Aluminum 4007
AA 4007 · UNS A94007 · EN AW-4007, AlSi1.5Mn
4007 is a low-silicon, manganese-bearing wrought Al-Si alloy (EN AW-4007, AlSi1.5Mn, UNS A94007) rolled as thin-gauge sheet, strip and foil in O, H111, H12–H18, H22–H28 and F.
Reference datasheet — 4007 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 O condition
4007 tempers and conditions
4007 is supplied in 11 conditions, soft to hard. O is the default FabDigit quotes; the values on this page are for it.
Compare all 11 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
ODefault Annealed | Pick for maximum formability: deep drawing, stretch forming and foil/clad-sheet stock before brazing. | 65 | 150 | 27 | 42 HB | 40 % IACS |
As fabricated | Mill condition for hot-rolled plate and re-roll coil where properties are not guaranteed. | 75 | 155 | 22 | 44 HB | 40 % IACS |
Slightly strain hardened | Standard as-supplied condition for EN sheet/plate that has seen only levelling or straightening after annealing; nearly O formability with slightly higher yield. | 85 | 160 | 22 | 46 HB | 40 % IACS |
Strain hardened and partially annealed, quarter hard | Stabilised quarter-hard strip when better ductility than H12 at similar strength is required. | 135 | 180 | 11 | 50 HB | 40 % IACS |
Strain hardened, quarter hard | Choose when moderate bending/roll-forming ability must be combined with roughly double the annealed yield strength. | 150 | 185 | 9 | 52 HB | 39 % IACS |
Strain hardened and partially annealed, half hard | The usual half-hard supply condition for formed sheet parts; more bend-friendly than H14. | 160 | 200 | 8 | 56 HB | 39.5 % IACS |
Strain hardened, half hard | General-purpose semi-hard strip for lightly loaded panels and fins that need only gentle bends. | 175 | 205 | 6 | 58 HB | 39 % IACS |
Strain hardened and partially annealed, three-quarter hard | High-strength stabilised strip with residual bendability for roll-formed profiles. | 185 | 220 | 5 | 62 HB | 39 % IACS |
Strain hardened, three-quarter hard | For flat or roll-formed parts needing high strength and stiffness with minimal forming. | 200 | 225 | 4 | 64 HB | — |
Strain hardened and partially annealed, full hard | Full-hard stabilised thin strip/foil for flat, high-strength applications. | 220 | 245 | 3 | 68 HB | 39 % IACS |
Strain hardened, full hard | Maximum cold-worked strength; used for thin strip and foil where forming is limited to slitting and light corrugation. | 230 | 250 | 3 | 70 HB | 158 W/m·K |
What is 4007?
4007 is a low-silicon, manganese-bearing wrought Al-Si alloy (EN AW-4007, AlSi1.5Mn, UNS A94007) rolled as thin-gauge sheet, strip and foil in O, H111, H12–H18, H22–H28 and F. Engineers specify it where plain 1000 series or 4006 stock is too weak: the default condition gives 150 MPa tensile, 65 MPa yield, 27% elongation, 42 HB, 165 W/m·K and a formability score of 88, so fin and foil profiles still form cleanly. It is not heat treatable, electrical conductivity drops to 40% IACS, and service is limited to about 175 °C. Where higher post-braze strength and corrosion resistance are needed, 4015 is the nearer choice. 4007 has a density of 2.73 g/cm³ (0.0986 lb/in³), heavier than 61% of aluminum grades. It melts at 625°C (1,157 °F). 4007 has a yield strength of 65 MPa (9.43 ksi) and a tensile strength of 150 MPa (21.8 ksi) — weaker than 92% of aluminum grades. Elongation at break is 27% and the elastic modulus is 70 GPa (10.2 Msi).
What is 4007 used for?
- foil stock
- fin stock
- thin gauge sheet
Advantages
- Ductile — tolerates forming and impact — 27%, better than 95% of aluminum grades
- Forms and bends easily — 88/100, better than 92% of aluminum grades
- High service temperature — 175°C (347 °F), better than 83% of aluminum grades
- Conducts heat well — 165 W/m·K (95.3 BTU/hr·ft·°F), better than 79% of aluminum grades
Limitations
- Low strength — 65 MPa (9.43 ksi), worse than 92% of aluminum grades
- Hard to polish — 45/100, worse than 76% of aluminum grades
4007 properties
Typical room-temperature values for 4007-O; bars are the position among aluminum grades.
Physical3
4007 has a density of 2.73 g/cm³ (0.0986 lb/in³), heavier than 61% of aluminum grades. It melts at 625°C (1,157 °F).
Mechanical12
4007 has a yield strength of 65 MPa (9.43 ksi) and a tensile strength of 150 MPa (21.8 ksi) — weaker than 92% of aluminum grades. Elongation at break is 27% and the elastic modulus is 70 GPa (10.2 Msi).
Thermal6
4007 is rated for continuous service to 175°C (347 °F). It conducts heat at 165 W/m·K (95.3 BTU/hr·ft·°F), better than 79% of aluminum grades. Thermal expansion is 22 µm/m·K (12.2 µin/in·°F).
Electrical3
4007 conducts electricity at 40 % IACS, better than 72% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is good (58/100), better than 57% of aluminum grades.
Sustainability4
Producing a kilogram of 4007 takes about 200 MJ of energy and emits 12 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 35%.
Manufacturability8
4007's machinability is fair (45/100, worse than 72% of aluminum grades); weldability good (62/100); formability excellent (88/100).
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. 4007 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with 4007
Is 4007 easy to machine?
Machines like a soft Al-Mn sheet alloy: use polished high-rake carbide, high speed and flood lubrication to avoid built-up edge; hard tempers chip-break better than O.
Can 4007 be welded?
GTAW/GMAW with 4043 or 4047 filler and resistance/laser welding work well; avoid autogenous fusion of thin cold-worked strip because of hot-cracking and full local softening of the HAZ.
Can 4007 be formed, bent or molded?
Excellent cold formability in O/H111 (deep drawing, fin corrugating, bending to tight radii); H16–H18 tolerate only large-radius bends and should be bent across the rolling direction.
4007 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 |
|---|---|---|
| Siprimary strengthening/eutectic former | 1 – 1.7 | 1.4 |
| Fe | 0.4 – 1 | 0.7 |
| Cu | ≤ 0.2 | 0.05 |
| Mndispersoid former, raises strength | 0.8 – 1.5 | 1.2 |
| Mg | ≤ 0.2 | 0.05 |
| Cr | 0.05 – 0.25 | 0.15 |
| Nithermal stability | 0.15 – 0.7 | 0.35 |
| Zn | ≤ 0.1 | |
| Ti | ≤ 0.1 | |
| Others (each)0.15 % total | ≤ 0.05 | |
| Al | balance |
What surface finishes work on 4007?
Prefer chemical conversion coating, chromate-free pretreat plus paint, or brazing-flux compatible surfaces; decorative anodizing gives dark grey mottling because of Si/Mn/Ni intermetallics.
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 4007 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- A94007
- EN / DIN / Werkstoff-Nr.
- AW-4007AlSi1.5Mn
How much does 4007 cost?
4007 is a premium-cost aluminum ($$$), cheaper than about 51% 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.
4007 — frequently asked
What is 4007 used for?
4007 is typically used for foil stock, fin stock and thin gauge sheet. In short: stronger than 1000-series foil; high-formability fin alloy; not heat treatable.
What is the yield strength of 4007?
4007 has a typical yield strength of 65 MPa (9.43 ksi) and a tensile strength of 150 MPa (21.8 ksi) — weaker than 92% of aluminum grades. Strength varies by condition: see the 11 listed tempers.
Is 4007 easy to machine?
Reasonably — machinability is rated fair (45/100, worse than 72% of aluminum grades). Machines like a soft Al-Mn sheet alloy: use polished high-rake carbide, high speed and flood lubrication to avoid built-up edge; hard tempers chip-break better than O.
Can 4007 be welded?
Yes — weldability is rated good (62/100). GTAW/GMAW with 4043 or 4047 filler and resistance/laser welding work well; avoid autogenous fusion of thin cold-worked strip because of hot-cracking and full local softening of the HAZ.
What surface finishes work on 4007?
Prefer chemical conversion coating, chromate-free pretreat plus paint, or brazing-flux compatible surfaces; decorative anodizing gives dark grey mottling because of Si/Mn/Ni intermetallics.
Can 4007 be formed, bent or molded?
Excellent cold formability in O/H111 (deep drawing, fin corrugating, bending to tight radii); H16–H18 tolerate only large-radius bends and should be bent across the rolling direction.
What is the maximum service temperature of 4007?
4007 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 4007-O and 4007-H18?
O is the default condition — pick for maximum formability: deep drawing, stretch forming and foil/clad-sheet stock before brazing. H18: maximum cold-worked strength; used for thin strip and foil where forming is limited to slitting and light corrugation. Yield strength is 65 MPa in O versus 230 MPa in H18.
How much does 4007 cost?
4007 is a premium-cost aluminum ($$$), cheaper than about 51% 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
- International Alloy Designations and Chemical Composition Limits for Wrought Aluminum (Teal Sheets) — The Aluminum Association (2018)
- EN 573-3 Aluminium and aluminium alloys — Chemical composition and form of wrought products — 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)
- ASM Handbook Vol.13B — Corrosion: Materials — ASM International (2005)
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.