Aluminum EN AC-47100 F-K
Heat-treated state
EN AC-47100 · ASTM 384.0
Occasionally supplied as gravity/permanent-mould castings of the same chemistry; coarser eutectic gives lower strength than die casting but slightly better ductility and machinability.
Values for the F-K condition
Other EN AC-47100 tempers and conditions
EN AC-47100 is listed in 2 conditions; see the grade overview at EN AC-47100.
- F-K
- F
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
F-KThis page F | Occasionally supplied as gravity/permanent-mould castings of the same chemistry; coarser eutectic gives lower strength than die casting but slightly better ductility and machinability. | 95 | 175 | 2 | 60 HB | 29 % IACS |
FDefault As fabricated | The only condition registered in EN 1706 for this alloy: as-cast high-pressure die castings, used directly with no heat treatment. | 140 | 240 | 1 | 70 HB | 27 % IACS |
What is EN AC-47100 F-K?
EN AC-47100 F-K is EN AC-47100 heat treated to F-K — occasionally supplied as gravity/permanent-mould castings of the same chemistry; coarser eutectic gives lower strength than die casting but slightly better ductility and machinability. EN AC-47100 F-K has a yield strength of 95 MPa (13.8 ksi) and a tensile strength of 175 MPa (25.4 ksi) — weaker than 86% of aluminum grades. Elongation at break is 2% and the elastic modulus is 74 GPa (10.7 Msi). EN AC-47100 F-K has a density of 2.75 g/cm³ (0.0994 lb/in³), heavier than 67% of aluminum grades. It melts at 540°C (1,004 °F). F is the default condition FabDigit quotes; F-K is available on request or by drawing note.
Limitations
- 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
- Hard to polish — 40/100, worse than 91% of aluminum grades
- Limited ductility — 2%, worse than 87% of aluminum grades
- Low strength — 95 MPa (13.8 ksi), worse than 86% of aluminum grades
EN AC-47100 F-K properties
Typical room-temperature values for EN AC-47100 F-K; 22 are specific to this condition. Other listed values are EN AC-47100 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
EN AC-47100 F-K has a density of 2.75 g/cm³ (0.0994 lb/in³), heavier than 67% of aluminum grades. It melts at 540°C (1,004 °F).
Mechanical13
EN AC-47100 F-K has a yield strength of 95 MPa (13.8 ksi) and a tensile strength of 175 MPa (25.4 ksi) — weaker than 86% of aluminum grades. Elongation at break is 2% and the elastic modulus is 74 GPa (10.7 Msi).
Thermal6
EN AC-47100 F-K is rated for continuous service to 150°C (302 °F). It conducts heat at 126 W/m·K (72.8 BTU/hr·ft·°F), worse than 70% of aluminum grades. Thermal expansion is 20.4 µm/m·K (11.3 µin/in·°F).
Electrical3
EN AC-47100 F-K conducts electricity at 29 % IACS, worse than 78% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (45/100), worse than 62% of aluminum grades.
Sustainability4
Producing a kilogram of EN AC-47100 F-K takes about 150 MJ of energy and emits 11.5 kg of CO₂ — less than 97% of aluminum grades. Typical recycled content is 90%.
Manufacturability8
EN AC-47100 F-K's machinability is fair (50/100, worse than 65% of aluminum grades); weldability fair (45/100); 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-47100 F-K
Is EN AC-47100 easy to machine?
Machines with short chips but the eutectic/primary Si is abrasive — use PCD or coated carbide, high speed, low feed, flood coolant; watch for porosity breaking through in pressure-tight surfaces.
Can EN AC-47100 be welded?
Not recommended for structural fusion welding of die castings (entrapped gas causes blowholes); if required use TIG/MIG with ER4047 filler on thick, low-porosity sections, or use mechanical joining/adhesives.
Can EN AC-47100 be formed, bent or molded?
Excellent high-pressure die-casting alloy: near-eutectic fluidity fills walls down to ~1 mm, low hot-tearing tendency, long die life; not heat-treatable to higher strength and not cold formable.
What surface finishes work on EN AC-47100?
Best finished with chromate-free conversion coating + powder coat/paint, shot blast or trivalent-chrome plating; decorative anodizing gives a dark grey mottled film due to high Si.
EN AC-47100 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 |
|---|---|---|
| Sinear-eutectic, gives fluidity | 10.5 – 13.5 | 12 |
| Fehigh Fe tolerance enables secondary/scrap feedstock | ≤ 1.3 | 0.9 |
| Cu | 0.7 – 1.2 | 0.95 |
| Mn | ≤ 0.55 | 0.3 |
| Mg | ≤ 0.35 | 0.15 |
| Ni | ≤ 0.3 | — |
| Zn | ≤ 0.55 | 0.3 |
| Pb | ≤ 0.2 | — |
| Sn | ≤ 0.1 | — |
| Ti | ≤ 0.2 | — |
| Others (each)total others ≤ 0.25 % | ≤ 0.05 | — |
| Al | balance | — |
EN AC-47100 F-K — frequently asked
What is EN AC-47100 F-K used for?
EN AC-47100 F-K is typically used for thin-wall die castings, covers and housings. In short: economical thin-wall die casting; fe-tolerant secondary alloy; near-eutectic casting fluidity.
What is the yield strength of EN AC-47100 F-K?
EN AC-47100 F-K has a typical yield strength of 95 MPa (13.8 ksi) and a tensile strength of 175 MPa (25.4 ksi) — weaker than 86% of aluminum grades. Strength varies by condition: see the 2 listed tempers.
Is EN AC-47100 F-K easy to machine?
Reasonably — machinability is rated fair (50/100, worse than 65% of aluminum grades). Machines with short chips but the eutectic/primary Si is abrasive — use PCD or coated carbide, high speed, low feed, flood coolant; watch for porosity breaking through in pressure-tight surfaces.
Can EN AC-47100 F-K be welded?
With care — weldability is rated fair (45/100). Not recommended for structural fusion welding of die castings (entrapped gas causes blowholes); if required use TIG/MIG with ER4047 filler on thick, low-porosity sections, or use mechanical joining/adhesives.
What surface finishes work on EN AC-47100 F-K?
Best finished with chromate-free conversion coating + powder coat/paint, shot blast or trivalent-chrome plating; decorative anodizing gives a dark grey mottled film due to high Si.
Can EN AC-47100 F-K be formed, bent or molded?
Excellent high-pressure die-casting alloy: near-eutectic fluidity fills walls down to ~1 mm, low hot-tearing tendency, long die life; not heat-treatable to higher strength and not cold formable.
What is the maximum service temperature of EN AC-47100 F-K?
EN AC-47100 F-K 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 EN AC-47100-F and EN AC-47100 F-K?
F is the default condition — the only condition registered in EN 1706 for this alloy: as-cast high-pressure die castings, used directly with no heat treatment. F-K: occasionally supplied as gravity/permanent-mould castings of the same chemistry; coarser eutectic gives lower strength than die casting but slightly better ductility and machinability. Yield strength is 140 MPa in F versus 95 MPa in F-K.
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 and Selection: Nonferrous Alloys (413.0/A413.0/384.0 data) — ASM International (1990)
- ASM Handbook Vol.15 — Casting — ASM International (2008)
- Secondary die-casting alloy datasheets (Rheinfelden/Trimet/Rio Tinto class AlSi12Cu1(Fe)) — various producers (2022)
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.