Aluminum EN AC-44100
EN AC-44100 · JIS AC3A
EN AC-44100 (AlSi12(b); ADC1, 413.0, ZL102, AC3A) is a higher-purity eutectic AlSi12 casting alloy with tighter impurity control than the (a) variant, used as-cast (F) in die, sand and chill moulds.
Reference datasheet — EN AC-44100 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 D F condition
EN AC-44100 tempers and conditions
EN AC-44100 is supplied in 3 conditions, soft to hard. D F is the default FabDigit quotes; the values on this page are for it.
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 FDefault 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?
EN AC-44100 (AlSi12(b); ADC1, 413.0, ZL102, AC3A) is a higher-purity eutectic AlSi12 casting alloy with tighter impurity control than the (a) variant, used as-cast (F) in die, sand and chill moulds. It is selected for pressure die castings that need top fluidity and low shrinkage, giving 270 MPa tensile, 140 MPa yield, 2 % elongation, 62 HB, 130 W/m·K and 31 % IACS. Elongation is low, the alloy does not respond to heat treatment, service is limited to 150 °C, and die castings blister if solution treated or fusion welded. EN AC-44500 tolerates more iron for high-volume die casting. EN AC-44100 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). EN AC-44100 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).
What is EN AC-44100 used for?
- die-cast housings
- thin-wall automotive parts
- pressure-tight components
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 properties
Typical room-temperature values for EN AC-44100-D F; bars are the position among aluminum grades.
Physical3
EN AC-44100 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 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 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 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 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'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. 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. EN AC-44100 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with EN AC-44100
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.
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 |
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.
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 EN AC-44100 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
How much does EN AC-44100 cost?
EN AC-44100 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.
EN AC-44100 — frequently asked
What is EN AC-44100 used for?
EN AC-44100 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?
EN AC-44100 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 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 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?
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 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?
EN AC-44100 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.
How much does EN AC-44100 cost?
EN AC-44100 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
- 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; 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.