Aluminum ZL201A-F (As fabricated)
Temper
ASTM 201.0
Rarely supplied; only for non-structural parts or as the pre-heat-treatment condition of the casting.
Values for the F condition
Other ZL201A tempers and conditions
ZL201A is listed in 5 conditions; see the grade overview at ZL201A.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
FThis page As fabricated | Rarely supplied; only for non-structural parts or as the pre-heat-treatment condition of the casting. | 95 | 165 | 3 | 60 HB | 36 % IACS |
Solution heat treated and naturally aged | Choose when maximum ductility and toughness matter more than peak strength, e.g. impact-loaded castings. | 200 | 335 | 12 | 85 HB | 120 W/m·K |
Solution heat treated and overaged (stabilized) | Pick for dimensionally stable parts running hot (200–300 °C) or where residual-stress and SCC control outweigh peak strength. | 265 | 345 | 4 | 95 HB | 34 % IACS |
T5Default Cooled from hot working and artificially aged | Standard supply condition for aerospace ZL201A castings: highest strength with acceptable elongation (≥390 MPa / ≥8 %). | 285 | 400 | 10 | 100 HB | 32 % IACS |
Solution heat treated and artificially aged | Used when maximum hardness/strength is wanted and low elongation is tolerable; not the usual GB supply state for ZL201A. | 330 | 420 | 5 | 115 HB | 135 W/m·K |
What is ZL201A-F?
ZL201A-F is ZL201A in the F temper — rarely supplied; only for non-structural parts or as the pre-heat-treatment condition of the casting. ZL201A-F has a yield strength of 95 MPa (13.8 ksi) and a tensile strength of 165 MPa (23.9 ksi) — weaker than 86% of aluminum grades. Elongation at break is 3% and the elastic modulus is 69 GPa (10 Msi). ZL201A-F has a density of 2.83 g/cm³ (0.102 lb/in³), heavier than 91% of aluminum grades. It melts at 547°C (1,017 °F). T5 is the default condition FabDigit quotes; F is available on request or by drawing note.
Limitations
- Needs corrosion protection — 28/100, worse than 99% of aluminum grades
- Limited formability — 8/100, worse than 88% of aluminum grades
- Low strength — 95 MPa (13.8 ksi), worse than 86% of aluminum grades
- Limited ductility — 3%, worse than 79% of aluminum grades
ZL201A-F properties
Typical room-temperature values for ZL201A-F; 22 are specific to this condition. Other listed values are ZL201A reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
ZL201A-F has a density of 2.83 g/cm³ (0.102 lb/in³), heavier than 91% of aluminum grades. It melts at 547°C (1,017 °F).
Mechanical13
ZL201A-F has a yield strength of 95 MPa (13.8 ksi) and a tensile strength of 165 MPa (23.9 ksi) — weaker than 86% of aluminum grades. Elongation at break is 3% and the elastic modulus is 69 GPa (10 Msi).
Thermal6
ZL201A-F is rated for continuous service to 150°C (302 °F). It conducts heat at 145 W/m·K (83.8 BTU/hr·ft·°F), better than 53% of aluminum grades. Thermal expansion is 22.5 µm/m·K (12.5 µin/in·°F).
Electrical3
ZL201A-F conducts electricity at 36 % IACS, better than 55% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is poor (28/100), worse than 99% of aluminum grades.
Sustainability4
Producing a kilogram of ZL201A-F takes about 205 MJ of energy and emits 12.5 kg of CO₂ — more than 76% of aluminum grades. Typical recycled content is 10%.
Manufacturability8
ZL201A-F's machinability is good (60/100, worse than 51% of aluminum grades); weldability poor (30/100); formability not recommended (8/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ZL201A-F
Is ZL201A easy to machine?
Machines well after heat treatment with sharp carbide/PCD tools, high speeds and flood coolant; watch for porosity revealing at finished surfaces.
Can ZL201A be welded?
TIG/MIG repair welding is crack-sensitive because of ~5 % Cu — preheat, use matched Al-Cu filler and re-solution-treat plus re-age where possible.
Can ZL201A be formed, bent or molded?
Sand and permanent-mould casting only; long freezing range means directional solidification, generous risers, chills and filtered gating are needed to avoid hot tears and shrinkage porosity.
What surface finishes work on ZL201A?
Chromic/hard anodize plus primer or chromate conversion for corrosion protection; decorative bright anodizing is poor due to Cu content, so paint or plating is common.
ZL201A 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 |
|---|---|---|
| Cu | 4.8 – 5.3 | 5 |
| Mn | 0.6 – 1 | 0.8 |
| Tigrain refiner | 0.15 – 0.35 | 0.25 |
| Cdadded in some ZL201A/ZL205-type melts to enhance ageing; omitted where Cd is restricted | 0.15 – 0.25 | 0.2 |
| Siimpurity limit, tighter than ZL201 | ≤ 0.06 | — |
| Feimpurity limit | ≤ 0.15 | — |
| Mgimpurity limit | ≤ 0.05 | — |
| Znimpurity limit | ≤ 0.1 | — |
| Niimpurity limit | ≤ 0.05 | — |
| others (each)total impurities ≤ 0.4 % | ≤ 0.05 | — |
| Al | balance | — |
ZL201A-F — frequently asked
What is ZL201A-F used for?
ZL201A-F is typically used for aerospace structural castings, landing gear components, aircraft fittings and lugs, high-load brackets and yokes, aerospace pump and gearbox housings and fatigue-critical machinery castings. In short: highest-strength cast Al-Cu; high-purity, fatigue-critical grade; 10 % elongation after heat treat.
What is the yield strength of ZL201A-F?
ZL201A-F has a typical yield strength of 95 MPa (13.8 ksi) and a tensile strength of 165 MPa (23.9 ksi) — weaker than 86% of aluminum grades. Strength varies by condition: see the 5 listed tempers.
Is ZL201A-F easy to machine?
Reasonably — machinability is rated good (60/100, worse than 51% of aluminum grades). Machines well after heat treatment with sharp carbide/PCD tools, high speeds and flood coolant; watch for porosity revealing at finished surfaces.
Can ZL201A-F be welded?
Not readily — weldability is rated poor (30/100). TIG/MIG repair welding is crack-sensitive because of ~5 % Cu — preheat, use matched Al-Cu filler and re-solution-treat plus re-age where possible.
What surface finishes work on ZL201A-F?
Chromic/hard anodize plus primer or chromate conversion for corrosion protection; decorative bright anodizing is poor due to Cu content, so paint or plating is common.
Can ZL201A-F be formed, bent or molded?
Sand and permanent-mould casting only; long freezing range means directional solidification, generous risers, chills and filtered gating are needed to avoid hot tears and shrinkage porosity.
What is the maximum service temperature of ZL201A-F?
ZL201A-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.
What is the difference between ZL201A-T5 and ZL201A-F?
T5 is the default condition — standard supply condition for aerospace ZL201A castings: highest strength with acceptable elongation (≥390 MPa / ≥8 %). F: rarely supplied; only for non-structural parts or as the pre-heat-treatment condition of the casting. Yield strength is 285 MPa in T5 versus 95 MPa in F.
Sources
- GB/T 15115 / GB/T 9438 (related product standards) — SAC (2013)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- ASM Handbook Vol.13B — Corrosion: Materials — ASM International (2005)
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.