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Aluminum 6060-T1

Temper

AA 6060 · UNS A96060 · EN AlMgSi, AlMgSi0.5 · JIS A6060

T1 = cooled from hot working and naturally aged

Low-cost soft-ish extrusion temper for tube and trim that must still be bent or crimped on site.

Values for the T1 condition

Other 6060 tempers and conditions

6060 is listed in 7 conditions; see the grade overview at 6060.

Compare all 7 conditionsHide
Condition · open for datasheetBest forYield MPaTensile MPaElong. %HardnessConductivity
T1This page
Cooled from hot working and naturally aged
Low-cost soft-ish extrusion temper for tube and trim that must still be bent or crimped on site.701302042 HB55 % IACS
Solution heat treated and naturally aged
Choose for parts that are bent, roll-formed or riveted after supply and then artificially aged (T4 → T6) for final strength.751402050 HB50 % IACS
T5, stress relieved by stretching
Press-quenched-in-still-air, artificially aged extrusion temper giving slightly lower strength than forced-air T5, used for thin architectural 6060 profiles with excellent anodizing.110150950 HB55 % IACS
Cooled from hot working and artificially aged
Standard economical press-quenched profile temper: good straightness and surface, moderate strength, still bendable.1351801265 HB56 % IACS
Solution heat treated and under-aged
Under-aged temper for profiles that must be bent, roll-formed or bright-anodized while keeping useful strength.1401951562 HB53 % IACS
Solution heat treated and artificially aged
The default stocked temper: full precipitation strength for structural profiles, frames and machined parts.1702151275 HB54 % IACS
T6 with improved mechanical properties
Highest-strength 6060 temper (special ageing/process control) for load-bearing window and curtain-wall profiles.1852301080 HB53 % IACS

What is 6060-T1?

6060-T1 is 6060 in the T1 temper — low-cost soft-ish extrusion temper for tube and trim that must still be bent or crimped on site. 6060-T1 has a yield strength of 70 MPa (10.2 ksi) and a tensile strength of 130 MPa (18.9 ksi) — weaker than 92% of aluminum grades. Elongation at break is 20% and the elastic modulus is 69 GPa (10 Msi). 6060-T1 has a density of 2.7 g/cm³ (0.0975 lb/in³), lighter than 59% of aluminum grades. It melts at 600°C (1,112 °F).

Advantages

  • Readily welded — 92/100, better than 95% of aluminum grades
  • Conducts heat well — 209 W/m·K (120.8 BTU/hr·ft·°F), better than 93% of aluminum grades
  • High electrical conductivity — 55 % IACS, better than 93% of aluminum grades
  • Polishes to a fine finish — 80/100, better than 93% of aluminum grades
  • Tough — resists crack growth — 35 MPa·√m (31.9 ksi·√in), better than 91% of aluminum grades

Limitations

  • Low strength — 70 MPa (10.2 ksi), worse than 92% of aluminum grades
  • Difficult to machine — 40/100, worse than 81% of aluminum grades
  • Limited service temperature — 120°C (248 °F), worse than 79% of aluminum grades

6060-T1 properties

Typical room-temperature values for 6060-T1; 19 are specific to this condition. Other listed values are 6060 reference data and may not represent this condition. Bars are the position among aluminum grades.

Physical3

6060-T1 has a density of 2.7 g/cm³ (0.0975 lb/in³), lighter than 59% of aluminum grades. It melts at 600°C (1,112 °F).

Density2.7 g/cm³0.1 lb/in³
Melting Point (Solidus)600°C1,112 °F
Liquidus Temperature655°C1,211 °F

Mechanical12

6060-T1 has a yield strength of 70 MPa (10.2 ksi) and a tensile strength of 130 MPa (18.9 ksi) — weaker than 92% of aluminum grades. Elongation at break is 20% and the elastic modulus is 69 GPa (10 Msi).

Elastic (Young's) Modulus69 GPa10 Msi
Shear Modulus26 GPa3.8 Msi
Bulk Modulus69 GPa10 Msi
Poisson's Ratio0.33
Tensile Strength (Ultimate)130 MPa18.9 ksi
Yield Strength (0.2% offset)70 MPa10.2 ksi
Elongation at Break20%
Shear Strength85 MPa12.3 ksi
Fatigue Strength (Endurance Limit)50 MPa7.3 ksi
Fracture Toughness (K_IC)35 MPa·√m31.9 ksi·√in
Hardness, Brinell42 HB
Hardness, Vickers47 HV

Thermal6

6060-T1 is rated for continuous service to 120°C (248 °F). It conducts heat at 209 W/m·K (120.8 BTU/hr·ft·°F), better than 93% of aluminum grades. Thermal expansion is 23.4 µm/m·K (13 µin/in·°F).

Thermal Conductivity209 W/m·K121 BTU/hr·ft·°F
Specific Heat Capacity898 J/kg·K0.21 BTU/lb·°F
Thermal Expansion (CTE, 20–100 °C)23.4 µm/m·K13 µin/in·°F
Latent Heat of Fusion397 J/g171 BTU/lb
Max Service Temperature (continuous)120°C248 °F
Min Service Temperature-196°C-321 °F

Electrical3

6060-T1 conducts electricity at 55 % IACS, better than 93% of aluminum grades.

Electrical Conductivity55 % IACS
Electrical Resistivity3.14×10⁻⁸ Ω·m1.24 µΩ·in
Magnetic Responsenon-magnetic

Chemical & Environmental3

Corrosion resistance is very good (70/100), better than 79% of aluminum grades.

Galvanic Potential (seawater, vs SCE)-0.83 V
Corrosion ResistanceVery good70/100
Chemical Resistance SummaryGood atmospheric and fresh-water resistance thanks to a passive oxide film; stable in neutral pH 4–9. Attacked by strong alkalis and strong acids, by chlorides in stagnant crevices (pitting), and by mercury/mercury salts; galvanic risk when coupled to steel or copper without isolation.

Sustainability4

Producing a kilogram of 6060-T1 takes about 200 MJ of energy and emits 13 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 35%.

Embodied Energy (primary production)200 MJ/kg85,985 BTU/lb
Embodied Carbon (primary production)13 kg CO₂/kg
Embodied Water1,200 L/kg144 gal/lb
Typical Recycled Content35%

Manufacturability7

6060-T1's machinability is fair (40/100, worse than 81% of aluminum grades); weldability excellent (92/100); formability excellent (85/100).

MachinabilityFair40/100
WeldabilityExcellent92/100
Formability (cold)Excellent85/100
CastabilityPoor25/100
Brazeability / SolderabilityGood60/100
PolishabilityVery good80/100
Anodizing Responseexcellent — the reference alloy for decorative and architectural anodizing; low Mg/Si and controlled Fe give clear, uniform, colour-stable films (also suited to bright/gloss anodizing)

Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.

Working with 6060-T1

Is 6060 easy to machine?

Machines easily but gummy in soft tempers — use polished-flute, high-rake carbide tools, 300–1000 m/min, generous flood or MQL to avoid built-up edge; machine in T5/T6 for best finish.

Can 6060 be welded?

Very good with GMAW/GTAW (ER4043 for crack resistance, ER5356 for colour-matched anodizing) and readily FSW-able; expect HAZ strength to drop toward T4/O values unless post-weld aged.

Can 6060 be formed, bent or molded?

Outstanding extrudability (thin walls, complex hollows, high press speeds); bend and roll-form in O/T4/T64, avoid tight radii in T6/T66; T4 material can be formed then aged to T6.

What surface finishes work on 6060?

Best-in-class decorative and bright anodizing (clear, colour and electrolytic bronze); also takes powder coat over chromate-free pretreatment, and mechanical brushing/polishing before anodize.

6060 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.

ElementSpec limit (wt %)Nominal
Si0.3 – 0.60.45
Fedeliberate Fe range for grain/surface control0.1 – 0.30.2
Cu≤ 0.10.02
Mn≤ 0.10.03
Mg0.35 – 0.60.45
Cr≤ 0.05—
Zn≤ 0.15—
Ti≤ 0.10.02
Others (each)total others max 0.15≤ 0.05—
Alremainder, ≥98.4 % typicalbalance—

6060-T1 — frequently asked

What is 6060-T1 used for?

6060-T1 is typically used for LED and lighting housings, architectural window and door extrusions, decorative trim and cover profiles, heat sink profiles, enclosure and cabinet frames and handrail and partition sections. In short: superior corrosion resistance; smooth.

What is the yield strength of 6060-T1?

6060-T1 has a typical yield strength of 70 MPa (10.2 ksi) and a tensile strength of 130 MPa (18.9 ksi) — weaker than 92% of aluminum grades. Strength varies by condition: see the 7 listed tempers.

Is 6060-T1 easy to machine?

Not especially — machinability is rated fair (40/100, worse than 81% of aluminum grades). Machines easily but gummy in soft tempers — use polished-flute, high-rake carbide tools, 300–1000 m/min, generous flood or MQL to avoid built-up edge; machine in T5/T6 for best finish.

Can 6060-T1 be welded?

Yes — weldability is rated excellent (92/100). Very good with GMAW/GTAW (ER4043 for crack resistance, ER5356 for colour-matched anodizing) and readily FSW-able; expect HAZ strength to drop toward T4/O values unless post-weld aged.

What surface finishes work on 6060-T1?

Best-in-class decorative and bright anodizing (clear, colour and electrolytic bronze); also takes powder coat over chromate-free pretreatment, and mechanical brushing/polishing before anodize.

Can 6060-T1 be formed, bent or molded?

Outstanding extrudability (thin walls, complex hollows, high press speeds); bend and roll-form in O/T4/T64, avoid tight radii in T6/T66; T4 material can be formed then aged to T6.

What is the maximum service temperature of 6060-T1?

6060-T1 is rated for continuous use to about 120°C (248 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.

Can FabDigit make parts in 6060-T1?

Yes — 6060-T1 is available for CNC machining and sheet metal with instant online pricing. Upload a STEP file to get a price and a DFM check.

Sources

  1. EN 573-3 Aluminium and aluminium alloys — chemical composition of wrought products — CEN (2019)
  2. EN 755-2 Aluminium and aluminium alloys — extruded rod/bar, tube and profiles: mechanical properties — CEN (2016)
  3. EN 1999-1-1 Eurocode 9: Design of aluminium structures — CEN (2007)
  4. ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
  5. International Alloy Designations and Chemical Composition Limits (Teal Sheets) — The Aluminum Association (2018)
  6. Extrusion alloy AA6060 / EN AW-6060 profile datasheets — Hydro / Constellium (2022)

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.