Aluminum A2024-RAM2-SR (Stress relieved)
Heat-treated state
JIS A2024-RAM2
Use to remove build residual stress before plate removal when full solution treatment is not wanted; strength drops, ductility rises.
Values for the SR condition
Other A2024-RAM2 tempers and conditions
A2024-RAM2 is listed in 6 conditions; see the grade overview at A2024-RAM2.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
SRThis page Stress relieved | Use to remove build residual stress before plate removal when full solution treatment is not wanted; strength drops, ductility rises. | 200 | 300 | 12 | 85 HB | 42 % IACS |
As built (as printed) | Pick for quick prototypes or when no furnace cycle is available; retains fine as-solidified structure with moderate strength. | 300 | 400 | 7 | 110 HB | 26 % IACS |
Solution heat treated and naturally aged | Best balance of strength and ductility/damage tolerance for structural AM parts, mirroring wrought 2024-T3/T4 behaviour. | 330 | 470 | 11 | 120 HB | 30 % IACS |
Solution heat treated and overaged (stabilized) | Choose for improved dimensional stability, intergranular/exfoliation corrosion resistance and elevated-temperature stability at some strength cost. | 370 | 440 | 8 | 125 HB | 37 % IACS |
T6Default Solution heat treated and artificially aged | Default choice when maximum yield strength and hardness are needed and moderate ductility is acceptable. | 430 | 500 | 6 | 140 HB | 32 % IACS |
hot isostatic pressed then solution treated and artificially aged | Specify for fatigue-critical or flight-hardware parts where residual gas porosity must be closed before ageing. | 430 | 505 | 8 | 140 HB | 32 % IACS |
What is A2024-RAM2-SR?
A2024-RAM2-SR is A2024-RAM2 heat treated to SR — use to remove build residual stress before plate removal when full solution treatment is not wanted; strength drops, ductility rises. A2024-RAM2-SR has a yield strength of 200 MPa (29 ksi) and a tensile strength of 300 MPa (43.5 ksi) — stronger than 53% of aluminum grades. Elongation at break is 12% and the elastic modulus is 76 GPa (11 Msi). A2024-RAM2-SR has a density of 2.78 g/cm³ (0.1 lb/in³), heavier than 74% of aluminum grades. It melts at 502°C (936 °F). T6 is the default condition FabDigit quotes; SR is available on request or by drawing note.
Advantages
- High service temperature — 200°C (392 °F), better than 90% of aluminum grades
- High electrical conductivity — 42 % IACS, better than 81% of aluminum grades
Limitations
- Needs corrosion protection — 30/100, worse than 98% of aluminum grades
- High embodied carbon — 15 kg CO₂/kg, worse than 97% of aluminum grades
A2024-RAM2-SR properties
Typical room-temperature values for A2024-RAM2-SR; 22 are specific to this condition. Other listed values are A2024-RAM2 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
A2024-RAM2-SR has a density of 2.78 g/cm³ (0.1 lb/in³), heavier than 74% of aluminum grades. It melts at 502°C (936 °F).
Mechanical14
A2024-RAM2-SR has a yield strength of 200 MPa (29 ksi) and a tensile strength of 300 MPa (43.5 ksi) — stronger than 53% of aluminum grades. Elongation at break is 12% and the elastic modulus is 76 GPa (11 Msi).
Thermal6
A2024-RAM2-SR is rated for continuous service to 200°C (392 °F). It conducts heat at 145 W/m·K (83.8 BTU/hr·ft·°F), better than 53% of aluminum grades. Thermal expansion is 21.5 µm/m·K (11.9 µin/in·°F).
Electrical3
A2024-RAM2-SR conducts electricity at 42 % IACS, better than 81% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is poor (30/100), worse than 98% of aluminum grades.
Sustainability4
Producing a kilogram of A2024-RAM2-SR takes about 260 MJ of energy and emits 15 kg of CO₂ — more than 99% of aluminum grades. Typical recycled content is 5%.
Manufacturability7
A2024-RAM2-SR's machinability is fair (50/100, worse than 65% of aluminum grades); weldability poor (30/100); formability fair (35/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with A2024-RAM2-SR
Is A2024-RAM2 easy to machine?
Machines like wrought 2024 but the hard ceramic dispersoids are abrasive — use polycrystalline diamond or coated carbide, sharp positive rake, high speed and flood coolant.
Can A2024-RAM2 be welded?
Not recommended for fusion welding (Al-Cu-Mg hot-cracking sensitivity); join by fasteners, adhesive or friction stir where qualified.
Can A2024-RAM2 be formed, bent or molded?
Produced net shape by LPBF at ~30–60 µm layers with preheated plate; the RAM nucleant suppresses solidification cracking, so no cold forming step is involved.
What surface finishes work on A2024-RAM2?
Support removal, blasting and machining of critical faces; protect with hard anodize, chromate-free conversion coat or primer — bare Cu-bearing surfaces pit readily in chlorides.
A2024-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.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Cuprincipal strengthening element (2024 base) | 3.8 – 4.9 | 4.4 |
| Mg | 1.2 – 1.8 | 1.5 |
| Mn | 0.3 – 0.9 | 0.6 |
| Siimpurity limit | ≤ 0.5 | 0.15 |
| Feimpurity limit | ≤ 0.5 | 0.2 |
| Cr | ≤ 0.1 | 0.02 |
| Zn | ≤ 0.25 | 0.05 |
| Tiexcludes Ti bound in the added ceramic nucleant | ≤ 0.15 | 0.03 |
| ceramic nucleant (TiB2/TiC type, RAM addin-situ reactive additive that provides grain refinement and eliminates solidification cracking | 1 – 3 | 2 |
| Al | balance | — |
A2024-RAM2-SR — frequently asked
What is A2024-RAM2-SR used for?
A2024-RAM2-SR is typically used for aerospace structural parts, high-strength brackets and replacement of wrought 2024 components. In short: printable 2024 chemistry; high strength, low corrosion resistance; not fusion weldable.
What is the yield strength of A2024-RAM2-SR?
A2024-RAM2-SR has a typical yield strength of 200 MPa (29 ksi) and a tensile strength of 300 MPa (43.5 ksi) — stronger than 53% of aluminum grades. Strength varies by condition: see the 6 listed tempers.
Is A2024-RAM2-SR easy to machine?
Reasonably — machinability is rated fair (50/100, worse than 65% of aluminum grades). Machines like wrought 2024 but the hard ceramic dispersoids are abrasive — use polycrystalline diamond or coated carbide, sharp positive rake, high speed and flood coolant.
Can A2024-RAM2-SR be welded?
Not readily — weldability is rated poor (30/100). Not recommended for fusion welding (Al-Cu-Mg hot-cracking sensitivity); join by fasteners, adhesive or friction stir where qualified.
What surface finishes work on A2024-RAM2-SR?
Support removal, blasting and machining of critical faces; protect with hard anodize, chromate-free conversion coat or primer — bare Cu-bearing surfaces pit readily in chlorides.
Can A2024-RAM2-SR be formed, bent or molded?
Produced net shape by LPBF at ~30–60 µm layers with preheated plate; the RAM nucleant suppresses solidification cracking, so no cold forming step is involved.
What is the maximum service temperature of A2024-RAM2-SR?
A2024-RAM2-SR is rated for continuous use to about 200°C (392 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between A2024-RAM2-T6 and A2024-RAM2-SR?
T6 is the default condition — default choice when maximum yield strength and hardness are needed and moderate ductility is acceptable. SR: use to remove build residual stress before plate removal when full solution treatment is not wanted; strength drops, ductility rises. Yield strength is 430 MPa in T6 versus 200 MPa in SR.
Sources
- A2024-RAM2 reactive additive manufacturing aluminium powder datasheet — Elementum 3D (2023)
- 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 — ASM International (1990)
- ASM Handbook Vol. 24: Additive Manufacturing Processes — ASM International (2020)
- MMPDS-17 aluminium alloy 2024 design allowables (wrought reference basis) — Battelle/FAA (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.