpass control, and re-solution + re-age afterwards; not recommended for structural joints.
Can A206.0 be formed, bent or molded?
Sand and permanent-mold casting only; needs chills, generous risers, tight thermal-gradient control and low-turbulence gating to avoid hot tearing and shrink porosity; solution treatment near 525–530 °C requires close furnace control to avoid incipient melting.
A206.0 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 |
|---|---|---|
| SiA206.0 tightened vs 206.0 (0.10) | ≤ 0.05 | 0.03 |
| Felow Fe essential for toughness | ≤ 0.1 | 0.06 |
| Cu | 4.2 – 5 | 4.6 |
| Mn | 0.2 – 0.5 | 0.35 |
| Mg | 0.15 – 0.35 | 0.25 |
| Ni | ≤ 0.05 | |
| Zn | ≤ 0.1 | |
| Tigrain refinement | 0.15 – 0.3 | 0.22 |
| Sn | ≤ 0.05 | |
| Others (each)total 0.15 max | ≤ 0.05 | |
| Al | balance |
What surface finishes work on A206.0?
Anodizing gives dull, less protective films because of the high copper — specify chromate conversion plus epoxy primer/paint, or nickel/cadmium plating, for corrosion protection; shot peening improves fatigue and SCC resistance.
Surface treatments FabDigit runs on aluminum parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Organic Coating
Equivalent designations
Standards and trade names that resolve to Aluminum A206.0 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- A12060
How much does A206.0 cost?
A206.0 is a premium-cost aluminum ($$$), cheaper than about 51% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
A206.0 — frequently asked
What is A206.0 used for?
A206.0 is typically used for aerospace structural parts, automotive suspension components, high-strength machinery parts and military castings. In short: high-toughness Al-Cu casting; ductile structural cast alloy; poor corrosion resistance.
What is the yield strength of A206.0?
A206.0 has a typical yield strength of 264 MPa (38.3 ksi) and a tensile strength of 430 MPa (62.4 ksi) — stronger than 68% of aluminum grades. Strength varies by condition: see the 5 listed tempers.
Is A206.0 easy to machine?
Yes — machinability is rated very good (78/100, better than 89% of aluminum grades). Machines very well in T4/T7 with sharp carbide or PCD tools, high speeds and flood coolant; chips are continuous so use polished flutes and chip-breaking geometry.
Can A206.0 be welded?
Not readily — weldability is rated poor (30/100). Crack-sensitive Al-Cu chemistry — GTAW repair only with matching 206-type or 2319 filler, tight preheat/interpass control, and re-solution + re-age afterwards; not recommended for structural joints.
What surface finishes work on A206.0?
Anodizing gives dull, less protective films because of the high copper — specify chromate conversion plus epoxy primer/paint, or nickel/cadmium plating, for corrosion protection; shot peening improves fatigue and SCC resistance.
Can A206.0 be formed, bent or molded?
Sand and permanent-mold casting only; needs chills, generous risers, tight thermal-gradient control and low-turbulence gating to avoid hot tearing and shrink porosity; solution treatment near 525–530 °C requires close furnace control to avoid incipient melting.
What is the maximum service temperature of A206.0?
A206.0 is rated for continuous use to about 150°C (302 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between A206.0-T4 and A206.0-F?
T4 is the default condition — pick for maximum ductility and fracture toughness with high strength — the standard condition for structural aerospace and armament castings. F: raw casting condition, used only as an intermediate before solution treatment; strength and ductility are low. Yield strength is 264 MPa in T4 versus 110 MPa in F.
How much does A206.0 cost?
A206.0 is a premium-cost aluminum ($$$), cheaper than about 51% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- ASTM B26/B26M — Aluminum-Alloy Sand Castings — ASTM International (2018)
- ASTM B108/B108M — Aluminum-Alloy Permanent Mold Castings — ASTM International (2019)
- Registration Record of Aluminum Association Alloy Designations and Chemical Composition Limits for Aluminum Alloys in the Form of Castings and Ingot ('Pink Sheets') — The Aluminum Association (2018)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- ASM Specialty Handbook: Aluminum and Aluminum Alloys — ASM International (1993)
- AFS/NADCA foundry alloy property compilations for 206 alloys — American Foundry Society (2019)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.