Aluminum Sintered 2014
also MPIF 2014
Sintered 2014 (MPIF 2014) is a powder-metallurgy Al-Cu alloy, pressed and sintered to near-net shape and then solution treated and aged in the ACT1, ACT4 and ACT6 classes (Types I–III by density).
Reference datasheet — Sintered 2014 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 ACT6-II condition
Sintered 2014 tempers and conditions
Sintered 2014 is supplied in 9 conditions, soft to hard. ACT6-II is the default FabDigit quotes; the values on this page are for it.
Compare all 9 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
ACT1-2014 Type I | Cheapest condition: as-sintered, lowest density — for lightly loaded brackets, covers and non-structural housings. | 75 | 125 | 5 | 45 HB | 33 % IACS |
ACT1-2014 Type II | As-sintered at intermediate compaction pressure — best cost/strength balance when no heat treatment is wanted. | 90 | 150 | 6 | 50 HB | 35 % IACS |
ACT1-2014 Type III | High-density as-sintered (double-press/repress or high compaction) for the best as-sintered ductility and toughness. | 100 | 170 | 7 | 55 HB | 37 % IACS |
ACT4-2014 Type I | T4 on low-density parts: better strength than as-sintered while keeping some ductility for coining/staking. | 125 | 180 | 3 | 65 HB | 28 % IACS |
ACT4-2014 Type II | Standard T4 condition — good compromise of strength and residual ductility for parts that are sized after heat treatment. | 150 | 215 | 3.5 | 70 HB | 30 % IACS |
ACT4-2014 Type III | Highest-ductility heat-treated condition; use where impact or subsequent coining is required. | 170 | 245 | 4 | 75 HB | 32 % IACS |
ACT6-2014 Type I | T6 on economy-density parts: maximum hardness per unit cost, but very little ductility. | 200 | 220 | 1 | 80 HB | 32 % IACS |
ACT6-IIDefault ACT6-2014 Type II | The workhorse condition for sintered 2014 structural parts: full T6 strength at standard compaction density. | 250 | 270 | 1.5 | 90 HB | 34 % IACS |
ACT6-2014 Type III | Peak-strength sintered 2014: high-density (repressed/sinter-forged) parts approaching wrought 2014-T6 strength levels. | 310 | 330 | 2 | 100 HB | 36 % IACS |
What is Sintered 2014?
Sintered 2014 (MPIF 2014) is a powder-metallurgy Al-Cu alloy, pressed and sintered to near-net shape and then solution treated and aged in the ACT1, ACT4 and ACT6 classes (Types I–III by density). It is used for medium-strength small parts made without extensive machining: default values are 2.55 g/cm³ density, 250 MPa yield, 270 MPa tensile, 1.5% elongation, 90 HB (60 HRB), 62 GPa modulus, 135 W/m·K and 34% IACS, with a 150 °C service limit and 507 °C solidus. Residual porosity limits ductility (elongation 1.5%), fusion weldability (score 18) and corrosion resistance (score 40); sintered 6061 is the alternative when corrosion resistance and toughness matter more than strength. Sintered 2014 has a density of 2.55 g/cm³ (0.0921 lb/in³), lighter than 99% of aluminum grades. It melts at 507°C (945 °F). Sintered 2014 has a yield strength of 250 MPa (36.3 ksi) and a tensile strength of 270 MPa (39.2 ksi) — stronger than 65% of aluminum grades. Elongation at break is 1.5% and the elastic modulus is 62 GPa (8.99 Msi).
What is Sintered 2014 used for?
- automotive P/M brackets
- small structural components
- gears and bushings
- cost-sensitive precision parts
Advantages
- Easy to machine — 78/100, better than 89% of aluminum grades
Limitations
- Hard to polish — 30/100, worse than 100% of aluminum grades
- Low stiffness — 62 GPa (8.99 Msi), worse than 99% of aluminum grades
- Difficult to weld — 18/100, worse than 94% of aluminum grades
- Limited ductility — 1.5%, worse than 91% of aluminum grades
- Limited formability — 8/100, worse than 88% of aluminum grades
Sintered 2014 properties
Typical room-temperature values for Sintered 2014-ACT6-II; bars are the position among aluminum grades.
Physical3
Sintered 2014 has a density of 2.55 g/cm³ (0.0921 lb/in³), lighter than 99% of aluminum grades. It melts at 507°C (945 °F).
Mechanical13
Sintered 2014 has a yield strength of 250 MPa (36.3 ksi) and a tensile strength of 270 MPa (39.2 ksi) — stronger than 65% of aluminum grades. Elongation at break is 1.5% and the elastic modulus is 62 GPa (8.99 Msi).
Thermal6
Sintered 2014 is rated for continuous service to 150°C (302 °F). It conducts heat at 135 W/m·K (78 BTU/hr·ft·°F), worse than 58% of aluminum grades. Thermal expansion is 22.5 µm/m·K (12.5 µin/in·°F).
Electrical3
Sintered 2014 conducts electricity at 34 % IACS, worse than 52% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (40/100), worse than 75% of aluminum grades.
Sustainability4
Producing a kilogram of Sintered 2014 takes about 205 MJ of energy and emits 13.5 kg of CO₂ — more than 76% of aluminum grades. Typical recycled content is 10%.
Manufacturability8
Sintered 2014's machinability is very good (78/100, better than 89% of aluminum grades); weldability poor (18/100); formability not recommended (8/100).
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. Sintered 2014 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with Sintered 2014
Is Sintered 2014 easy to machine?
Machines easily with sharp carbide/PCD tooling and light feeds, but interrupted cutting across pores dulls edges and smears; avoid coolants that soak into porosity unless the part is later impregnated.
Can Sintered 2014 be welded?
Essentially not weldable by fusion — trapped gas in pores blows the weld pool and the Al-Cu chemistry hot-cracks; join by adhesive, mechanical fastening or brazing on impregnated parts.
Can Sintered 2014 be formed, bent or molded?
Formed by uniaxial die compaction of lubricated premix, delubrication and sintering near 590–620 °C in dry N2; density is raised by repressing/sinter-forging, and coining or sizing is used to hit tolerances.
Sintered 2014 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 |
|---|---|---|
| Cumain strengthening addition, admixed or prealloyed | 3.8 – 5 | 4.4 |
| Si | 0.5 – 1.2 | 0.8 |
| Mg | 0.2 – 0.8 | 0.5 |
| Feimpurity limit | ≤ 0.3 | |
| Mnimpurity/optional | ≤ 0.4 | |
| Other, each | ≤ 0.05 | |
| lubricant (admixed wax/stearate)green-state only; burned off during delubrication/sintering | 1 – 1.75 | 1.5 |
| Al | balance |
What surface finishes work on Sintered 2014?
Deburr by vibratory tumbling; resin- or oil-impregnate before plating, anodizing or painting to stop chemical bleed-out; chromate/phosphate conversion coatings and impregnation-plus-hard-anodize are typical for wear surfaces.
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 Sintered 2014 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Trade names
- MPIF 2014
- Also called
- AC2014
How much does Sintered 2014 cost?
Sintered 2014 is a high-cost aluminum ($$$$), pricier than about 78% 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.
Sintered 2014 — frequently asked
What is Sintered 2014 used for?
Sintered 2014 is typically used for automotive P/M brackets, small structural components, gears and bushings and cost-sensitive precision parts. In short: strongest common P/M aluminum; near-net shape, low machining; porosity limits ductility.
What is the yield strength of Sintered 2014?
Sintered 2014 has a typical yield strength of 250 MPa (36.3 ksi) and a tensile strength of 270 MPa (39.2 ksi) — stronger than 65% of aluminum grades. Strength varies by condition: see the 9 listed tempers.
Is Sintered 2014 easy to machine?
Yes — machinability is rated very good (78/100, better than 89% of aluminum grades). Machines easily with sharp carbide/PCD tooling and light feeds, but interrupted cutting across pores dulls edges and smears; avoid coolants that soak into porosity unless the part is later impregnated.
Can Sintered 2014 be welded?
Not readily — weldability is rated poor (18/100). Essentially not weldable by fusion — trapped gas in pores blows the weld pool and the Al-Cu chemistry hot-cracks; join by adhesive, mechanical fastening or brazing on impregnated parts.
What surface finishes work on Sintered 2014?
Deburr by vibratory tumbling; resin- or oil-impregnate before plating, anodizing or painting to stop chemical bleed-out; chromate/phosphate conversion coatings and impregnation-plus-hard-anodize are typical for wear surfaces.
Can Sintered 2014 be formed, bent or molded?
Formed by uniaxial die compaction of lubricated premix, delubrication and sintering near 590–620 °C in dry N2; density is raised by repressing/sinter-forging, and coining or sizing is used to hit tolerances.
What is the maximum service temperature of Sintered 2014?
Sintered 2014 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 Sintered 2014 ACT6-II and Sintered 2014 ACT1-I?
ACT6-II is the default condition — the workhorse condition for sintered 2014 structural parts: full T6 strength at standard compaction density. ACT1-I: cheapest condition: as-sintered, lowest density — for lightly loaded brackets, covers and non-structural housings. Yield strength is 250 MPa in ACT6-II versus 75 MPa in ACT1-I.
How much does Sintered 2014 cost?
Sintered 2014 is a high-cost aluminum ($$$$), pricier than about 78% 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
- ASTM B595 — Sintered Aluminum Structural Parts — ASTM International (2020)
- MPIF Standard 35 — Materials Standards for PM Structural Parts (aluminium alloys) — Metal Powder Industries Federation (2021)
- ASM Handbook Vol. 7 — Powder Metallurgy — ASM International (2015)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys (2014 data) — ASM International (1990)
- Aluminum Association Teal Sheets — 2014 composition limits — The Aluminum Association (2018)
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.