Aluminum 6009-T62
Temper
AA 6009 · UNS A96009
T62 = t6, heat treated by the user
Reference condition used to report the fully hardened property level of formed 6009 parts after user heat treatment.
Values for the T62 condition
Other 6009 tempers and conditions
6009 is listed in 6 conditions; see the grade overview at 6009.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Softest, maximum drawability; used for severe forming or as an intermediate condition before solution treatment. | 76 | 152 | 30 | 38 HB | 50 % IACS |
T4Default Solution heat treated and naturally aged | Standard as-delivered automotive sheet condition: formable enough for stamping, then strengthened by the paint-bake cycle. | 131 | 234 | 25 | 62 HB | 44 % IACS |
T4 stamped and paint-bake hardened | In-service condition of a finished body panel: 2 % prestrain plus paint bake raises yield strength by roughly 60–80 MPa over T4. | 205 | 265 | 18 | 78 HB | 45 % IACS |
Solution heat treated and artificially aged | Peak-aged condition for parts that need maximum strength and do not require further forming. | 234 | 262 | 12 | 85 HB | 47 % IACS |
T62This page T6, heat treated by the user | Reference condition used to report the fully hardened property level of formed 6009 parts after user heat treatment. | 234 | 262 | 11 | 85 HB | 47 % IACS |
Solution heat treated, cold worked and artificially aged | Prestrain-plus-age route (essentially a strong bake response) when the highest strength from stamped 6009 is required. | 255 | 285 | 10 | 92 HB | 45 % IACS |
What is 6009-T62?
6009-T62 is 6009 in the T62 temper — reference condition used to report the fully hardened property level of formed 6009 parts after user heat treatment. 6009-T62 has a yield strength of 234 MPa (33.9 ksi) and a tensile strength of 262 MPa (38 ksi) — stronger than 61% of aluminum grades. Elongation at break is 11% and the elastic modulus is 69 GPa (10 Msi). 6009-T62 has a density of 2.71 g/cm³ (0.0979 lb/in³), heavier than 51% of aluminum grades. It melts at 560°C (1,040 °F). T4 is the default condition FabDigit quotes; T62 is available on request or by drawing note.
Advantages
- High electrical conductivity — 47 % IACS, better than 88% of aluminum grades
- Conducts heat well — 180 W/m·K (104 BTU/hr·ft·°F), better than 86% of aluminum grades
6009-T62 properties
Typical room-temperature values for 6009-T62; 22 are specific to this condition. Other listed values are 6009 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
6009-T62 has a density of 2.71 g/cm³ (0.0979 lb/in³), heavier than 51% of aluminum grades. It melts at 560°C (1,040 °F).
Mechanical12
6009-T62 has a yield strength of 234 MPa (33.9 ksi) and a tensile strength of 262 MPa (38 ksi) — stronger than 61% of aluminum grades. Elongation at break is 11% and the elastic modulus is 69 GPa (10 Msi).
Thermal6
6009-T62 is rated for continuous service to 150°C (302 °F). It conducts heat at 180 W/m·K (104 BTU/hr·ft·°F), better than 86% of aluminum grades. Thermal expansion is 23.4 µm/m·K (13 µin/in·°F).
Electrical3
6009-T62 conducts electricity at 47 % IACS, better than 88% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is good (55/100), worse than 51% of aluminum grades.
Sustainability4
Producing a kilogram of 6009-T62 takes about 200 MJ of energy and emits 12 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 25%.
Manufacturability7
6009-T62's machinability is good (58/100, worse than 54% of aluminum grades); weldability good (66/100); formability fair (45/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 6009-T62
Is 6009 easy to machine?
Machines easily in T6/T62 with polished-flute carbide and good chip evacuation; T4 sheet is gummy and needs sharp tools, high speed and lubricant.
Can 6009 be welded?
Excellent for resistance spot, laser and MIG welding of body panels; use 4043 or 4643 filler for fusion welds and expect HAZ softening back toward T4 strength.
Can 6009 be formed, bent or molded?
Designed for stamping in T4 — good stretch and hemming behaviour, low springback compared with 5000 series; avoid extended room-temperature storage drift by controlling natural-aging time before forming.
What surface finishes work on 6009?
Standard route is zirconium/phosphate conversion coating plus e-coat and paint; clear anodizing is only fair because of the Cu and Mn content, so dyed or hard anodize is preferred if anodizing is required.
6009 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 | 0.8 |
| Feimpurity limit | ≤ 0.5 | 0.25 |
| Cuprovides bake-hardening response | 0.15 – 0.6 | 0.35 |
| Mn | 0.2 – 0.8 | 0.5 |
| Mg | 0.4 – 0.8 | 0.6 |
| Cr | ≤ 0.1 | — |
| Zn | ≤ 0.25 | — |
| Ti | ≤ 0.1 | — |
| Others (each) | ≤ 0.05 | — |
| Others (total) | ≤ 0.15 | — |
| Al | balance | — |
6009-T62 — frequently asked
What is 6009-T62 used for?
6009-T62 is typically used for automotive outer body panels, hoods and fenders, door skins and deck lids, hemmed closure panels, stamped inner reinforcement panels and spot-welded sheet sub-assemblies. In short: bake-hardenable body sheet; forms in T4, strengthens in bake; precursor to 6111.
What is the yield strength of 6009-T62?
6009-T62 has a typical yield strength of 234 MPa (33.9 ksi) and a tensile strength of 262 MPa (38 ksi) — stronger than 61% of aluminum grades. Strength varies by condition: see the 6 listed tempers.
Is 6009-T62 easy to machine?
Reasonably — machinability is rated good (58/100, worse than 54% of aluminum grades). Machines easily in T6/T62 with polished-flute carbide and good chip evacuation; T4 sheet is gummy and needs sharp tools, high speed and lubricant.
Can 6009-T62 be welded?
Yes — weldability is rated good (66/100). Excellent for resistance spot, laser and MIG welding of body panels; use 4043 or 4643 filler for fusion welds and expect HAZ softening back toward T4 strength.
What surface finishes work on 6009-T62?
Standard route is zirconium/phosphate conversion coating plus e-coat and paint; clear anodizing is only fair because of the Cu and Mn content, so dyed or hard anodize is preferred if anodizing is required.
Can 6009-T62 be formed, bent or molded?
Designed for stamping in T4 — good stretch and hemming behaviour, low springback compared with 5000 series; avoid extended room-temperature storage drift by controlling natural-aging time before forming.
What is the maximum service temperature of 6009-T62?
6009-T62 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 6009-T4 and 6009-T8?
T4 is the default condition — standard as-delivered automotive sheet condition: formable enough for stamping, then strengthened by the paint-bake cycle. T8: prestrain-plus-age route (essentially a strong bake response) when the highest strength from stamped 6009 is required. Yield strength is 131 MPa in T4 versus 255 MPa in T8.
Sources
- International Alloy Designations and Chemical Composition Limits for Wrought Aluminum (Teal Sheets) — The Aluminum Association (2018)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- ASTM B209 — Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate — ASTM International (2021)
- Aluminum: Properties and Physical Metallurgy (bake-hardenable 6000-series auto sheet) — ASM International (1984)
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.