Aluminum 1050A
AA 1050A · EN AW-1050A, Al99.5 · BS 1B
1050A is a commercially pure wrought aluminum grade (99.5% Al minimum) in the EN 573 1000-series family, strengthened only by cold work and held to tighter impurity limits than 1050.
Reference datasheet — 1050A 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 H14 condition
1050A tempers and conditions
1050A is supplied in 13 conditions, soft to hard. H14 is the default FabDigit quotes; the values on this page are for it.
Compare all 13 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Maximum ductility for deep drawing, spinning, roll forming and complex bending. | 28 | 78 | 40 | 20 HB | 61.8 % IACS |
Slightly strain hardened | Near-O condition arising from levelling/straightening after annealing; use where O-temper properties are wanted on flattened coil or plate. | 32 | 80 | 35 | 21 HB | 61.5 % IACS |
Strain hardened from hot working only | Hot-rolled plate or extrusion with guaranteed minima; the usual temper for thick 1050A plate. | 40 | 85 | 28 | 23 HB | 61.5 % IACS |
As fabricated | Hot-rolled/extruded stock with no mechanical property guarantee; pick for downstream forming or remelt-tolerant parts. | 45 | 90 | 25 | 22 HB | 61.5 % IACS |
Strain hardened and partially annealed, quarter hard | Back-annealed 1/4-hard temper: same strength class as H12 but with better bend ductility and stability. | 70 | 100 | 14 | 26 HB | 61.3 % IACS |
Strain hardened, quarter hard | Light cold work for a small strength gain while keeping good bendability. | 80 | 100 | 12 | 26 HB | 61.2 % IACS |
Strain hardened and partially annealed, half hard | Most common half-hard temper for coil that must still be bent or profiled after slitting. | 90 | 115 | 10 | 30 HB | 61.1 % IACS |
H14Default Strain hardened, half hard | The default stock condition for 1050A sheet and coil: usable stiffness/flatness with enough ductility for bending and roll forming. | 105 | 115 | 8 | 30 HB | 61 % IACS |
Strain hardened and partially annealed, three-quarter hard | Three-quarter-hard back-annealed strip for profiled sheet needing higher strength with controlled bending. | 110 | 135 | 6 | 35 HB | 61 % IACS |
Strain hardened, three-quarter hard | Higher strength strip for shallow forming, stiffened panels and shutter/roofing profiles. | 125 | 135 | 5 | 35 HB | 61 % IACS |
Strain hardened and partially annealed, full hard | Full-hard back-annealed temper for thin strip/foil where H18 strength is wanted with slightly more consistent ductility. | 130 | 155 | 5 | 38 HB | 60.8 % IACS |
Strain hardened, full hard | Full-hard strip and foil stock: maximum strength and flatness, minimum bend ductility. | 145 | 155 | 4 | 39 HB | 60.8 % IACS |
Strain hardened, extra hard | Extra-hard thin strip, foil and drawn wire where maximum as-rolled strength and springback are required. | 165 | 175 | 3 | 42 HB | 60.5 % IACS |
What is 1050A?
1050A is a commercially pure wrought aluminum grade (99.5% Al minimum) in the EN 573 1000-series family, strengthened only by cold work and held to tighter impurity limits than 1050. It is used for spinning, deep drawing and general fabrication where formability, 229 W/m·K thermal conductivity and 61% IACS electrical conductivity matter more than strength; common forms are sheet, strip, foil, plate and simple extrusions in tempers F through H19. Strength is low (105 MPa yield, 115 MPa tensile in the default temper, 30 HB) and it is not heat treatable, with cold-worked tempers softening above about 120 °C service. Where more strength is needed with similar corrosion behaviour, 3003 is the usual step up. 1050A has a density of 2.71 g/cm³ (0.0977 lb/in³), lighter than 54% of aluminum grades. It melts at 646°C (1,195 °F). 1050A has a yield strength of 105 MPa (15.2 ksi) and a tensile strength of 115 MPa (16.7 ksi) — weaker than 84% of aluminum grades. Elongation at break is 8% and the elastic modulus is 69 GPa (10 Msi).
What is 1050A used for?
- cookware
- spun components
- lighting reflectors
- chemical equipment
- roofing sheet
Advantages
- Conducts heat well — 229 W/m·K (132.3 BTU/hr·ft·°F), better than 96% of aluminum grades
- High electrical conductivity — 61 % IACS, better than 96% of aluminum grades
- Polishes to a fine finish — 85/100, better than 96% of aluminum grades
- Readily welded — 92/100, better than 95% of aluminum grades
- Forms and bends easily — 78/100, better than 87% of aluminum grades
Limitations
- Difficult to machine — 32/100, worse than 89% of aluminum grades
- Low strength — 105 MPa (15.2 ksi), worse than 84% of aluminum grades
- Limited service temperature — 120°C (248 °F), worse than 79% of aluminum grades
1050A properties
Typical room-temperature values for 1050A-H14; bars are the position among aluminum grades.
Physical3
1050A has a density of 2.71 g/cm³ (0.0977 lb/in³), lighter than 54% of aluminum grades. It melts at 646°C (1,195 °F).
Mechanical11
1050A has a yield strength of 105 MPa (15.2 ksi) and a tensile strength of 115 MPa (16.7 ksi) — weaker than 84% of aluminum grades. Elongation at break is 8% and the elastic modulus is 69 GPa (10 Msi).
Thermal6
1050A is rated for continuous service to 120°C (248 °F). It conducts heat at 229 W/m·K (132.3 BTU/hr·ft·°F), better than 96% of aluminum grades. Thermal expansion is 23.6 µm/m·K (13.1 µin/in·°F).
Electrical3
1050A conducts electricity at 61 % IACS, better than 96% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (72/100), better than 83% of aluminum grades.
Sustainability4
Producing a kilogram of 1050A takes about 200 MJ of energy and emits 12.5 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 15%.
Manufacturability8
1050A's machinability is poor (32/100, worse than 89% of aluminum grades); weldability excellent (92/100); formability very good (78/100).
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. 1050A is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 1050A
Is 1050A easy to machine?
Very soft and gummy — use polished high-rake carbide tools, high surface speed, generous chip clearance and lubricating coolant to prevent built-up edge; harder H16–H19 tempers cut cleaner.
Can 1050A be welded?
Readily TIG/MIG welded with 1100/1188 or 4043 filler and resistance/friction-stir welded; the HAZ reverts to O-temper strength so design joints for annealed properties.
Can 1050A be formed, bent or molded?
Outstanding cold formability — deep drawing, metal spinning, roll forming and tight bends (near 0T in O temper); interanneal at 340–410 °C when severe multi-stage drawing is needed.
1050A 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.
| Element | Spec limit (wt %) |
|---|---|
| Si | ≤ 0.25 |
| Fe | ≤ 0.4 |
| Cu | ≤ 0.05 |
| Mn | ≤ 0.05 |
| Mg | ≤ 0.05 |
| Zn | ≤ 0.07 |
| Ti | ≤ 0.05 |
| Others (each)total others 0.03 max per EN 573-3 | ≤ 0.03 |
| Al99.50 % Al minimum | ≥ 99.5 (balance) |
What surface finishes work on 1050A?
Takes bright, clear and dyed anodizing exceptionally well and can be chemically brightened for reflectors; also easy to chromate/conversion coat, paint or electropolish, but soft surfaces mar easily.
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 1050A in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- AW-1050AAl99.53.0255
- BS
- 1B
How much does 1050A cost?
1050A is a standard-cost aluminum ($$), cheaper than about 71% 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.
1050A — frequently asked
What is 1050A used for?
1050A is typically used for cookware, spun components, lighting reflectors, chemical equipment and roofing sheet. In short: tighter-purity European 1050; very high cold formability; 61% IACS conductivity.
What is the yield strength of 1050A?
1050A has a typical yield strength of 105 MPa (15.2 ksi) and a tensile strength of 115 MPa (16.7 ksi) — weaker than 84% of aluminum grades. Strength varies by condition: see the 13 listed tempers.
Is 1050A easy to machine?
Not especially — machinability is rated poor (32/100, worse than 89% of aluminum grades). Very soft and gummy — use polished high-rake carbide tools, high surface speed, generous chip clearance and lubricating coolant to prevent built-up edge; harder H16–H19 tempers cut cleaner.
Can 1050A be welded?
Yes — weldability is rated excellent (92/100). Readily TIG/MIG welded with 1100/1188 or 4043 filler and resistance/friction-stir welded; the HAZ reverts to O-temper strength so design joints for annealed properties.
What surface finishes work on 1050A?
Takes bright, clear and dyed anodizing exceptionally well and can be chemically brightened for reflectors; also easy to chromate/conversion coat, paint or electropolish, but soft surfaces mar easily.
Can 1050A be formed, bent or molded?
Outstanding cold formability — deep drawing, metal spinning, roll forming and tight bends (near 0T in O temper); interanneal at 340–410 °C when severe multi-stage drawing is needed.
What is the maximum service temperature of 1050A?
1050A is rated for continuous use to about 120°C (248 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 1050A-H14 and 1050A-O?
H14 is the default condition — the default stock condition for 1050A sheet and coil: usable stiffness/flatness with enough ductility for bending and roll forming. O: maximum ductility for deep drawing, spinning, roll forming and complex bending. Yield strength is 105 MPa in H14 versus 28 MPa in O.
How much does 1050A cost?
1050A is a standard-cost aluminum ($$), cheaper than about 71% 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
- EN 573-3 Aluminium and aluminium alloys — Chemical composition — CEN (2019)
- EN 485-2 Aluminium and aluminium alloys — Sheet, strip and plate: mechanical properties — CEN (2016)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys — ASM International (1990)
- International Alloy Designations and Chemical Composition Limits (Teal Sheets) — The Aluminum Association (2018)
- EN AW-1050A rolled products datasheet — Constellium / Hydro (2022)
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.