Aluminum 6262A-T4
Temper
AA 6262A · EN AlMg1SiSn
T4 = solution heat treated and naturally aged
Occasional intermediate condition when parts must be bent, staked or swaged before final artificial aging.
Values for the T4 condition
Other 6262A tempers and conditions
6262A is listed in 8 conditions; see the grade overview at 6262A.
Compare all 8 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Softest condition, used only as a processing state for heavy cold working or re-drawing before heat treatment. | 60 | 130 | 25 | 32 HB | 47 % IACS |
T4This page Solution heat treated and naturally aged | Occasional intermediate condition when parts must be bent, staked or swaged before final artificial aging. | 130 | 240 | 20 | 65 HB | 40 % IACS |
T6Default Solution heat treated and artificially aged | Standard stocked rod/bar condition: best balance of strength, ductility and free-machining behaviour for general screw-machined parts. | 275 | 310 | 12 | 95 HB | 43 % IACS |
T6, stress relieved by stretching | Pick when tight dimensional stability after heavy machining matters; strength as T6 but with low residual stress. | 280 | 310 | 11 | 95 HB | 43 % IACS |
T6, stress relieved by stretching, minor straightening | Extruded/drawn bar supplied straight and low-stress for automatic-lathe feeding of long parts. | 280 | 310 | 11 | 95 HB | 43 % IACS |
Solution heat treated, cold worked and artificially aged | Choose for higher strength and better surface finish/size tolerance than T6 while keeping useful ductility. | 360 | 380 | 10 | 115 HB | 44 % IACS |
T8 with stress-relief stretching and minor straightening | T8 strength with controlled straightness and low residual stress for precision turned components. | 360 | 380 | 10 | 115 HB | 44 % IACS |
Solution heat treated, artificially aged and cold worked | Highest strength and hardness plus the best chip control and surface finish; use for hard, close-tolerance drawn bar on multi-spindle machines. | 380 | 400 | 10 | 120 HB | 44 % IACS |
What is 6262A-T4?
6262A-T4 is 6262A in the T4 temper — occasional intermediate condition when parts must be bent, staked or swaged before final artificial aging. 6262A-T4 has a yield strength of 130 MPa (18.9 ksi) and a tensile strength of 240 MPa (34.8 ksi) — weaker than 73% of aluminum grades. Elongation at break is 20% and the elastic modulus is 69.5 GPa (10.1 Msi). 6262A-T4 has a density of 2.71 g/cm³ (0.0979 lb/in³), heavier than 51% of aluminum grades. It melts at 582°C (1,080 °F). T6 is the default condition FabDigit quotes; T4 is available on request or by drawing note.
Advantages
- Tough — resists crack growth — 34 MPa·√m (30.9 ksi·√in), better than 90% of aluminum grades
- Ductile — tolerates forming and impact — 20%, better than 89% of aluminum grades
- Easy to machine — 78/100, better than 89% of aluminum grades
- Forms and bends easily — 65/100, better than 80% of aluminum grades
Limitations
- Limited service temperature — 120°C (248 °F), worse than 79% of aluminum grades
6262A-T4 properties
Typical room-temperature values for 6262A-T4; 22 are specific to this condition. Other listed values are 6262A reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
6262A-T4 has a density of 2.71 g/cm³ (0.0979 lb/in³), heavier than 51% of aluminum grades. It melts at 582°C (1,080 °F).
Mechanical12
6262A-T4 has a yield strength of 130 MPa (18.9 ksi) and a tensile strength of 240 MPa (34.8 ksi) — weaker than 73% of aluminum grades. Elongation at break is 20% and the elastic modulus is 69.5 GPa (10.1 Msi).
Thermal6
6262A-T4 is rated for continuous service to 120°C (248 °F). It conducts heat at 155 W/m·K (89.6 BTU/hr·ft·°F), better than 71% of aluminum grades. Thermal expansion is 23.4 µm/m·K (13 µin/in·°F).
Electrical3
6262A-T4 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 6262A-T4 takes about 205 MJ of energy and emits 12.5 kg of CO₂ — more than 76% of aluminum grades. Typical recycled content is 25%.
Manufacturability6
6262A-T4's machinability is very good (78/100, better than 89% of aluminum grades); weldability fair (35/100); formability good (65/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 6262A-T4
Is 6262A easy to machine?
Excellent free-cutting behaviour: the soft Sn phase breaks chips so parts run at high feeds on CNC and multi-spindle lathes with polished-flute carbide tools; T8/T9 give the best finish and closest tolerances.
Can 6262A be welded?
Not recommended for structural welding — the low-melting Sn phase promotes hot cracking and weld porosity; use mechanical joining or, if welding is unavoidable, qualify GTAW with 4043/5356 filler on non-critical joints.
Can 6262A be formed, bent or molded?
Cold formability is limited in T6/T8/T9 (generous bend radii, avoid heavy staking); do severe forming in O or T4 and age afterwards, and keep hot-working temperatures below about 400 °C to avoid Sn-related hot shortness.
What surface finishes work on 6262A?
Clear and hard anodizing respond well and give good wear/corrosion protection; bright decorative anodizing or high-polish work can show faint speckle from Sn particles, and electroless nickel or chromate conversion are good alternatives.
6262A 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 | 0.4 – 0.8 | 0.6 |
| Fe | ≤ 0.7 | 0.3 |
| Cu | 0.15 – 0.4 | 0.27 |
| Mn | ≤ 0.15 | — |
| Mg | 0.8 – 1.2 | 1 |
| Cr | 0.04 – 0.14 | 0.09 |
| Zn | ≤ 0.25 | — |
| Ti | ≤ 0.15 | — |
| Snfree-machining addition replacing Pb+Bi of 6262 | 0.4 – 0.7 | 0.55 |
| Others (each) | ≤ 0.05 | — |
| Others (total) | ≤ 0.15 | — |
| Al | balance | — |
6262A-T4 — frequently asked
What is 6262A-T4 used for?
6262A-T4 is typically used for precision machined fittings, fasteners and roHS-compliant free-machining parts. In short: lead-free free-machining 6000 series; screw-machine bar grade; direct 6262 replacement.
What is the yield strength of 6262A-T4?
6262A-T4 has a typical yield strength of 130 MPa (18.9 ksi) and a tensile strength of 240 MPa (34.8 ksi) — weaker than 73% of aluminum grades. Strength varies by condition: see the 8 listed tempers.
Is 6262A-T4 easy to machine?
Yes — machinability is rated very good (78/100, better than 89% of aluminum grades). Excellent free-cutting behaviour: the soft Sn phase breaks chips so parts run at high feeds on CNC and multi-spindle lathes with polished-flute carbide tools; T8/T9 give the best finish and closest tolerances.
Can 6262A-T4 be welded?
With care — weldability is rated fair (35/100). Not recommended for structural welding — the low-melting Sn phase promotes hot cracking and weld porosity; use mechanical joining or, if welding is unavoidable, qualify GTAW with 4043/5356 filler on non-critical joints.
What surface finishes work on 6262A-T4?
Clear and hard anodizing respond well and give good wear/corrosion protection; bright decorative anodizing or high-polish work can show faint speckle from Sn particles, and electroless nickel or chromate conversion are good alternatives.
Can 6262A-T4 be formed, bent or molded?
Cold formability is limited in T6/T8/T9 (generous bend radii, avoid heavy staking); do severe forming in O or T4 and age afterwards, and keep hot-working temperatures below about 400 °C to avoid Sn-related hot shortness.
What is the maximum service temperature of 6262A-T4?
6262A-T4 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 6262A-T6 and 6262A-O?
T6 is the default condition — standard stocked rod/bar condition: best balance of strength, ductility and free-machining behaviour for general screw-machined parts. O: softest condition, used only as a processing state for heavy cold working or re-drawing before heat treatment. Yield strength is 275 MPa in T6 versus 60 MPa in O.
Sources
- EN 573-3 Aluminium and aluminium alloys — Chemical composition (EN AW-6262A) — CEN (2019)
- EN 755-2 Aluminium extruded rod/bar, tube and profiles — Mechanical properties — CEN (2016)
- ASTM B211 / B221 — Aluminum-alloy bar, rod, wire and extruded shapes — ASTM (2019)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys (6262 data) — ASM International (1990)
- International Alloy Designations and Chemical Composition Limits (Teal Sheets) — The Aluminum Association (2018)
- Free-machining lead-free aluminium bar datasheets (Sn-modified 6000 series) — European extruders/drawers (2023)
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.