Aluminum 295.0-T7
Temper
AA 295.0 · UNS A02950 · also C4A
T7 = solution heat treated and overaged (stabilized)
Use where dimensional stability at elevated temperature and reduced residual stress matter more than peak strength.
Values for the T7 condition
Other 295.0 tempers and conditions
295.0 is listed in 5 conditions; see the grade overview at 295.0.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
As fabricated | Only for non-structural or pre-machining stock; 295.0 is normally heat treated because as-cast strength is low. | 85 | 145 | 3 | 55 HB | 34 % IACS |
Solution heat treated and naturally aged | Pick when maximum ductility and impact tolerance matter more than strength (fittings, brackets subject to shock). | 110 | 220 | 8.5 | 60 HB | 35 % IACS |
T7This page Solution heat treated and overaged (stabilized) | Use where dimensional stability at elevated temperature and reduced residual stress matter more than peak strength. | 130 | 200 | 5 | 65 HB | 42 % IACS |
T6Default Solution heat treated and artificially aged | Standard general-purpose condition: best strength/ductility/machinability balance for engineering castings. | 165 | 250 | 5 | 75 HB | 37 % IACS |
T6, heat treated by the user | Choose when peak tensile/yield strength is required and low elongation is acceptable. | 220 | 285 | 2 | 90 HB | 38 % IACS |
What is 295.0-T7?
295.0-T7 is 295.0 in the T7 temper — use where dimensional stability at elevated temperature and reduced residual stress matter more than peak strength. 295.0-T7 has a yield strength of 130 MPa (18.9 ksi) and a tensile strength of 200 MPa (29 ksi) — weaker than 73% of aluminum grades. Elongation at break is 5% and the elastic modulus is 70 GPa (10.2 Msi). 295.0-T7 has a density of 2.81 g/cm³ (0.102 lb/in³), heavier than 86% of aluminum grades. It melts at 521°C (970 °F). T6 is the default condition FabDigit quotes; T7 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
- Limited formability — 10/100, worse than 80% of aluminum grades
- Difficult to weld — 25/100, worse than 76% of aluminum grades
- Hard to polish — 45/100, worse than 76% of aluminum grades
295.0-T7 properties
Typical room-temperature values for 295.0-T7; 15 are specific to this condition. Other listed values are 295.0 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
295.0-T7 has a density of 2.81 g/cm³ (0.102 lb/in³), heavier than 86% of aluminum grades. It melts at 521°C (970 °F).
Mechanical13
295.0-T7 has a yield strength of 130 MPa (18.9 ksi) and a tensile strength of 200 MPa (29 ksi) — weaker than 73% of aluminum grades. Elongation at break is 5% and the elastic modulus is 70 GPa (10.2 Msi).
Thermal6
295.0-T7 is rated for continuous service to 200°C (392 °F). It conducts heat at 159 W/m·K (91.9 BTU/hr·ft·°F), better than 74% of aluminum grades. Thermal expansion is 23 µm/m·K (12.8 µin/in·°F).
Electrical3
295.0-T7 conducts electricity at 42 % IACS, better than 81% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (45/100), worse than 62% of aluminum grades.
Sustainability4
Producing a kilogram of 295.0-T7 takes about 200 MJ of energy and emits 12.5 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 40%.
Manufacturability8
295.0-T7's machinability is good (68/100, better than 67% of aluminum grades); weldability poor (25/100); formability not recommended (10/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 295.0-T7
Is 295.0 easy to machine?
Machines very freely with sharp carbide/PCD tooling, high speeds and flood coolant; T62 gives the cleanest, chip-free finish, T4 tends to be gummier.
Can 295.0 be welded?
Poor fusion weldability — the Al-Cu composition is hot-crack prone; repair by GTAW with 4043/2319 filler only with preheat, and re-solution-treat and age if properties must be restored.
Can 295.0 be formed, bent or molded?
Sand (and plaster/permanent-mold) casting only; wide freezing range demands generous risering, directional solidification and clean degassed melt to avoid shrinkage porosity and hot tears.
What surface finishes work on 295.0?
Takes chromic/sulphuric protective anodize but with a dull grey-brown tint; usually shot-blasted then chromate-conversion coated and painted, or nickel/electroless-plated for wear.
295.0 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 |
|---|---|---|
| Si | 0.7 – 1.5 | 1.1 |
| Cuprincipal strengthening addition | 4 – 5 | 4.5 |
| Feimpurity limit | ≤ 1 | 0.4 |
| Mn | ≤ 0.35 | 0.1 |
| Mg | ≤ 0.03 | — |
| Zn | ≤ 0.35 | — |
| Tigrain refinement | ≤ 0.25 | 0.1 |
| Others (each) | ≤ 0.05 | — |
| Others (total) | ≤ 0.15 | — |
| Al | balance | — |
295.0-T7 — frequently asked
What is 295.0-T7 used for?
295.0-T7 is typically used for machine castings, flanges and general hardware. In short: balanced strength and machinability; heat-treatable sand casting alloy; poor fusion weldability.
What is the yield strength of 295.0-T7?
295.0-T7 has a typical yield strength of 130 MPa (18.9 ksi) and a tensile strength of 200 MPa (29 ksi) — weaker than 73% of aluminum grades. Strength varies by condition: see the 5 listed tempers.
Is 295.0-T7 easy to machine?
Reasonably — machinability is rated good (68/100, better than 67% of aluminum grades). Machines very freely with sharp carbide/PCD tooling, high speeds and flood coolant; T62 gives the cleanest, chip-free finish, T4 tends to be gummier.
Can 295.0-T7 be welded?
Not readily — weldability is rated poor (25/100). Poor fusion weldability — the Al-Cu composition is hot-crack prone; repair by GTAW with 4043/2319 filler only with preheat, and re-solution-treat and age if properties must be restored.
What surface finishes work on 295.0-T7?
Takes chromic/sulphuric protective anodize but with a dull grey-brown tint; usually shot-blasted then chromate-conversion coated and painted, or nickel/electroless-plated for wear.
Can 295.0-T7 be formed, bent or molded?
Sand (and plaster/permanent-mold) casting only; wide freezing range demands generous risering, directional solidification and clean degassed melt to avoid shrinkage porosity and hot tears.
What is the maximum service temperature of 295.0-T7?
295.0-T7 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 295.0-T6 and 295.0-F?
T6 is the default condition — standard general-purpose condition: best strength/ductility/machinability balance for engineering castings. F: only for non-structural or pre-machining stock; 295.0 is normally heat treated because as-cast strength is low. Yield strength is 165 MPa in T6 versus 85 MPa in F.
Sources
- ASTM B26/B26M — Aluminum-Alloy Sand Castings — ASTM International (2018)
- Aluminum Association Designations and Chemical Composition Limits for Aluminum Alloys in the Form of Castings and Ingot ('Pink Sheets') — The Aluminum Association (2018)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- ASM Specialty Handbook: Aluminum and Aluminum Alloys — ASM International (1993)
- SAE J452 / AMS 4230 (295.0 casting practice references) — SAE International (2015)
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.