Aluminum ATP-5-F (As fabricated)
Temper
Choose only for rough blanks or when the buyer will machine and stress-relieve in house; flatness and residual stress are not guaranteed.
Values for the F condition
Other ATP-5 tempers and conditions
ATP-5 is listed in 2 conditions; see the grade overview at ATP-5.
- F
- STD
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
FThis page As fabricated | Choose only for rough blanks or when the buyer will machine and stress-relieve in house; flatness and residual stress are not guaranteed. | 105 | 160 | 3 | 63 HB | 40 % IACS |
As-cast, thermally stress-relieved and precision two-side machined plate | Default and essentially only commercial supply condition: low-stress cast plate machined to tight flatness/thickness for jigs, fixtures and mould bases. | 110 | 165 | 3 | 65 HB | 40 % IACS |
What is ATP-5-F?
ATP-5-F is ATP-5 in the F temper — choose only for rough blanks or when the buyer will machine and stress-relieve in house; flatness and residual stress are not guaranteed. ATP-5-F has a yield strength of 105 MPa (15.2 ksi) and a tensile strength of 160 MPa (23.2 ksi) — weaker than 84% of aluminum grades. Elongation at break is 3% and the elastic modulus is 71 GPa (10.3 Msi). ATP-5-F has a density of 2.78 g/cm³ (0.1 lb/in³), heavier than 74% of aluminum grades. It melts at 580°C (1,076 °F).
Advantages
- Easy to machine — 88/100, better than 96% of aluminum grades
Limitations
- Hard to polish — 35/100, worse than 98% of aluminum grades
- Low strength — 105 MPa (15.2 ksi), worse than 84% of aluminum grades
- Limited formability — 10/100, worse than 80% of aluminum grades
- Limited ductility — 3%, worse than 79% of aluminum grades
ATP-5-F properties
Typical room-temperature values for ATP-5-F; 21 are specific to this condition. Other listed values are ATP-5 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
ATP-5-F has a density of 2.78 g/cm³ (0.1 lb/in³), heavier than 74% of aluminum grades. It melts at 580°C (1,076 °F).
Mechanical11
ATP-5-F has a yield strength of 105 MPa (15.2 ksi) and a tensile strength of 160 MPa (23.2 ksi) — weaker than 84% of aluminum grades. Elongation at break is 3% and the elastic modulus is 71 GPa (10.3 Msi).
Thermal6
ATP-5-F is rated for continuous service to 150°C (302 °F). It conducts heat at 142 W/m·K (82 BTU/hr·ft·°F), better than 51% of aluminum grades. Thermal expansion is 24 µm/m·K (13.3 µin/in·°F).
Electrical3
ATP-5-F conducts electricity at 40 % IACS, better than 72% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (52/100), worse than 55% of aluminum grades.
Sustainability4
Producing a kilogram of ATP-5-F takes about 200 MJ of energy and emits 12 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 60%.
Manufacturability8
ATP-5-F's machinability is excellent (88/100, better than 96% of aluminum grades); weldability fair (50/100); formability not recommended (10/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ATP-5-F
Is ATP-5 easy to machine?
Machines very freely with sharp polished-flute carbide tools and high speeds; low residual stress means minimal movement after heavy pocketing, but expect slightly abrasive cast surface skin on the first cut.
Can ATP-5 be welded?
TIG/MIG weldable with 5356 filler for repairs only — casting porosity causes gas pick-up and welds are not strength- or leak-rated.
Can ATP-5 be formed, bent or molded?
Not a forming stock: elongation of ~3 % means it will crack on bending or spinning; use only in the flat machined state.
What surface finishes work on ATP-5?
Bead blast, paint or hardcoat for wear surfaces; decorative anodizing gives mottled colour, and vacuum-tight surfaces may need impregnation.
ATP-5 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 |
|---|---|---|
| Mgprincipal alloying element of the Al-Mg cast tooling-plate class; confirm on mill certificate | 0.6 – 1.3 | 1 |
| Sitypical max | ≤ 0.4 | 0.2 |
| Fetypical max | ≤ 0.5 | 0.3 |
| Cutypical max | ≤ 0.3 | 0.1 |
| Mntypical max | ≤ 0.3 | 0.1 |
| Zntypical max | ≤ 0.3 | 0.1 |
| Tigrain refiner | ≤ 0.2 | 0.05 |
| Al | balance | — |
ATP-5-F — frequently asked
What is ATP-5-F used for?
ATP-5-F is typically used for vacuum platens, index and locating plates, inspection and checking fixtures, mould base and die set plates, semiconductor equipment base plates and packaging machinery frame plates. In short: stress-relieved cast tool plate.
What is the yield strength of ATP-5-F?
ATP-5-F has a typical yield strength of 105 MPa (15.2 ksi) and a tensile strength of 160 MPa (23.2 ksi) — weaker than 84% of aluminum grades. Strength varies by condition: see the 2 listed tempers.
Is ATP-5-F easy to machine?
Yes — machinability is rated excellent (88/100, better than 96% of aluminum grades). Machines very freely with sharp polished-flute carbide tools and high speeds; low residual stress means minimal movement after heavy pocketing, but expect slightly abrasive cast surface skin on the first cut.
Can ATP-5-F be welded?
With care — weldability is rated fair (50/100). TIG/MIG weldable with 5356 filler for repairs only — casting porosity causes gas pick-up and welds are not strength- or leak-rated.
What surface finishes work on ATP-5-F?
Bead blast, paint or hardcoat for wear surfaces; decorative anodizing gives mottled colour, and vacuum-tight surfaces may need impregnation.
Can ATP-5-F be formed, bent or molded?
Not a forming stock: elongation of ~3 % means it will crack on bending or spinning; use only in the flat machined state.
What is the maximum service temperature of ATP-5-F?
ATP-5-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.
Can FabDigit make parts in ATP-5-F?
Yes — ATP-5-F is available for CNC machining; every part is priced by an engineer rather than instantly. Upload a STEP file to get a price and a DFM check.
Sources
- ATP-5 cast aluminium tooling plate data sheet — Alimex GmbH / Alimex America (2023)
- Cast aluminium tooling plate (MIC-6 / ALCA 5 class) property sheets — Arconic / Clinton Aluminum (2022)
- 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.