Aluminum EN AC-48100
EN AC-48100
EN AC-48100 (AlSi17Cu4Mg, A390.0/AC9A) is a hypereutectic Al-Si casting alloy whose primary silicon particles give very low wear rates and low thermal expansion, available in F, T5, T6 and T7 under EN 1706.
Reference datasheet — EN AC-48100 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 F condition
EN AC-48100 tempers and conditions
EN AC-48100 is supplied in 4 conditions, soft to hard. F is the default FabDigit quotes; the values on this page are for it.
Compare all 4 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
FDefault As fabricated | Default supply condition for chill/permanent-mould and high-pressure die castings where wear resistance and low CTE matter more than strength. | 180 | 190 | 0.8 | 105 HB | 27 % IACS |
Cooled from hot working and artificially aged | Pick when a modest strength/hardness gain and better dimensional stability are wanted without the distortion risk and cost of a full solution treatment. | 195 | 210 | 0.7 | 115 HB | 27 % IACS |
Solution heat treated and overaged (stabilized) | Choose for maximum dimensional and thermal stability in hot-running parts, trading some strength for stability against growth in service. | 250 | 260 | 1 | 120 HB | 30 % IACS |
Solution heat treated and artificially aged | Highest strength and hardness condition — use for wear parts that also carry significant mechanical load, accepting near-zero ductility. | 300 | 310 | 0.8 | 145 HB | 25 % IACS |
What is EN AC-48100?
EN AC-48100 (AlSi17Cu4Mg, A390.0/AC9A) is a hypereutectic Al-Si casting alloy whose primary silicon particles give very low wear rates and low thermal expansion, available in F, T5, T6 and T7 under EN 1706. Engineers specify it for cast cylinder liners, bores and compressor components that run hot and in sliding contact, at 190 MPa tensile, 180 MPa yield, 105 HB, 134 W/m·K and 250 °C maximum service. Elongation is 0.8%, machinability is the lowest of the cast Al-Si group (score 32) and welding is hot-crack and porosity prone. EN AC-48000 AlSi12CuNiMg is the alternative when machinability and ductility matter more than wear. EN AC-48100 has a density of 2.73 g/cm³ (0.0986 lb/in³), heavier than 61% of aluminum grades. It melts at 507°C (945 °F). EN AC-48100 has a yield strength of 180 MPa (26.1 ksi) and a tensile strength of 190 MPa (27.6 ksi) — weaker than 54% of aluminum grades. Elongation at break is 0.8% and the elastic modulus is 81 GPa (11.7 Msi).
What is EN AC-48100 used for?
- cylinder liners
- compressor pistons
- wear-resistant parts
Advantages
- Low embodied carbon — 4 kg CO₂/kg, better than 100% of aluminum grades
- High service temperature — 250°C (482 °F), better than 97% of aluminum grades
- Stiff — 81 GPa (11.7 Msi), better than 96% of aluminum grades
Limitations
- Limited ductility — 0.8%, worse than 97% of aluminum grades
- Low fracture toughness — 14 MPa·√m (12.7 ksi·√in), worse than 97% of aluminum grades
- Limited formability — 5/100, worse than 94% of aluminum grades
- Difficult to machine — 32/100, worse than 89% of aluminum grades
- Low electrical conductivity — 27 % IACS, worse than 86% of aluminum grades
EN AC-48100 properties
Typical room-temperature values for EN AC-48100-F; bars are the position among aluminum grades.
Physical3
EN AC-48100 has a density of 2.73 g/cm³ (0.0986 lb/in³), heavier than 61% of aluminum grades. It melts at 507°C (945 °F).
Mechanical13
EN AC-48100 has a yield strength of 180 MPa (26.1 ksi) and a tensile strength of 190 MPa (27.6 ksi) — weaker than 54% of aluminum grades. Elongation at break is 0.8% and the elastic modulus is 81 GPa (11.7 Msi).
Thermal6
EN AC-48100 is rated for continuous service to 250°C (482 °F). It conducts heat at 134 W/m·K (77.4 BTU/hr·ft·°F), worse than 60% of aluminum grades. Thermal expansion is 18 µm/m·K (10 µin/in·°F).
Electrical3
EN AC-48100 conducts electricity at 27 % IACS, worse than 86% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (48/100), worse than 58% of aluminum grades.
Sustainability4
Producing a kilogram of EN AC-48100 takes about 55 MJ of energy and emits 4 kg of CO₂ — less than 100% of aluminum grades. Typical recycled content is 70%.
Manufacturability8
EN AC-48100's machinability is poor (32/100, worse than 89% of aluminum grades); weldability fair (35/100); formability not recommended (5/100).
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-48100 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with EN AC-48100
Is EN AC-48100 easy to machine?
Use PCD or CBN tooling with high speed, light feed and flood coolant — primary Si destroys carbide edges quickly; honed bores can be exposed to give a hard Si running surface.
Can EN AC-48100 be welded?
Poor: high Si plus 4–5 % Cu makes it hot-crack and porosity prone; repair only with Al-Si (4047/4145) filler and preheat, avoid structural welds.
Can EN AC-48100 be formed, bent or molded?
Casting-only alloy — pour hot (≈730–800 °C) with phosphorus modification and controlled cooling to keep primary Si fine and evenly distributed; suitable for HPDC, permanent mould and squeeze casting.
EN AC-48100 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 |
|---|---|---|
| Siprimary Si particles give the wear resistance; P-modified for fine primary Si | 16 – 18 | 17 |
| Cu | 4 – 5 | 4.5 |
| Mg | 0.45 – 0.65 | 0.55 |
| Fe≤0.5 for sand/permanent-mould quality (A390.0); up to 1.3 for die-cast (B390) | ≤ 1.3 | |
| Mn | ≤ 0.5 | |
| Ni | ≤ 0.3 | |
| Zn | ≤ 0.2 | |
| Ti | ≤ 0.2 | |
| others (each)total ≤0.15 | ≤ 0.05 | |
| Al | balance |
What surface finishes work on EN AC-48100?
Anodizing gives dark, uneven films (hard anodize acceptable for wear duty); prefer as-machined, honed, phosphate/paint or electroless-Ni for corrosion protection.
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-48100 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- AC-48100AlSi17Cu4Mg
- Similar grades
- A390.0AC9A
How much does EN AC-48100 cost?
EN AC-48100 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-48100 — frequently asked
What is EN AC-48100 used for?
EN AC-48100 is typically used for cylinder liners, compressor pistons and wear-resistant parts. In short: highest wear resistance, cast Al; hypereutectic, low expansion; requires PCD tooling.
What is the yield strength of EN AC-48100?
EN AC-48100 has a typical yield strength of 180 MPa (26.1 ksi) and a tensile strength of 190 MPa (27.6 ksi) — weaker than 54% of aluminum grades. Strength varies by condition: see the 4 listed tempers.
Is EN AC-48100 easy to machine?
Not especially — machinability is rated poor (32/100, worse than 89% of aluminum grades). Use PCD or CBN tooling with high speed, light feed and flood coolant — primary Si destroys carbide edges quickly; honed bores can be exposed to give a hard Si running surface.
Can EN AC-48100 be welded?
With care — weldability is rated fair (35/100). Poor: high Si plus 4–5 % Cu makes it hot-crack and porosity prone; repair only with Al-Si (4047/4145) filler and preheat, avoid structural welds.
What surface finishes work on EN AC-48100?
Anodizing gives dark, uneven films (hard anodize acceptable for wear duty); prefer as-machined, honed, phosphate/paint or electroless-Ni for corrosion protection.
Can EN AC-48100 be formed, bent or molded?
Casting-only alloy — pour hot (≈730–800 °C) with phosphorus modification and controlled cooling to keep primary Si fine and evenly distributed; suitable for HPDC, permanent mould and squeeze casting.
What is the maximum service temperature of EN AC-48100?
EN AC-48100 is rated for continuous use to about 250°C (482 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between EN AC-48100-F and EN AC-48100-T6?
F is the default condition — default supply condition for chill/permanent-mould and high-pressure die castings where wear resistance and low CTE matter more than strength. T6: highest strength and hardness condition — use for wear parts that also carry significant mechanical load, accepting near-zero ductility. Yield strength is 180 MPa in F versus 300 MPa in T6.
How much does EN AC-48100 cost?
EN AC-48100 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)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys (A390.0 data) — ASM International (1990)
- ASTM B108 / B85 — Aluminum-alloy permanent mold and die castings — ASTM (2019)
- JIS H5202 (AC9A) and GB/T 1173 cast aluminium alloys — JISC / SAC (2013)
- Aluminum Association designations and typical properties for hypereutectic Al-Si casting alloys — The Aluminum Association (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.