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Aluminum A360-T6

Temper

AA A360 · UNS A13600

T6 = solution heat treated and artificially aged

Choose for printed or gravity-cast AlSi10Mg needing isotropic, stable properties; not applied to gas-porous high-pressure die castings (blistering risk).

CNC machiningBudget cost $

Values for the T6 condition

Other A360 tempers and conditions

A360 is listed in 4 conditions; see the grade overview at A360.

Compare all 4 conditionsHide
Condition · open for datasheetBest forYield MPaTensile MPaElong. %HardnessConductivity
As fabricated
Standard supply condition for A360 die castings — use for thin-wall pressure-tight housings needing strength above ADC12.1653173.575 HB29 % IACS
Stress relieved
Standard condition for printed AlSi10Mg parts that must hold tight tolerances after machining — lower stress, more ductility.215345895 HB31 % IACS
T6This page
Solution heat treated and artificially aged
Choose for printed or gravity-cast AlSi10Mg needing isotropic, stable properties; not applied to gas-porous high-pressure die castings (blistering risk).2353358100 HB35 % IACS
As built (as printed)
Pick for printed AlSi10Mg parts used straight off the machine — highest strength but high residual stress and anisotropy.2554305114 HB26 % IACS

What is A360-T6?

A360-T6 is A360 in the T6 temper — choose for printed or gravity-cast AlSi10Mg needing isotropic, stable properties; not applied to gas-porous high-pressure die castings (blistering risk). A360-T6 has a yield strength of 235 MPa (34.1 ksi) and a tensile strength of 335 MPa (48.6 ksi) — stronger than 61% of aluminum grades. Elongation at break is 8% and the elastic modulus is 70 GPa (10.2 Msi). A360-T6 has a density of 2.63 g/cm³ (0.095 lb/in³), lighter than 95% of aluminum grades. It melts at 557°C (1,035 °F).

Advantages

  • Tough — resists crack growth — 30 MPa·√m (27.3 ksi·√in), better than 76% of aluminum grades

A360-T6 properties

Typical room-temperature values for A360-T6; 22 are specific to this condition. Other listed values are A360 reference data and may not represent this condition. Bars are the position among aluminum grades.

Physical3

A360-T6 has a density of 2.63 g/cm³ (0.095 lb/in³), lighter than 95% of aluminum grades. It melts at 557°C (1,035 °F).

Density2.63 g/cm³0.1 lb/in³
Melting Point (Solidus)557°C1,035 °F
Liquidus Temperature596°C1,105 °F

Mechanical14

A360-T6 has a yield strength of 235 MPa (34.1 ksi) and a tensile strength of 335 MPa (48.6 ksi) — stronger than 61% of aluminum grades. Elongation at break is 8% and the elastic modulus is 70 GPa (10.2 Msi).

Elastic (Young's) Modulus70 GPa10.2 Msi
Shear Modulus26.5 GPa3.8 Msi
Bulk Modulus69 GPa10 Msi
Poisson's Ratio0.33
Tensile Strength (Ultimate)335 MPa48.6 ksi
Yield Strength (0.2% offset)235 MPa34.1 ksi
Elongation at Break8%
Compressive Strength250 MPa36.3 ksi
Shear Strength210 MPa30.5 ksi
Fatigue Strength (Endurance Limit)110 MPa16 ksi
Fracture Toughness (K_IC)30 MPa·√m27.3 ksi·√in
Charpy V-Notch Impact (RT)6 J4.4 ft·lbf
Hardness, Brinell100 HB
Hardness, Vickers105 HV

Thermal6

A360-T6 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 21 µm/m·K (11.7 µin/in·°F).

Thermal Conductivity155 W/m·K89.6 BTU/hr·ft·°F
Specific Heat Capacity963 J/kg·K0.23 BTU/lb·°F
Thermal Expansion (CTE, 20–100 °C)21 µm/m·K11.7 µin/in·°F
Latent Heat of Fusion389 J/g167 BTU/lb
Max Service Temperature (continuous)150°C302 °F
Min Service Temperature-196°C-321 °F

Electrical3

A360-T6 conducts electricity at 35 % IACS, better than 52% of aluminum grades.

Electrical Conductivity35 % IACS
Electrical Resistivity4.9×10⁻⁸ Ω·m1.93 µΩ·in
Magnetic Responsenon-magnetic

Chemical & Environmental3

Corrosion resistance is good (57/100), better than 52% of aluminum grades.

Galvanic Potential (seawater, vs SCE)-0.83 V
Corrosion ResistanceGood57/100
Chemical Resistance SummaryGood in atmosphere and fresh water; attacked by strong acids and alkalis; susceptible to galvanic attack when coupled to steel/copper and to pitting in chloride-rich, stagnant water.

Sustainability4

Producing a kilogram of A360-T6 takes about 200 MJ of energy and emits 12.5 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 70%.

Embodied Energy (primary production)200 MJ/kg85,985 BTU/lb
Embodied Carbon (primary production)12.5 kg CO₂/kg
Embodied Water1,200 L/kg144 gal/lb
Typical Recycled Content70%

Manufacturability7

A360-T6's machinability is good (58/100, worse than 54% of aluminum grades); weldability fair (45/100); formability not recommended (12/100).

MachinabilityGood58/100
WeldabilityFair45/100
Formability (cold)Not recommended12/100
CastabilityExcellent92/100
Brazeability / SolderabilityPoor25/100
PolishabilityGood60/100
Anodizing Responsefair — protective/hardcoat anodizing works but 9–10 % Si gives a dark grey, non-uniform film; chromate or powder coating preferred for decorative parts

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

Working with A360-T6

Is A360 easy to machine?

Machines freely with sharp positive-rake tools and flood coolant, but 9–10 % Si is abrasive — use PCD or polished carbide and expect built-up edge with soft alloy chips.

Can A360 be welded?

TIG/MIG with 4043 or 4047 filler works on printed or low-porosity parts; high-pressure die castings often blister or crack from trapped gas, so favour mechanical joining or adhesive.

Can A360 be formed, bent or molded?

Excellent die-casting fluidity and hot-tear resistance for 1–3 mm walls; keep die temperature and vacuum control tight to limit porosity, and avoid post-cast solution treatment on HPDC parts.

What surface finishes work on A360?

Takes chromate/chrome-free conversion coatings, powder coat and paint well; anodizing gives a dark grey film, so use hardcoat only where wear matters and shot-blast or vibratory finish for cosmetics.

A360 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
Si9 – 109.5
Mg0.4 – 0.60.5
Felow-Fe version of 360.0 (which allows 2.0 %)≤ 1.3—
Cu≤ 0.6—
Mn≤ 0.35—
Ni≤ 0.5—
Zn≤ 0.5—
Sn≤ 0.15—
Others (total)each 0.10 max, total 0.25 max≤ 0.25—
Albalance—

A360-T6 — frequently asked

What is A360-T6 used for?

A360-T6 is typically used for cellphone and electronics housings, cookware, L-PBF printed brackets and manifolds, pressure-tight pump and valve housings, automotive covers and brackets and lighting and heat-sink bodies. In short: pressure die cast Al-Si-Mg.

What is the yield strength of A360-T6?

A360-T6 has a typical yield strength of 235 MPa (34.1 ksi) and a tensile strength of 335 MPa (48.6 ksi) — stronger than 61% of aluminum grades. Strength varies by condition: see the 4 listed tempers.

Is A360-T6 easy to machine?

Reasonably — machinability is rated good (58/100, worse than 54% of aluminum grades). Machines freely with sharp positive-rake tools and flood coolant, but 9–10 % Si is abrasive — use PCD or polished carbide and expect built-up edge with soft alloy chips.

Can A360-T6 be welded?

With care — weldability is rated fair (45/100). TIG/MIG with 4043 or 4047 filler works on printed or low-porosity parts; high-pressure die castings often blister or crack from trapped gas, so favour mechanical joining or adhesive.

What surface finishes work on A360-T6?

Takes chromate/chrome-free conversion coatings, powder coat and paint well; anodizing gives a dark grey film, so use hardcoat only where wear matters and shot-blast or vibratory finish for cosmetics.

Can A360-T6 be formed, bent or molded?

Excellent die-casting fluidity and hot-tear resistance for 1–3 mm walls; keep die temperature and vacuum control tight to limit porosity, and avoid post-cast solution treatment on HPDC parts.

What is the maximum service temperature of A360-T6?

A360-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.

Can FabDigit make parts in A360-T6?

Yes — A360-T6 is available for CNC machining; every part is priced by an engineer rather than instantly. Upload a STEP file to get a price and a DFM check.

Sources

  1. ASTM B85/B85M — Aluminum-Alloy Die Castings — ASTM International (2018)
  2. Designations and Chemical Composition Limits for Aluminum Alloys in the Form of Castings and Ingot (Pink Sheets) — The Aluminum Association (2018)
  3. ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
  4. ASM Specialty Handbook: Aluminum and Aluminum Alloys — ASM International (1993)
  5. AlSi10Mg L-PBF material data sheet — EOS / SLM Solutions (2023)

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.