Aluminum EN AC-44100 D F
Heat-treated state · default condition
EN AC-44100 · JIS AC3A
D F = pressure die cast, as-cast
Default condition: high-pressure die castings, thin walls, highest strength of the three casting routes but low ductility.
Values for the D F condition
Other EN AC-44100 tempers and conditions
EN AC-44100 is listed in 3 conditions; see the grade overview at EN AC-44100.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Sand cast, as-cast | Pick for larger or one-off sand castings where thin-wall filling and low shrinkage matter more than strength. | 75 | 165 | 6 | 52 HB | 35 % IACS |
Permanent mould (gravity die) cast, as-cast | Gravity permanent-mould castings — finer eutectic than sand casting, moderate strength with usable ductility. | 85 | 185 | 7 | 57 HB | 34 % IACS |
D FDefaultThis page Pressure die cast, as-cast | Default condition: high-pressure die castings, thin walls, highest strength of the three casting routes but low ductility. | 140 | 270 | 2 | 62 HB | 31 % IACS |
What is EN AC-44100 D F?
EN AC-44100 D F is EN AC-44100 heat treated to D F — default condition: high-pressure die castings, thin walls, highest strength of the three casting routes but low ductility. EN AC-44100 D F has a yield strength of 140 MPa (20.3 ksi) and a tensile strength of 270 MPa (39.2 ksi) — weaker than 70% of aluminum grades. Elongation at break is 2% and the elastic modulus is 74 GPa (10.7 Msi). EN AC-44100 D F has a density of 2.65 g/cm³ (0.0957 lb/in³), lighter than 90% of aluminum grades. It melts at 574°C (1,065 °F).
Limitations
- Hard to polish — 40/100, worse than 91% of aluminum grades
- Low fracture toughness — 16 MPa·√m (14.6 ksi·√in), worse than 89% of aluminum grades
- Limited ductility — 2%, worse than 87% of aluminum grades
- Limited formability — 10/100, worse than 80% of aluminum grades
EN AC-44100 D F properties
Typical room-temperature values for EN AC-44100 D F; 10 are specific to this condition. Other listed values are EN AC-44100 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
EN AC-44100 D F has a density of 2.65 g/cm³ (0.0957 lb/in³), lighter than 90% of aluminum grades. It melts at 574°C (1,065 °F).
Mechanical12
EN AC-44100 D F has a yield strength of 140 MPa (20.3 ksi) and a tensile strength of 270 MPa (39.2 ksi) — weaker than 70% of aluminum grades. Elongation at break is 2% and the elastic modulus is 74 GPa (10.7 Msi).
Thermal6
EN AC-44100 D F is rated for continuous service to 150°C (302 °F). It conducts heat at 130 W/m·K (75.1 BTU/hr·ft·°F), worse than 65% of aluminum grades. Thermal expansion is 20.4 µm/m·K (11.3 µin/in·°F).
Electrical3
EN AC-44100 D F conducts electricity at 31 % IACS, worse than 68% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is good (58/100), better than 57% of aluminum grades.
Sustainability4
Producing a kilogram of EN AC-44100 D F takes about 200 MJ of energy and emits 12 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 85%.
Manufacturability8
EN AC-44100 D F's machinability is fair (45/100, worse than 72% of aluminum grades); weldability good (65/100); formability not recommended (10/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with EN AC-44100 D F
Is EN AC-44100 easy to machine?
Fair machinability — use PCD or coated carbide with high speed, positive rake and flood coolant; eutectic silicon is abrasive and tool wear, not cutting force, limits life.
Can EN AC-44100 be welded?
TIG/MIG weldable with AlSi12 (ER4047) filler for sand/permanent-mould parts; die castings often blister from entrapped gas, so prefer mechanical joining or vacuum-assisted castings.
Can EN AC-44100 be formed, bent or molded?
Excellent castability: eutectic freezing gives top fluidity, low shrinkage (~1.1 %) and good pressure tightness in walls down to ~1 mm; modify with Sr/Na and avoid slow cooling to keep silicon fine.
What surface finishes work on EN AC-44100?
Best finished by chromate/conversion coating, powder coat or paint; decorative anodizing turns dark grey and patchy, while hard anodizing and shot blasting work acceptably.
EN AC-44100 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 |
|---|---|---|
| Sieutectic level; Na/Sr modified in most foundry practice | 10.5 – 13.5 | 12 |
| Fehigher allowance than AlSi12(a) | ≤ 0.65 | 0.4 |
| Cu | ≤ 0.15 | 0.05 |
| Mn | ≤ 0.55 | 0.2 |
| Mg | ≤ 0.1 | 0.03 |
| Zn | ≤ 0.15 | 0.05 |
| Tigrain refiner residual | ≤ 0.2 | 0.05 |
| Others (each)total others 0.15 max | ≤ 0.05 | — |
| Al | balance | — |
EN AC-44100 D F — frequently asked
What is EN AC-44100 D F used for?
EN AC-44100 D F is typically used for die-cast housings, thin-wall automotive parts and pressure-tight components. In short: low-impurity eutectic AlSi12; low shrinkage, pressure tight; high-fluidity die-casting alloy.
What is the yield strength of EN AC-44100 D F?
EN AC-44100 D F has a typical yield strength of 140 MPa (20.3 ksi) and a tensile strength of 270 MPa (39.2 ksi) — weaker than 70% of aluminum grades. Strength varies by condition: see the 3 listed tempers.
Is EN AC-44100 D F easy to machine?
Reasonably — machinability is rated fair (45/100, worse than 72% of aluminum grades). Fair machinability — use PCD or coated carbide with high speed, positive rake and flood coolant; eutectic silicon is abrasive and tool wear, not cutting force, limits life.
Can EN AC-44100 D F be welded?
Yes — weldability is rated good (65/100). TIG/MIG weldable with AlSi12 (ER4047) filler for sand/permanent-mould parts; die castings often blister from entrapped gas, so prefer mechanical joining or vacuum-assisted castings.
What surface finishes work on EN AC-44100 D F?
Best finished by chromate/conversion coating, powder coat or paint; decorative anodizing turns dark grey and patchy, while hard anodizing and shot blasting work acceptably.
Can EN AC-44100 D F be formed, bent or molded?
Excellent castability: eutectic freezing gives top fluidity, low shrinkage (~1.1 %) and good pressure tightness in walls down to ~1 mm; modify with Sr/Na and avoid slow cooling to keep silicon fine.
What is the maximum service temperature of EN AC-44100 D F?
EN AC-44100 D F 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.
Sources
- EN 1706 — Aluminium and aluminium alloys: Castings, chemical composition and mechanical properties — CEN (2020)
- EN 1676 — Aluminium alloy ingots for remelting — CEN (2020)
- ASM Handbook Vol.2 — Properties of Nonferrous Alloys (413.0/A413.0 data) — ASM International (1990)
- GB/T 1173 — (ZL102) — SAC (2013)
- JIS H 5302 — Aluminium alloy die castings (ADC1) — JISC (2006)
- Aluminum Association Teal Sheets — Designations and chemical composition limits for aluminum alloys in the form of castings and ingot — The Aluminum Association (2019)
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.