Aluminum EN AC-46200-T5
Temper
EN AC-46200
T5 = cooled from hot working and artificially aged
Pick artificial ageing without solution treatment to lift yield to 175 MPa and improve dimensional stability with low distortion risk, at lower cost than T6.
Values for the T5 condition
Other EN AC-46200 tempers and conditions
EN AC-46200 is listed in 6 conditions; see the grade overview at EN AC-46200.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
F | Choose as-cast sand casting for one-offs, small batches or large complex geometries; the coarser structure gives 175 MPa tensile, below the permanent-mould route. | 105 | 175 | 1.5 | 70 HB | 27 % IACS |
F-KDefault F | Pick the standard as-cast chill (permanent mould) supply condition for lowest cost and good dimensional stability with no heat treatment; expect 200 MPa tensile and 1.5% elongation. | 120 | 200 | 1.5 | 80 HB | 27 % IACS |
F | Use as-cast high-pressure die casting for thin-wall parts, where rapid solidification refines the structure to 250 MPa tensile; internal porosity rules out solution heat treatment. | 150 | 250 | 1.5 | 90 HB | 29 % IACS |
Solution heat treated and overaged (stabilized) | Use solution treatment with overageing when dimensional and structural stability up to 200 °C outrank strength, as in engine parts under sustained heat; tensile drops to 230 MPa. | 155 | 230 | 3 | 80 HB | 30 % IACS |
T5This page Cooled from hot working and artificially aged | Pick artificial ageing without solution treatment to lift yield to 175 MPa and improve dimensional stability with low distortion risk, at lower cost than T6. | 175 | 215 | 1.5 | 85 HB | 28 % IACS |
Solution heat treated and artificially aged | Choose solution heat treatment plus artificial ageing for loaded castings needing 270 MPa tensile and 95 HB; limited to sand or permanent-mould parts, and watch solution distortion. | 185 | 270 | 2.5 | 95 HB | 29 % IACS |
What is EN AC-46200-T5?
EN AC-46200-T5 is EN AC-46200 in the T5 temper — pick artificial ageing without solution treatment to lift yield to 175 MPa and improve dimensional stability with low distortion risk, at lower cost than T6. EN AC-46200-T5 has a yield strength of 175 MPa (25.4 ksi) and a tensile strength of 215 MPa (31.2 ksi) — weaker than 55% of aluminum grades. Elongation at break is 1.5% and the elastic modulus is 75 GPa (10.9 Msi). EN AC-46200-T5 has a density of 2.75 g/cm³ (0.0994 lb/in³), heavier than 67% of aluminum grades. It melts at 510°C (950 °F). F-K is the default condition FabDigit quotes; T5 is available on request or by drawing note.
Advantages
- Easy to machine — 78/100, better than 89% of aluminum grades
- High service temperature — 175°C (347 °F), better than 83% of aluminum grades
Limitations
- Limited formability — 5/100, worse than 94% of aluminum grades
- Limited ductility — 1.5%, worse than 91% of aluminum grades
- Hard to polish — 40/100, worse than 91% of aluminum grades
- Poor heat conductor — 115 W/m·K (66.4 BTU/hr·ft·°F), worse than 85% of aluminum grades
- Low fracture toughness — 17 MPa·√m (15.5 ksi·√in), worse than 83% of aluminum grades
EN AC-46200-T5 properties
Typical room-temperature values for EN AC-46200-T5; 22 are specific to this condition. Other listed values are EN AC-46200 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
EN AC-46200-T5 has a density of 2.75 g/cm³ (0.0994 lb/in³), heavier than 67% of aluminum grades. It melts at 510°C (950 °F).
Mechanical13
EN AC-46200-T5 has a yield strength of 175 MPa (25.4 ksi) and a tensile strength of 215 MPa (31.2 ksi) — weaker than 55% of aluminum grades. Elongation at break is 1.5% and the elastic modulus is 75 GPa (10.9 Msi).
Thermal6
EN AC-46200-T5 is rated for continuous service to 175°C (347 °F). It conducts heat at 115 W/m·K (66.4 BTU/hr·ft·°F), worse than 85% of aluminum grades. Thermal expansion is 21.5 µm/m·K (11.9 µin/in·°F).
Electrical3
EN AC-46200-T5 conducts electricity at 28 % IACS, worse than 82% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (42/100), worse than 69% of aluminum grades.
Sustainability4
Producing a kilogram of EN AC-46200-T5 takes about 190 MJ of energy and emits 11.5 kg of CO₂ — less than 89% of aluminum grades. Typical recycled content is 80%.
Manufacturability7
EN AC-46200-T5's machinability is very good (78/100, better than 89% of aluminum grades); weldability poor (30/100); formability not recommended (5/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with EN AC-46200-T5
Is EN AC-46200 easy to machine?
Machinability is good and the copper phases help chip breaking, but the eutectic silicon is abrasive. Use PCD or diamond-coated tooling, or K-grade carbide, at high spindle speed with generous emulsion coolant.
Can EN AC-46200 be welded?
Copper makes the alloy hot-crack sensitive and fusion weldability is poor. For repairs use TIG with ER4145 (Al-Si-Cu) filler and 150–200 °C preheat; fusion welding is not recommended on structural castings.
Can EN AC-46200 be formed, bent or molded?
A casting alloy only: fluidity is excellent and hot-tearing tendency low, so sand, gravity die and high-pressure die casting all work. Control dissolved gas and apply Sr or Na modification with Ti-B grain refinement to improve elongation.
What surface finishes work on EN AC-46200?
Suited to shot blasting, chromate or chromate-free conversion coating, powder coat and hard anodizing. Decorative anodizing comes out grey and uneven, and polishing is limited by the silicon phase.
EN AC-46200 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 | 7.5 – 9.5 | 8.5 |
| Cu | 2 – 3.5 | 2.8 |
| Femaximum; die casting usually runs higher to prevent soldering | ≤ 0.8 | — |
| Mn | 0.15 – 0.65 | 0.35 |
| Mg | 0.05 – 0.55 | 0.25 |
| Ni | ≤ 0.35 | — |
| Zn | ≤ 1.2 | — |
| Pb | ≤ 0.25 | — |
| Sn | ≤ 0.15 | — |
| Ti | ≤ 0.25 | — |
| Others (each)each other impurity | ≤ 0.05 | — |
| Others (total)total of other impurities | ≤ 0.25 | — |
| Al | balance | — |
EN AC-46200-T5 — frequently asked
What is EN AC-46200-T5 used for?
EN AC-46200-T5 is typically used for housings, pump bodies and manifolds. In short: best-machining Al-Si-Cu casting; general-purpose automotive alloy; heat-treatable to T7.
What is the yield strength of EN AC-46200-T5?
EN AC-46200-T5 has a typical yield strength of 175 MPa (25.4 ksi) and a tensile strength of 215 MPa (31.2 ksi) — weaker than 55% of aluminum grades. Strength varies by condition: see the 6 listed tempers.
Is EN AC-46200-T5 easy to machine?
Yes — machinability is rated very good (78/100, better than 89% of aluminum grades). Machinability is good and the copper phases help chip breaking, but the eutectic silicon is abrasive. Use PCD or diamond-coated tooling, or K-grade carbide, at high spindle speed with generous emulsion coolant.
Can EN AC-46200-T5 be welded?
Not readily — weldability is rated poor (30/100). Copper makes the alloy hot-crack sensitive and fusion weldability is poor. For repairs use TIG with ER4145 (Al-Si-Cu) filler and 150–200 °C preheat; fusion welding is not recommended on structural castings.
What surface finishes work on EN AC-46200-T5?
Suited to shot blasting, chromate or chromate-free conversion coating, powder coat and hard anodizing. Decorative anodizing comes out grey and uneven, and polishing is limited by the silicon phase.
Can EN AC-46200-T5 be formed, bent or molded?
A casting alloy only: fluidity is excellent and hot-tearing tendency low, so sand, gravity die and high-pressure die casting all work. Control dissolved gas and apply Sr or Na modification with Ti-B grain refinement to improve elongation.
What is the maximum service temperature of EN AC-46200-T5?
EN AC-46200-T5 is rated for continuous use to about 175°C (347 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between EN AC-46200 F-K and EN AC-46200-T6?
F-K is the default condition — pick the standard as-cast chill (permanent mould) supply condition for lowest cost and good dimensional stability with no heat treatment; expect 200 MPa tensile and 1.5% elongation. T6: choose solution heat treatment plus artificial ageing for loaded castings needing 270 MPa tensile and 95 HB; limited to sand or permanent-mould parts, and watch solution distortion. Yield strength is 120 MPa in F-K versus 185 MPa in T6.
Sources
- EN 1706 — Aluminium and aluminium alloys: castings, chemical composition and mechanical properties — CEN (2020)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys (319.0 data) — ASM International (1990)
- ANSI H35.1 / AA Registration of Cast Aluminum Alloys — The Aluminum Association (2017)
- Foundry alloy datasheets (Al-Si-Cu casting alloys) — TRIMET / Rheinfelden Alloys (2021)
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.