Aluminum 2A10-T6
Temper
GB 2A10
T6 = solution heat treated and artificially aged
Choose when maximum yield strength and dimensional stability are needed on machined parts rather than driveable rivets.
Values for the T6 condition
Other 2A10 tempers and conditions
2A10 is listed in 4 conditions; see the grade overview at 2A10.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Softest condition for wire drawing, heading and severe cold forming before heat treatment. | 80 | 185 | 24 | 45 HB | 45 % IACS |
Strain hardened from hot working only | As-extruded/as-drawn stock bought for subsequent solution treatment by the fastener maker. | 130 | 250 | 16 | 65 HB | 40 % IACS |
T4Default Solution heat treated and naturally aged | Standard supply condition for 2A10 rivet wire and rod: high shear strength with retained driveability after quenching (or after refrigeration). | 245 | 390 | 18 | 100 HB | 30 % IACS |
T6This page Solution heat treated and artificially aged | Choose when maximum yield strength and dimensional stability are needed on machined parts rather than driveable rivets. | 340 | 420 | 10 | 118 HB | 35 % IACS |
What is 2A10-T6?
2A10-T6 is 2A10 in the T6 temper — choose when maximum yield strength and dimensional stability are needed on machined parts rather than driveable rivets. 2A10-T6 has a yield strength of 340 MPa (49.3 ksi) and a tensile strength of 420 MPa (60.9 ksi) — stronger than 82% of aluminum grades. Elongation at break is 10% and the elastic modulus is 72 GPa (10.4 Msi). 2A10-T6 has a density of 2.8 g/cm³ (0.101 lb/in³), heavier than 81% of aluminum grades. It melts at 512°C (954 °F). T4 is the default condition FabDigit quotes; T6 is available on request or by drawing note.
Advantages
- Easy to machine — 75/100, better than 86% of aluminum grades
- High strength — 340 MPa (49.3 ksi), better than 82% of aluminum grades
- Tough — resists crack growth — 30 MPa·√m (27.3 ksi·√in), better than 76% of aluminum grades
Limitations
- Difficult to weld — 18/100, worse than 94% of aluminum grades
- Needs corrosion protection — 36/100, worse than 81% of aluminum grades
2A10-T6 properties
Typical room-temperature values for 2A10-T6; 14 are specific to this condition. Other listed values are 2A10 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
2A10-T6 has a density of 2.8 g/cm³ (0.101 lb/in³), heavier than 81% of aluminum grades. It melts at 512°C (954 °F).
Mechanical12
2A10-T6 has a yield strength of 340 MPa (49.3 ksi) and a tensile strength of 420 MPa (60.9 ksi) — stronger than 82% of aluminum grades. Elongation at break is 10% and the elastic modulus is 72 GPa (10.4 Msi).
Thermal6
2A10-T6 is rated for continuous service to 150°C (302 °F). It conducts heat at 145 W/m·K (83.8 BTU/hr·ft·°F), better than 53% of aluminum grades. Thermal expansion is 22.9 µm/m·K (12.7 µin/in·°F).
Electrical3
2A10-T6 conducts electricity at 35 % IACS, better than 52% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (36/100), worse than 81% of aluminum grades.
Sustainability4
Producing a kilogram of 2A10-T6 takes about 205 MJ of energy and emits 12.5 kg of CO₂ — more than 76% of aluminum grades. Typical recycled content is 10%.
Manufacturability6
2A10-T6's machinability is very good (75/100, better than 86% of aluminum grades); weldability poor (18/100); formability poor (25/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 2A10-T6
Is 2A10 easy to machine?
Machines cleanly in T4/T6 with sharp carbide tools, high speed and flood coolant; chips break better than in O temper.
Can 2A10 be welded?
Not suited to fusion welding (hot cracking, loss of temper) — join by riveting, bolting or adhesive; resistance spot welding possible with qualified schedules.
Can 2A10 be formed, bent or molded?
Head and upset rivets in the freshly quenched (or refrigerated) T4 state; anneal to O for heavy cold drawing/bending, then re-solution treat.
What surface finishes work on 2A10?
Chromic or sulfuric anodize plus primer/chromate conversion for corrosion protection; bare Cu-rich surface must not be left unprotected in marine service.
2A10 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 |
|---|---|---|
| Cu | 3.9 – 4.5 | 4.2 |
| Mn | 0.3 – 0.5 | 0.4 |
| Mglow Mg keeps rivets driveable after quench | 0.15 – 0.3 | 0.22 |
| Siimpurity | ≤ 0.25 | — |
| Feimpurity | ≤ 0.2 | — |
| Znimpurity | ≤ 0.1 | — |
| Tigrain refiner | ≤ 0.15 | — |
| Niimpurity | ≤ 0.1 | — |
| Others (each)total 0.15 max | ≤ 0.05 | — |
| Al | balance | — |
2A10-T6 — frequently asked
What is 2A10-T6 used for?
2A10-T6 is typically used for aircraft solid rivets, rivet and fastener wire stock, riveted airframe joints, cold-headed pins and studs, screw-machine fastener bar and structural assembly hardware. In short: dedicated aircraft rivet alloy; 18 % elongation rivet stock; cold-headable in T4.
What is the yield strength of 2A10-T6?
2A10-T6 has a typical yield strength of 340 MPa (49.3 ksi) and a tensile strength of 420 MPa (60.9 ksi) — stronger than 82% of aluminum grades. Strength varies by condition: see the 4 listed tempers.
Is 2A10-T6 easy to machine?
Yes — machinability is rated very good (75/100, better than 86% of aluminum grades). Machines cleanly in T4/T6 with sharp carbide tools, high speed and flood coolant; chips break better than in O temper.
Can 2A10-T6 be welded?
Not readily — weldability is rated poor (18/100). Not suited to fusion welding (hot cracking, loss of temper) — join by riveting, bolting or adhesive; resistance spot welding possible with qualified schedules.
What surface finishes work on 2A10-T6?
Chromic or sulfuric anodize plus primer/chromate conversion for corrosion protection; bare Cu-rich surface must not be left unprotected in marine service.
Can 2A10-T6 be formed, bent or molded?
Head and upset rivets in the freshly quenched (or refrigerated) T4 state; anneal to O for heavy cold drawing/bending, then re-solution treat.
What is the maximum service temperature of 2A10-T6?
2A10-T6 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 2A10-T4 and 2A10-O?
T4 is the default condition — standard supply condition for 2A10 rivet wire and rod: high shear strength with retained driveability after quenching (or after refrigeration). O: softest condition for wire drawing, heading and severe cold forming before heat treatment. Yield strength is 245 MPa in T4 versus 80 MPa in O.
Sources
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials — ASM International (2005)
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.