Aluminum 295.0
AA 295.0 · UNS A02950 · also C4A
295.0 (UNS A02950, C4A) is an Al-Cu-Si sand-casting alloy in the ANSI/AA 2xx.x family, heat treatable to T4, T6, T62 and T7 or used as-cast (F).
Reference datasheet — 295.0 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
295.0 tempers and conditions
295.0 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 |
|---|---|---|---|---|---|---|
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 |
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?
295.0 (UNS A02950, C4A) is an Al-Cu-Si sand-casting alloy in the ANSI/AA 2xx.x family, heat treatable to T4, T6, T62 and T7 or used as-cast (F). Engineers pick it for general engineering castings that need a workable balance of strength and machinability: 165 MPa yield, 250 MPa tensile, 5% elongation, 75 HB, 151 W/m·K thermal conductivity and 37% IACS. Fusion weldability is poor, corrosion resistance is only moderate (score 42), and service is limited to about 150 °C. For permanent-mold work requiring pressure tightness, 296.0 is the closer relative. 295.0 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). 295.0 has a yield strength of 165 MPa (23.9 ksi) and a tensile strength of 250 MPa (36.3 ksi) — weaker than 58% of aluminum grades. Elongation at break is 5% and the elastic modulus is 70 GPa (10.2 Msi).
What is 295.0 used for?
- machine castings
- flanges
- general hardware
Advantages
- Easy to machine — 72/100, better than 80% 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 properties
Typical room-temperature values for 295.0-T6; bars are the position among aluminum grades.
Physical3
295.0 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 has a yield strength of 165 MPa (23.9 ksi) and a tensile strength of 250 MPa (36.3 ksi) — weaker than 58% of aluminum grades. Elongation at break is 5% and the elastic modulus is 70 GPa (10.2 Msi).
Thermal6
295.0 is rated for continuous service to 150°C (302 °F). It conducts heat at 151 W/m·K (87.2 BTU/hr·ft·°F), better than 63% of aluminum grades. Thermal expansion is 23 µm/m·K (12.8 µin/in·°F).
Electrical3
295.0 conducts electricity at 37 % IACS, better than 58% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (42/100), worse than 69% of aluminum grades.
Sustainability4
Producing a kilogram of 295.0 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's machinability is very good (72/100, better than 80% of aluminum grades); weldability poor (25/100); formability not recommended (10/100).
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. 295.0 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 295.0
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.
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 |
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.
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 295.0 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- A02950
- Trade names
- C4A
How much does 295.0 cost?
295.0 is a standard-cost aluminum ($$), cheaper than about 71% 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.
295.0 — frequently asked
What is 295.0 used for?
295.0 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?
295.0 has a typical yield strength of 165 MPa (23.9 ksi) and a tensile strength of 250 MPa (36.3 ksi) — weaker than 58% of aluminum grades. Strength varies by condition: see the 5 listed tempers.
Is 295.0 easy to machine?
Yes — machinability is rated very good (72/100, better than 80% 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 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?
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 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?
295.0 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 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.
How much does 295.0 cost?
295.0 is a standard-cost aluminum ($$), cheaper than about 71% 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
- 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; 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.