Aluminum A7075-RAM10
JIS A7075-RAM10
A7075-RAM10 is a grain-refined, crack-resistant adaptation of 7075 Al-Zn-Mg-Cu chemistry for laser powder bed fusion, using an in-situ ceramic nucleant to control solidification cracking.
Reference datasheet — A7075-RAM10 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the T6 condition
A7075-RAM10 tempers and conditions
A7075-RAM10 is supplied in 5 conditions, soft to hard. T6 is the default FabDigit quotes; the values on this page are for it.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Stress relieved | Pick when distortion control and machinability matter more than strength, or before a full solution treatment. | 215 | 300 | 11 | 90 HB | 38 % IACS |
As built (as printed) | Use for dimensional/geometry trials or when parts will be heat treated later; strength is well below T6. | 280 | 370 | 8 | 108 HB | 24 % IACS |
Solution heat treated and overaged for stress-corrosion resistance | Choose when stress-corrosion cracking or exfoliation resistance is required and ~10 % strength loss is acceptable. | 400 | 465 | 8 | 138 HB | 40 % IACS |
T6Default Solution heat treated and artificially aged | Default condition: maximum strength and hardness, closest match to wrought 7075-T6 for structural AM parts. | 480 | 530 | 6 | 155 HB | 30 % IACS |
hot isostatic pressed then solution treated and aged | Specify for fatigue-critical or flight-hardware parts where residual porosity must be closed and scatter reduced. | 485 | 540 | 9 | 155 HB | — |
What is A7075-RAM10?
A7075-RAM10 is a grain-refined, crack-resistant adaptation of 7075 Al-Zn-Mg-Cu chemistry for laser powder bed fusion, using an in-situ ceramic nucleant to control solidification cracking. It is chosen when printed parts must approach wrought 7075 strength: 480 MPa yield, 530 MPa tensile, 6 % elongation, 155 HB (87 HRB), 120 W/m·K and 30 % IACS, with AB, SR, T6, T73 and HIP+T6 conditions on file. Limits are a 150 °C service ceiling, low corrosion resistance (score 35) requiring coatings, and reduced machinability (score 45) from the abrasive particles. A2024-RAM2 is the nearest alternative at slightly lower strength. A7075-RAM10 has a density of 2.9 g/cm³ (0.105 lb/in³), heavier than 98% of aluminum grades. It melts at 477°C (891 °F). A7075-RAM10 has a yield strength of 480 MPa (69.6 ksi) and a tensile strength of 530 MPa (76.9 ksi) — stronger than 95% of aluminum grades. Elongation at break is 6% and the elastic modulus is 78 GPa (11.3 Msi).
What is A7075-RAM10 used for?
- aerospace fittings
- high-strength AM tooling
- structural aerospace brackets
Advantages
- High strength — 480 MPa (69.6 ksi), better than 95% of aluminum grades
Limitations
- High embodied carbon — 18 kg CO₂/kg, worse than 99% of aluminum grades
- Needs corrosion protection — 35/100, worse than 85% of aluminum grades
- Poor heat conductor — 120 W/m·K (69.3 BTU/hr·ft·°F), worse than 80% of aluminum grades
A7075-RAM10 properties
Typical room-temperature values for A7075-RAM10-T6; bars are the position among aluminum grades.
Physical3
A7075-RAM10 has a density of 2.9 g/cm³ (0.105 lb/in³), heavier than 98% of aluminum grades. It melts at 477°C (891 °F).
Mechanical14
A7075-RAM10 has a yield strength of 480 MPa (69.6 ksi) and a tensile strength of 530 MPa (76.9 ksi) — stronger than 95% of aluminum grades. Elongation at break is 6% and the elastic modulus is 78 GPa (11.3 Msi).
Thermal6
A7075-RAM10 is rated for continuous service to 150°C (302 °F). It conducts heat at 120 W/m·K (69.3 BTU/hr·ft·°F), worse than 80% of aluminum grades. Thermal expansion is 22 µm/m·K (12.2 µin/in·°F).
Electrical3
A7075-RAM10 conducts electricity at 30 % IACS, worse than 73% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (35/100), worse than 85% of aluminum grades.
Sustainability4
Producing a kilogram of A7075-RAM10 takes about 260 MJ of energy and emits 18 kg of CO₂ — more than 99% of aluminum grades. Typical recycled content is 5%.
Manufacturability8
A7075-RAM10's machinability is fair (45/100, worse than 72% of aluminum grades); weldability fair (45/100); formability poor (15/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the aluminum family
Yield strength against density for every aluminum grade FabDigit runs. A7075-RAM10 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with A7075-RAM10
Is A7075-RAM10 easy to machine?
Machine in T6 with sharp polycrystalline-diamond or coated-carbide tooling and flood coolant — the in-situ ceramic particles are abrasive and cut tool life well below plain 7075.
Can A7075-RAM10 be welded?
The ceramic nucleant largely suppresses the solidification cracking that makes plain 7075 unweldable, so LPBF and 4000/5000 series-filler fusion repair are feasible; still expect strength loss in the HAZ and re-heat-treat after welding.
Can A7075-RAM10 be formed, bent or molded?
Not a wrought product — parts are built near-net by LPBF (preheated plate, stress relief on the plate before removal); post-print cold forming is not practical at these strength levels.
A7075-RAM10 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 |
|---|---|---|
| Znmatrix alloy per AA 7075 | 5.1 – 6.1 | 5.6 |
| Mg | 2.1 – 2.9 | 2.5 |
| Cu | 1.2 – 2 | 1.6 |
| Cr | 0.18 – 0.28 | 0.23 |
| Feimpurity max | ≤ 0.5 | 0.2 |
| Siimpurity max | ≤ 0.4 | 0.15 |
| Mnimpurity max | ≤ 0.3 | 0.05 |
| Timatrix Ti; additional Ti is bound in the ceramic reinforcement | ≤ 0.2 | 0.05 |
| ceramic reinforcement (in-situ TiB₂ / Alnominal vol % formed in situ by the RAM reactive additive; acts as grain nucleant/hot-crack suppressor | 8 – 12 | 10 |
| Al | balance |
What surface finishes work on A7075-RAM10?
Support removal, blasting and shot peening are routine; sulfuric or hard anodize gives protection but a mottled, dark appearance, and chromate-free primer/paint is the usual choice for corrosion-critical service.
Surface treatments FabDigit runs on aluminum parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Organic Coating
Equivalent designations
Standards and trade names that resolve to Aluminum A7075-RAM10 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Similar grades
- 7075
How much does A7075-RAM10 cost?
A7075-RAM10 is a high-cost aluminum ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
A7075-RAM10 — frequently asked
What is A7075-RAM10 used for?
A7075-RAM10 is typically used for aerospace fittings, high-strength AM tooling and structural aerospace brackets. In short: highest-strength LPBF aluminum; printable 7075 chemistry; needs coating in chlorides.
What is the yield strength of A7075-RAM10?
A7075-RAM10 has a typical yield strength of 480 MPa (69.6 ksi) and a tensile strength of 530 MPa (76.9 ksi) — stronger than 95% of aluminum grades. Strength varies by condition: see the 5 listed tempers.
Is A7075-RAM10 easy to machine?
Reasonably — machinability is rated fair (45/100, worse than 72% of aluminum grades). Machine in T6 with sharp polycrystalline-diamond or coated-carbide tooling and flood coolant — the in-situ ceramic particles are abrasive and cut tool life well below plain 7075.
Can A7075-RAM10 be welded?
With care — weldability is rated fair (45/100). The ceramic nucleant largely suppresses the solidification cracking that makes plain 7075 unweldable, so LPBF and 4000/5000 series-filler fusion repair are feasible; still expect strength loss in the HAZ and re-heat-treat after welding.
What surface finishes work on A7075-RAM10?
Support removal, blasting and shot peening are routine; sulfuric or hard anodize gives protection but a mottled, dark appearance, and chromate-free primer/paint is the usual choice for corrosion-critical service.
Can A7075-RAM10 be formed, bent or molded?
Not a wrought product — parts are built near-net by LPBF (preheated plate, stress relief on the plate before removal); post-print cold forming is not practical at these strength levels.
What is the maximum service temperature of A7075-RAM10?
A7075-RAM10 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 A7075-RAM10-T6 and A7075-RAM10-SR?
T6 is the default condition — default condition: maximum strength and hardness, closest match to wrought 7075-T6 for structural AM parts. SR: pick when distortion control and machinability matter more than strength, or before a full solution treatment. Yield strength is 480 MPa in T6 versus 215 MPa in SR.
How much does A7075-RAM10 cost?
A7075-RAM10 is a high-cost aluminum ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- A7075-RAM10 aluminum LPBF powder technical data — 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. 13B — Corrosion: Materials — ASM International (2005)
- MMPDS typical property data for 7075 products — Battelle/FAA (2023)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.