Aluminum ADC1-T5
Temper
JIS ADC1
T5 = cooled from hot working and artificially aged
Low-temperature age (≈200–230 °C) used to stabilise dimensions and relieve casting stress before precision machining; small hardness gain, slight ductility loss.
Values for the T5 condition
Other ADC1 tempers and conditions
ADC1 is listed in 2 conditions; see the grade overview at ADC1.
- F
- T5
Compare all 2 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
FDefault As fabricated | Standard supply condition for ADC1 die castings; no heat treatment, best for thin-wall pressure-tight housings. | 145 | 280 | 2.5 | 75 HB | 31 % IACS |
T5This page Cooled from hot working and artificially aged | Low-temperature age (≈200–230 °C) used to stabilise dimensions and relieve casting stress before precision machining; small hardness gain, slight ductility loss. | 160 | 285 | 2 | 80 HB | 34 % IACS |
What is ADC1-T5?
ADC1-T5 is ADC1 in the T5 temper — low-temperature age (≈200–230 °C) used to stabilise dimensions and relieve casting stress before precision machining; small hardness gain, slight ductility loss. ADC1-T5 has a yield strength of 160 MPa (23.2 ksi) and a tensile strength of 285 MPa (41.3 ksi) — weaker than 61% of aluminum grades. Elongation at break is 2% and the elastic modulus is 71 GPa (10.3 Msi). ADC1-T5 has a density of 2.66 g/cm³ (0.0961 lb/in³), lighter than 84% of aluminum grades. It melts at 574°C (1,065 °F). F is the default condition FabDigit quotes; T5 is available on request or by drawing note.
Advantages
- High service temperature — 175°C (347 °F), better than 83% of aluminum grades
Limitations
- Limited formability — 4/100, worse than 99% of aluminum grades
- Low fracture toughness — 14 MPa·√m (12.7 ksi·√in), worse than 97% of aluminum grades
- Hard to polish — 40/100, worse than 91% of aluminum grades
- Limited ductility — 2%, worse than 87% of aluminum grades
- Difficult to machine — 37/100, worse than 84% of aluminum grades
ADC1-T5 properties
Typical room-temperature values for ADC1-T5; 22 are specific to this condition. Other listed values are ADC1 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
ADC1-T5 has a density of 2.66 g/cm³ (0.0961 lb/in³), lighter than 84% of aluminum grades. It melts at 574°C (1,065 °F).
Mechanical13
ADC1-T5 has a yield strength of 160 MPa (23.2 ksi) and a tensile strength of 285 MPa (41.3 ksi) — weaker than 61% of aluminum grades. Elongation at break is 2% and the elastic modulus is 71 GPa (10.3 Msi).
Thermal6
ADC1-T5 is rated for continuous service to 175°C (347 °F). It conducts heat at 128 W/m·K (74 BTU/hr·ft·°F), worse than 69% of aluminum grades. Thermal expansion is 20.4 µm/m·K (11.3 µin/in·°F).
Electrical3
ADC1-T5 conducts electricity at 34 % IACS, worse than 52% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is good (58/100), better than 57% of aluminum grades.
Sustainability4
Producing a kilogram of ADC1-T5 takes about 195 MJ of energy and emits 12 kg of CO₂ — less than 86% of aluminum grades. Typical recycled content is 85%.
Manufacturability8
ADC1-T5's machinability is fair (37/100, worse than 84% of aluminum grades); weldability fair (35/100); formability not recommended (4/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ADC1-T5
Is ADC1 easy to machine?
Use PCD or polished carbide with high speed / light feed and flood coolant — eutectic Si is abrasive and tool life is roughly half that of ADC12 or 6061.
Can ADC1 be welded?
Fusion welding of die castings is unreliable (entrapped gas blows the weld); use ER4047/ER4145 filler for repair, or design for mechanical/adhesive joining and vacuum die casting when welding is mandatory.
Can ADC1 be formed, bent or molded?
High-pressure die casting only: outstanding fluidity fills walls down to ~1 mm, low shrinkage and excellent pressure tightness; keep die temperature and vacuum/venting controlled to limit porosity.
What surface finishes work on ADC1?
Best finished with chromate-free conversion coating plus powder coat or paint; decorative anodizing is not recommended (high Si gives a grey/blotchy film), and shot blast plus impregnation is common for leak-tight housings.
ADC1 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 silicon — source of fluidity and pressure tightness | 11 – 13 | 12 |
| Fedie-casting iron level; prevents die soldering | ≤ 1.3 | 0.9 |
| Cu | ≤ 1 | 0.3 |
| Mn | ≤ 0.3 | 0.2 |
| Mg | ≤ 0.3 | 0.1 |
| Zn | ≤ 0.5 | 0.2 |
| Ni | ≤ 0.5 | 0.05 |
| Sn | ≤ 0.1 | 0.02 |
| Al | balance | — |
ADC1-T5 — frequently asked
What is ADC1-T5 used for?
ADC1-T5 is typically used for thin-wall die castings, pressure-tight housings and hydraulic parts. In short: best pressure tightness; thin-wall casting specialist; most abrasive ADC to machine.
What is the yield strength of ADC1-T5?
ADC1-T5 has a typical yield strength of 160 MPa (23.2 ksi) and a tensile strength of 285 MPa (41.3 ksi) — weaker than 61% of aluminum grades. Strength varies by condition: see the 2 listed tempers.
Is ADC1-T5 easy to machine?
Not especially — machinability is rated fair (37/100, worse than 84% of aluminum grades). Use PCD or polished carbide with high speed / light feed and flood coolant — eutectic Si is abrasive and tool life is roughly half that of ADC12 or 6061.
Can ADC1-T5 be welded?
With care — weldability is rated fair (35/100). Fusion welding of die castings is unreliable (entrapped gas blows the weld); use ER4047/ER4145 filler for repair, or design for mechanical/adhesive joining and vacuum die casting when welding is mandatory.
What surface finishes work on ADC1-T5?
Best finished with chromate-free conversion coating plus powder coat or paint; decorative anodizing is not recommended (high Si gives a grey/blotchy film), and shot blast plus impregnation is common for leak-tight housings.
Can ADC1-T5 be formed, bent or molded?
High-pressure die casting only: outstanding fluidity fills walls down to ~1 mm, low shrinkage and excellent pressure tightness; keep die temperature and vacuum/venting controlled to limit porosity.
What is the maximum service temperature of ADC1-T5?
ADC1-T5 is rated for continuous use to about 175°C (347 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between ADC1-F and ADC1-T5?
F is the default condition — standard supply condition for ADC1 die castings; no heat treatment, best for thin-wall pressure-tight housings. T5: low-temperature age (≈200–230 °C) used to stabilise dimensions and relieve casting stress before precision machining; small hardness gain, slight ductility loss. Yield strength is 145 MPa in F versus 160 MPa in T5.
Sources
- JIS H 5302 Aluminium alloy die castings — JSA (2006)
- GB/T 15115 (YL102) — SAC (2009)
- ASM Handbook Vol.2: Properties and Selection — Nonferrous Alloys (A413.0) — ASM International (1990)
- Aluminum Association Pink Sheets — Designations and Chemical Composition Limits for Aluminum Alloys in the Form of Castings and Ingot — The Aluminum Association (2018)
- NADCA Product Specification Standards for Die Castings — North American Die Casting Association (2018)
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.