Aluminum A6061-RAM2 vs AlSi7Mg0.6
Aluminum · grade comparison
Aluminum A6061-RAM2 and AlSi7Mg0.6 are both aluminum grades. A6061-RAM2 is the stronger of the two: yield strength 330 MPa (47.9 ksi) against 285 MPa (41.3 ksi) for AlSi7Mg0.6, about 16% more. In exchange, AlSi7Mg0.6 is the more ductile: elongation 10% versus 9% for A6061-RAM2.
A6061-RAM2Choose it when strength drives the design.
AlSi7Mg0.6Choose it when the part is bent, formed or impact-loaded.
A6061-RAM2 vs AlSi7Mg0.6: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all aluminum grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all aluminum grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Compressive Strength
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Hardness, Rockwell B
Charpy V-Notch Impact (RT)
Same in both: Poisson's Ratio 0.33 · Hardness, Brinell 105 HB · Hardness, Vickers 115 HV
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Liquidus Temperature
Thermal
How each material carries heat and how hot it can run.
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Latent Heat of Fusion
Same in both: Thermal Conductivity 155 W/m·K89.6 BTU/hr·ft·°F · Max Service Temperature (continuous) 150°C302 °F · Min Service Temperature -196°C-321 °F
Electrical
Conductivity and insulation.
Electrical Conductivity
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Galvanic Potential (seawater, vs SCE)
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability Rating (AISI 1212 = 100 %)
Formability (cold)
Brazeability / Solderability
Polishability
Castability
Same in both: Machinability 65 / 100 · Weldability 65 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Same in both: Typical Recycled Content 10%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Modulus of Resilience
Thermal Diffusivity
Thermal Shock Resistance Index
Strength versus weight
Yield strength against density for every aluminum grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | A6061-RAM2 | AlSi7Mg0.6 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Both take the same 4 finishes: Electroless Nickel (EN), Epoxy Coating, Gold Plating, Silver Plating.
A6061-RAM2 vs AlSi7Mg0.6 — frequently asked
Is A6061-RAM2 stronger than AlSi7Mg0.6?
Yes. A6061-RAM2 has a typical yield strength of 330 MPa (47.9 ksi) against 285 MPa (41.3 ksi) for AlSi7Mg0.6 — about 16% more. Tensile strength is 370 MPa (53.7 ksi) vs 355 MPa (51.5 ksi).
Which is cheaper, A6061-RAM2 or AlSi7Mg0.6?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
When should I choose A6061-RAM2 over AlSi7Mg0.6?
Pick A6061-RAM2 when strength drives the design. Pick AlSi7Mg0.6 when the part is bent, formed or impact-loaded.
Ready to make it?
Upload a CAD file and FabDigit prices the part in A6061-RAM2 and AlSi7Mg0.6 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.
Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.