Aluminum 7005 As Welded
Finish state
AA 7005 · UNS A97005 · EN AW-7005, AW 7005
Design condition for welded 7005 structures — HAZ recovers a large part of parent strength by natural aging without post-weld heat treatment.
Values for the As Welded condition
Other 7005 tempers and conditions
7005 is listed in 8 conditions; see the grade overview at 7005.
Compare all 8 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Softest condition, chosen for severe bending/forming or deep drawing before a later solution treatment and age. | 85 | 195 | 20 | 45 HB | 45 % IACS |
As WeldedThis page As-welded HAZ (naturally re-aged 30 days) | Design condition for welded 7005 structures — HAZ recovers a large part of parent strength by natural aging without post-weld heat treatment. | 205 | 290 | 10 | 78 HB | 42 % IACS |
Solution heat treated and overaged for stress-corrosion resistance | Over-aged variant traded ~10–15 % strength for markedly better stress-corrosion and exfoliation resistance in marine/humid service. | 255 | 310 | 14 | 85 HB | 44 % IACS |
Cooled from hot working and artificially aged | Press-quenched and aged: cheapest route to near-T6 strength in thin-wall 7005 extrusions with less distortion. | 285 | 330 | 12 | 90 HB | 40 % IACS |
Solution heat treated and artificially aged | Standard stocked condition: full precipitation strength for welded frames, structural extrusions and machined brackets. | 295 | 350 | 12 | 94 HB | 40 % IACS |
Solution treated, stress-relieved by stretching, aged | Stretch-relieved extruded profiles for machined parts where residual-stress distortion must be minimized. | 300 | 350 | 11 | 95 HB | 40 % IACS |
T6, stress relieved by stretching, minor straightening | Same as T6510 but with allowance for minor straightening — usual condition for long precision bar and profile stock. | 300 | 350 | 11 | 95 HB | 40 % IACS |
Press quenched, over-aged/stabilized | Proprietary two-step age used on welded bicycle and sports frames — highest 7005 strength with improved SCC stability after welding. | 345 | 393 | 15 | 105 HB | 41 % IACS |
What is 7005 As Welded?
7005 As Welded is 7005 supplied in the As Welded condition — design condition for welded 7005 structures — HAZ recovers a large part of parent strength by natural aging without post-weld heat treatment. 7005 As Welded has a yield strength of 205 MPa (29.7 ksi) and a tensile strength of 290 MPa (42.1 ksi) — stronger than 54% of aluminum grades. Elongation at break is 10% and the elastic modulus is 71 GPa (10.3 Msi). 7005 As Welded has a density of 2.78 g/cm³ (0.1 lb/in³), heavier than 74% of aluminum grades. It melts at 607°C (1,125 °F).
Advantages
- High electrical conductivity — 42 % IACS, better than 81% of aluminum grades
Limitations
- Limited service temperature — 100°C (212 °F), worse than 91% of aluminum grades
- Needs corrosion protection — 38/100, worse than 79% of aluminum grades
7005 As Welded properties
Typical room-temperature values for 7005 As Welded; 22 are specific to this condition. Other listed values are 7005 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
7005 As Welded has a density of 2.78 g/cm³ (0.1 lb/in³), heavier than 74% of aluminum grades. It melts at 607°C (1,125 °F).
Mechanical13
7005 As Welded has a yield strength of 205 MPa (29.7 ksi) and a tensile strength of 290 MPa (42.1 ksi) — stronger than 54% of aluminum grades. Elongation at break is 10% and the elastic modulus is 71 GPa (10.3 Msi).
Thermal6
7005 As Welded is rated for continuous service to 100°C (212 °F). It conducts heat at 155 W/m·K (89.6 BTU/hr·ft·°F), better than 71% of aluminum grades. Thermal expansion is 23.8 µm/m·K (13.2 µin/in·°F).
Electrical3
7005 As Welded conducts electricity at 42 % IACS, better than 81% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (38/100), worse than 79% of aluminum grades.
Sustainability4
Producing a kilogram of 7005 As Welded takes about 200 MJ of energy and emits 12.5 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 30%.
Manufacturability8
7005 As Welded's machinability is good (55/100, worse than 59% of aluminum grades); weldability very good (80/100); formability fair (42/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 7005 As Welded
Is 7005 easy to machine?
Machines well in T5/T6 with sharp polished-flute carbide, high speed and generous coolant; chips are short compared with O temper but material gums if tools dull.
Can 7005 be welded?
Best-weldable 7000 series: GMAW/GTAW with 5356 or 5183 filler, no preheat, HAZ naturally re-ages to ~80 % of parent strength in ~30 days (faster with a 120 °C/24 h post-weld age).
Can 7005 be formed, bent or molded?
Extrudes readily to thin-wall bicycle profiles; cold bending should be done in O or T4-like condition with generous radii, since T6 tube cracks at tight bends.
What surface finishes work on 7005?
Takes clear and hard sulfuric anodize well and is commonly powder-coated; weld beads anodize a different shade, so painted or shot-peened finishes are preferred on welded frames.
7005 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 |
|---|---|---|
| Si | ≤ 0.35 | 0.1 |
| Fe | ≤ 0.4 | 0.2 |
| Cukept low for weldability | ≤ 0.1 | 0.03 |
| Mn | 0.2 – 0.7 | 0.4 |
| Mg | 1 – 1.8 | 1.4 |
| Cr | 0.06 – 0.2 | 0.13 |
| Zn | 4 – 5 | 4.5 |
| Ti | 0.01 – 0.06 | 0.03 |
| Zrgrain-structure control | 0.08 – 0.2 | 0.14 |
| Others (each) | ≤ 0.05 | — |
| Others (total) | ≤ 0.15 | — |
| Al | balance | — |
7005 As Welded — frequently asked
What is 7005 As Welded used for?
7005 As Welded is typically used for bicycle frames and tubing, welded truss and space-frame structures, snowboard and ski cores, truck and trailer structural extrusions, sports equipment tubing and welded chassis and roll structures. In short: weldable mid-strength 7000 series.
What is the yield strength of 7005 As Welded?
7005 As Welded has a typical yield strength of 205 MPa (29.7 ksi) and a tensile strength of 290 MPa (42.1 ksi) — stronger than 54% of aluminum grades. Strength varies by condition: see the 8 listed tempers.
Is 7005 As Welded easy to machine?
Reasonably — machinability is rated good (55/100, worse than 59% of aluminum grades). Machines well in T5/T6 with sharp polished-flute carbide, high speed and generous coolant; chips are short compared with O temper but material gums if tools dull.
Can 7005 As Welded be welded?
Yes — weldability is rated very good (80/100). Best-weldable 7000 series: GMAW/GTAW with 5356 or 5183 filler, no preheat, HAZ naturally re-ages to ~80 % of parent strength in ~30 days (faster with a 120 °C/24 h post-weld age).
What surface finishes work on 7005 As Welded?
Takes clear and hard sulfuric anodize well and is commonly powder-coated; weld beads anodize a different shade, so painted or shot-peened finishes are preferred on welded frames.
Can 7005 As Welded be formed, bent or molded?
Extrudes readily to thin-wall bicycle profiles; cold bending should be done in O or T4-like condition with generous radii, since T6 tube cracks at tight bends.
What is the maximum service temperature of 7005 As Welded?
7005 As Welded is rated for continuous use to about 100°C (212 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in 7005 As Welded?
Yes — 7005 As Welded is available for CNC machining and sheet metal; every part is priced by an engineer rather than instantly. Upload a STEP file to get a price and a DFM check.
Sources
- International Alloy Designations and Chemical Composition Limits for Wrought Aluminum (Teal Sheets) — The Aluminum Association (2018)
- EN 755-2 Aluminium and aluminium alloys — Extruded rod/bar, tube and profiles — 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)
- Aluminum Standards and Data (mechanical property tables) — The Aluminum Association (2017)
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.