Aluminum 2A14
GB 2A14
2A14 (LD10) is a forging-grade Al-Cu-Si-Mg alloy of the 2000-series family, comparable to 2014 and supplied as die forgings, extrusions, bar and plate in O, H112, T4, T6, T62 and T651.
Reference datasheet — 2A14 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 T6 condition
2A14 tempers and conditions
2A14 is supplied in 6 conditions, soft to hard. T6 is the default FabDigit quotes; the values on this page are for it.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Softest condition for deep forming, straightening or re-machining before heat treatment. | 95 | 185 | 18 | 45 HB | 50 % IACS |
Strain hardened from hot working only | Commercial as-extruded/as-forged stock bought for subsequent solution treatment and ageing. | 160 | 280 | 12 | 75 HB | 45 % IACS |
Solution heat treated and naturally aged | Chosen when moderate strength with much better ductility for bending/riveting is needed before final ageing. | 255 | 420 | 18 | 105 HB | 34 % IACS |
T6, heat treated by the user | Same property target as T6 but heat treated after forming/machining of annealed or as-fabricated stock. | 395 | 470 | 10 | 132 HB | 40 % IACS |
T6Default Solution heat treated and artificially aged | Standard high-strength delivery condition for 2A14 forgings, extrusions and bar. | 400 | 480 | 10 | 135 HB | 40 % IACS |
T6, stress relieved by stretching | Pick for thick plate or bar that will be heavily machined and must stay dimensionally stable. | 415 | 470 | 9 | 135 HB | 40 % IACS |
What is 2A14?
2A14 (LD10) is a forging-grade Al-Cu-Si-Mg alloy of the 2000-series family, comparable to 2014 and supplied as die forgings, extrusions, bar and plate in O, H112, T4, T6, T62 and T651. It is chosen where forged aerospace fittings need 400 MPa yield, 480 MPa tensile, 10 % elongation and 135 HB after ageing, with 155 W/m·K conductivity and 40 % IACS. Fusion weldability is poor (25/100), formability in the aged condition is low (30/100) and the service ceiling is about 150 °C; 2014-T6 is the direct alternative. 2A14 has a density of 2.8 g/cm³ (0.101 lb/in³), heavier than 81% of aluminum grades. It melts at 507°C (945 °F). 2A14 has a yield strength of 400 MPa (58 ksi) and a tensile strength of 480 MPa (69.6 ksi) — stronger than 88% of aluminum grades. Elongation at break is 10% and the elastic modulus is 72 GPa (10.4 Msi).
What is 2A14 used for?
- Forged aircraft fittings
- Structural airframe forgings
- Extruded profiles and stringers
- Highly stressed machined brackets
- Die-forged levers and links
- High-strength bolt and stud blanks
Advantages
- High strength — 400 MPa (58 ksi), better than 88% of aluminum grades
Limitations
- Needs corrosion protection — 30/100, worse than 98% of aluminum grades
- Difficult to weld — 25/100, worse than 76% of aluminum grades
2A14 properties
Typical room-temperature values for 2A14-T6; bars are the position among aluminum grades.
Physical3
2A14 has a density of 2.8 g/cm³ (0.101 lb/in³), heavier than 81% of aluminum grades. It melts at 507°C (945 °F).
Mechanical14
2A14 has a yield strength of 400 MPa (58 ksi) and a tensile strength of 480 MPa (69.6 ksi) — stronger than 88% of aluminum grades. Elongation at break is 10% and the elastic modulus is 72 GPa (10.4 Msi).
Thermal6
2A14 is rated for continuous service to 150°C (302 °F). It conducts heat at 155 W/m·K (89.6 BTU/hr·ft·°F), better than 71% of aluminum grades. Thermal expansion is 22.5 µm/m·K (12.5 µin/in·°F).
Electrical3
2A14 conducts electricity at 40 % IACS, better than 72% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is poor (30/100), worse than 98% of aluminum grades.
Sustainability4
Producing a kilogram of 2A14 takes about 205 MJ of energy and emits 12.5 kg of CO₂ — more than 76% of aluminum grades. Typical recycled content is 10%.
Manufacturability8
2A14's machinability is very good (70/100, better than 72% of aluminum grades); weldability poor (25/100); formability poor (30/100).
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. 2A14 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 2A14
Is 2A14 easy to machine?
Machines well in T4/T6 with sharp carbide tooling, high speed and flood coolant; long chips in O temper, so age-harden before finish machining for best surface.
Can 2A14 be welded?
Fusion welding is not recommended (hot cracking, big HAZ strength loss); join by riveting, bolting or friction stir welding, and re-heat-treat plus age if arc welding is unavoidable.
Can 2A14 be formed, bent or molded?
Excellent hot workability at 420–470 °C for die forging and extrusion; cold form only in O or freshly quenched W/T4 condition, T6 parts should not be bent.
2A14 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 |
|---|---|---|
| Si | 0.6 – 1.2 | 0.9 |
| Cu | 3.9 – 4.8 | 4.3 |
| Mg | 0.4 – 0.8 | 0.6 |
| Mn | 0.4 – 1 | 0.7 |
| Feimpurity limit | ≤ 0.7 | |
| Znimpurity limit | ≤ 0.3 | |
| Niimpurity limit | ≤ 0.1 | |
| Tigrain refiner | ≤ 0.15 | |
| Others (each)total ≤ 0.10 | ≤ 0.05 | |
| Al | balance |
What surface finishes work on 2A14?
Use chromic or hard anodizing plus primer/topcoat, or Alclad/cladding, for corrosion protection; decorative bright anodizing gives a dull yellow tint because of the 4 % Cu.
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 2A14 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- GB (China)
- LD10
How much does 2A14 cost?
2A14 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.
2A14 — frequently asked
What is 2A14 used for?
2A14 is typically used for forged aircraft fittings, structural airframe forgings, extruded profiles and stringers, highly stressed machined brackets, die-forged levers and links and high-strength bolt and stud blanks. In short: forging-grade 2000-series alloy; highest strength in group; 2014-equivalent forgings.
What is the yield strength of 2A14?
2A14 has a typical yield strength of 400 MPa (58 ksi) and a tensile strength of 480 MPa (69.6 ksi) — stronger than 88% of aluminum grades. Strength varies by condition: see the 6 listed tempers.
Is 2A14 easy to machine?
Yes — machinability is rated very good (70/100, better than 72% of aluminum grades). Machines well in T4/T6 with sharp carbide tooling, high speed and flood coolant; long chips in O temper, so age-harden before finish machining for best surface.
Can 2A14 be welded?
Not readily — weldability is rated poor (25/100). Fusion welding is not recommended (hot cracking, big HAZ strength loss); join by riveting, bolting or friction stir welding, and re-heat-treat plus age if arc welding is unavoidable.
What surface finishes work on 2A14?
Use chromic or hard anodizing plus primer/topcoat, or Alclad/cladding, for corrosion protection; decorative bright anodizing gives a dull yellow tint because of the 4 % Cu.
Can 2A14 be formed, bent or molded?
Excellent hot workability at 420–470 °C for die forging and extrusion; cold form only in O or freshly quenched W/T4 condition, T6 parts should not be bent.
What is the maximum service temperature of 2A14?
2A14 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 2A14-T6 and 2A14-O?
T6 is the default condition — standard high-strength delivery condition for 2A14 forgings, extrusions and bar. O: softest condition for deep forming, straightening or re-machining before heat treatment. Yield strength is 400 MPa in T6 versus 95 MPa in O.
How much does 2A14 cost?
2A14 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
- ASM Handbook Vol.2: Properties and Selection — Nonferrous Alloys (AA2014 data) — ASM International (1990)
- Aluminum Association Teal Sheets — International Alloy Designations — The Aluminum Association (2018)
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.