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Aluminum A6061-RAM2-T6

Temper · default condition

JIS A6061-RAM2

T6 = solution heat treated and artificially aged

Standard supplied/qualified condition — highest strength with wrought-6061-T6-like properties; use for structural printed parts.

High cost $$$$

Values for the T6 condition

Other A6061-RAM2 tempers and conditions

A6061-RAM2 is listed in 6 conditions; see the grade overview at A6061-RAM2.

Compare all 6 conditionsHide
Condition · open for datasheetBest forYield MPaTensile MPaElong. %HardnessConductivity
Stress relieved
Use when distortion control and dimensional stability matter more than strength, e.g. before EDM cut-off or thin-wall heat exchangers.1652401265 HB45 % IACS
Solution heat treated and naturally aged
Choose when maximum ductility/toughness of a heat-treated print is wanted, or when parts will be straightened/formed before final aging.1802901672 HB36 % IACS
As built (as printed)
Pick for prototypes or when the print can be used directly; fine cellular structure gives moderate strength with high residual stress.230300682 HB33 % IACS
Cooled from hot working and artificially aged
Pick when quench distortion must be avoided on large or thin-wall prints; gives part of the T6 strength gain with no solution quench.280325795 HB38 % IACS
hot isostatic pressed then solution treated and aged
Specify for fatigue- or pressure-critical parts: HIP closes residual gas porosity and raises ductility and fatigue life at similar static strength.31536013102 HB41 % IACS
T6DefaultThis page
Solution heat treated and artificially aged
Standard supplied/qualified condition — highest strength with wrought-6061-T6-like properties; use for structural printed parts.3303709105 HB40 % IACS

What is A6061-RAM2-T6?

A6061-RAM2-T6 is A6061-RAM2 in the T6 temper — standard supplied/qualified condition — highest strength with wrought-6061-T6-like properties; use for structural printed parts. A6061-RAM2-T6 has a yield strength of 330 MPa (47.9 ksi) and a tensile strength of 370 MPa (53.7 ksi) — stronger than 81% of aluminum grades. Elongation at break is 9% and the elastic modulus is 73 GPa (10.6 Msi). A6061-RAM2-T6 has a density of 2.71 g/cm³ (0.0979 lb/in³), heavier than 51% of aluminum grades. It melts at 582°C (1,080 °F).

Advantages

  • High strength — 330 MPa (47.9 ksi), better than 81% of aluminum grades

Limitations

  • High embodied carbon — 16 kg CO₂/kg, worse than 98% of aluminum grades

A6061-RAM2-T6 properties

Typical room-temperature values for A6061-RAM2-T6; 12 are specific to this condition. Other listed values are A6061-RAM2 reference data and may not represent this condition. Bars are the position among aluminum grades.

Physical3

A6061-RAM2-T6 has a density of 2.71 g/cm³ (0.0979 lb/in³), heavier than 51% of aluminum grades. It melts at 582°C (1,080 °F).

Density2.71 g/cm³0.1 lb/in³
Melting Point (Solidus)582°C1,080 °F
Liquidus Temperature652°C1,206 °F

Mechanical14

A6061-RAM2-T6 has a yield strength of 330 MPa (47.9 ksi) and a tensile strength of 370 MPa (53.7 ksi) — stronger than 81% of aluminum grades. Elongation at break is 9% and the elastic modulus is 73 GPa (10.6 Msi).

Elastic (Young's) Modulus73 GPa10.6 Msi
Shear Modulus26 GPa3.8 Msi
Bulk Modulus69 GPa10 Msi
Poisson's Ratio0.33
Tensile Strength (Ultimate)370 MPa53.7 ksi
Yield Strength (0.2% offset)330 MPa47.9 ksi
Elongation at Break9%
Compressive Strength335 MPa48.6 ksi
Shear Strength220 MPa31.9 ksi
Fatigue Strength (Endurance Limit)100 MPa14.5 ksi
Fracture Toughness (K_IC)27 MPa·√m24.6 ksi·√in
Hardness, Brinell105 HB
Hardness, Rockwell B60 HRB
Hardness, Vickers115 HV

Thermal6

A6061-RAM2-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 23.2 µm/m·K (12.9 µin/in·°F).

Thermal Conductivity155 W/m·K89.6 BTU/hr·ft·°F
Specific Heat Capacity896 J/kg·K0.21 BTU/lb·°F
Thermal Expansion (CTE, 20–100 °C)23.2 µm/m·K12.9 µin/in·°F
Latent Heat of Fusion400 J/g172 BTU/lb
Max Service Temperature (continuous)150°C302 °F
Min Service Temperature-196°C-321 °F

Electrical3

A6061-RAM2-T6 conducts electricity at 40 % IACS, better than 72% of aluminum grades.

Electrical Conductivity40 % IACS
Electrical Resistivity4.3×10⁻⁸ Ω·m1.69 µΩ·in
Magnetic Responsenon-magnetic

Chemical & Environmental3

Corrosion resistance is good (60/100), better than 62% of aluminum grades.

Galvanic Potential (seawater, vs SCE)-0.78 V
Corrosion ResistanceGood60/100
Chemical Resistance SummaryGood in neutral water, atmosphere and most organics; attacked by strong alkalis and strong acids; avoid direct contact with copper alloys or steel in wet service to prevent galvanic attack; slightly more pitting-prone than wrought 6061 because of dispersed nucleant particles.

Sustainability4

Producing a kilogram of A6061-RAM2-T6 takes about 250 MJ of energy and emits 16 kg of CO₂ — more than 98% of aluminum grades. Typical recycled content is 10%.

Embodied Energy (primary production)250 MJ/kg107,481 BTU/lb
Embodied Carbon (primary production)16 kg CO₂/kg
Embodied Water1,200 L/kg144 gal/lb
Typical Recycled Content10%

Manufacturability7

A6061-RAM2-T6's machinability is good (65/100, better than 62% of aluminum grades); weldability good (65/100); formability poor (30/100).

MachinabilityGood65/100
Machinability Rating (AISI 1212 = 100 %)130%
WeldabilityGood65/100
Formability (cold)Poor30/100
Brazeability / SolderabilityFair45/100
PolishabilityGood60/100
Anodizing Responsefair to good — takes clear and hard-coat anodize like 6061, but dispersed nucleant/ceramic particles and as-built surface porosity can cause slight color mottling; machine or polish critical cosmetic surfaces first.

Common Calculations5

Specific Strength (UTS / density)calculated137 kN·m/kg
Specific Stiffness (E / density)calculated26.9 MN·m/kg
Modulus of Resiliencecalculated746 kJ/m³
Thermal Diffusivitycalculated63.8 mm²/s
Thermal Shock Resistance Indexcalculated34

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

Working with A6061-RAM2-T6

Is A6061-RAM2 easy to machine?

Machines much like 6061-T6 with sharp uncoated-carbide or polished-flute tools and flood coolant, but the hard nucleant/ceramic dispersoids are abrasive — expect shorter tool life than wrought 6061.

Can A6061-RAM2 be welded?

Weldable by TIG/laser with 4043 or 5356 filler; the nucleant addition strongly reduces the solidification-cracking tendency that limits plain 6061, though the HAZ still overages and needs re-solution + aging for full strength.

Can A6061-RAM2 be formed, bent or molded?

Print on a heated plate (≈150–200 °C) with a stress-relief cycle before build-plate removal; supports and thin walls should be designed for the T6 quench distortion, and only mild post-print straightening in T4 is advisable.

What surface finishes work on A6061-RAM2?

Bead-blast or machine the as-built skin before finishing; clear/hard anodize and chromate-free conversion coatings work but the dispersoids can give slight color mottling, so machine or polish cosmetic faces first.

A6061-RAM2 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
Mg6061 base chemistry0.8 – 1.21
Si0.4 – 0.80.6
Cu0.15 – 0.40.28
Cr0.04 – 0.350.2
Feimpurity, kept low in AM powder≤ 0.70.2
Mn≤ 0.150.05
Zn≤ 0.250.05
Ti≤ 0.150.05
nucleant addition (Zr-based nanoparticleproprietary grain-refining / crack-suppressing additive; exact level and chemistry are supplier-controlled0.5 – 32
Albalance—

A6061-RAM2-T6 — frequently asked

What is A6061-RAM2-T6 used for?

A6061-RAM2-T6 is typically used for general engineering AM parts, automotive brackets and thermal management components. In short: weldable printed 6061; best thermal conductivity in family; easiest-machining LPBF aluminum.

What is the yield strength of A6061-RAM2-T6?

A6061-RAM2-T6 has a typical yield strength of 330 MPa (47.9 ksi) and a tensile strength of 370 MPa (53.7 ksi) — stronger than 81% of aluminum grades. Strength varies by condition: see the 6 listed tempers.

Is A6061-RAM2-T6 easy to machine?

Reasonably — machinability is rated good (65/100, better than 62% of aluminum grades). Machines much like 6061-T6 with sharp uncoated-carbide or polished-flute tools and flood coolant, but the hard nucleant/ceramic dispersoids are abrasive — expect shorter tool life than wrought 6061.

Can A6061-RAM2-T6 be welded?

Yes — weldability is rated good (65/100). Weldable by TIG/laser with 4043 or 5356 filler; the nucleant addition strongly reduces the solidification-cracking tendency that limits plain 6061, though the HAZ still overages and needs re-solution + aging for full strength.

What surface finishes work on A6061-RAM2-T6?

Bead-blast or machine the as-built skin before finishing; clear/hard anodize and chromate-free conversion coatings work but the dispersoids can give slight color mottling, so machine or polish cosmetic faces first.

Can A6061-RAM2-T6 be formed, bent or molded?

Print on a heated plate (≈150–200 °C) with a stress-relief cycle before build-plate removal; supports and thin walls should be designed for the T6 quench distortion, and only mild post-print straightening in T4 is advisable.

What is the maximum service temperature of A6061-RAM2-T6?

A6061-RAM2-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 A6061-RAM2-T6 and A6061-RAM2-SR?

T6 is the default condition — standard supplied/qualified condition — highest strength with wrought-6061-T6-like properties; use for structural printed parts. SR: use when distortion control and dimensional stability matter more than strength, e.g. before EDM cut-off or thin-wall heat exchangers. Yield strength is 330 MPa in T6 versus 165 MPa in SR.

Sources

  1. A6061-RAM2 aluminium AM powder technical data — Elementum 3D (2023)
  2. ASM Handbook Vol. 2: Properties and Selection — Nonferrous Alloys (6061 data) — ASM International (1990)
  3. Aluminum Standards and Data / Teal Sheets — alloy 6061 registration — The Aluminum Association (2018)
  4. ASM Handbook Vol. 13B: Corrosion — Aluminium alloys — ASM International (2005)
  5. Peer-reviewed LPBF nanoparticle-functionalized 6061 mechanical property studies (HRL/academic) — journal literature compilation (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.