6061-T6 vs 7075-T6 Aluminum: Strength, Machining and Finish
Select the complete manufacturing route before comparing aluminum strength figures.
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Representative source rows, qualified by their reported conditions. Inspect the tables below for all values, limits, and source notes.
6082 (EN AW-6082) is the premier European structural alloy of the 6xxx series (Al-Si1-Mg-Mn). Providing the highest strength of all 6xxx grades with manganese grain control, it has largely replaced 6061 in European cranes, bridges, offshore platforms, and transport engineering.
Source-backed commercial trade name and short designations cataloged in canonical data.
Standard Designations & Applicable Specifications — Semantically classified designations distinguishing primary standard identifiers, commercial trade names, and applicable specification references.
| System | Identifier | Standard System Name | Classification Notes & Provenance |
|---|---|---|---|
| AAPRIMARY | 6082 | Aluminum Association | —Ref: Aalco European Standard Aluminium Alloy Technical Datasheet |
| UNS | A96082 | Unified Numbering System | —Ref: Aalco European Standard Aluminium Alloy Technical Datasheet |
| EN | EN AW-6082 | European Standard | —Ref: Aalco European Standard Aluminium Alloy Technical Datasheet |
| ISO | AlSi1MgMn | International Organization for Standardization | —Ref: Aalco European Standard Aluminium Alloy Technical Datasheet |
| Recognized Name / Alias | Classification | Technical Usage & Context |
|---|---|---|
| EN AW-6082 | Commercial Alias | Colloquial or commercial industry synonym |
| Standards Body | Specification Code | Specification Title / Scope | Relationship Type |
|---|---|---|---|
| CEN | EN 485-2 | Aluminium and aluminium alloys - Sheet, strip and plate - Part 2: Mechanical propertiesPRODUCT_SPECIFICATION · Product form: Sheet & Plate | Specification Reference |
| CEN | EN 755-2 | Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 2: Mechanical propertiesPRODUCT_SPECIFICATION · Product form: Extrusions | Specification Reference |
| CEN | EN 573-3 | Aluminium and aluminium alloys - Chemical composition and form of wrought products - Part 3: Chemical composition and form of productsPRODUCT_SPECIFICATION | Specification Reference |
Chemical Composition (Weight %) — Elemental limits and values from the cited source. Preserves exact semantic limits (minimums, maximums, and ranges).
| Element | Symbol | Atomic No. | Semantic Basis | Specified Value | Unit | Metallurgical Notes & Qualification | Data Status |
|---|---|---|---|---|---|---|---|
| Silicon | Si | 0 | RANGE | 0.70 – 1.30 | wt% | Ref: Aalco Metals Ltd | VERIFIED |
| Magnesium | Mg | 0 | RANGE | 0.60 – 1.20 | wt% | Ref: Aalco Metals Ltd | VERIFIED |
| Manganese | Mn | 0 | RANGE | 0.40 – 1.00 | wt% | Ref: Aalco Metals Ltd | VERIFIED |
| Iron | Fe | 0 | MAXIMUM | ≤ 0.50 | wt% | Ref: Aalco Metals Ltd | VERIFIED |
| Chromium | Cr | 0 | MAXIMUM | ≤ 0.25 | wt% | Ref: Aalco Metals Ltd | VERIFIED |
| Zinc | Zn | 0 | MAXIMUM | ≤ 0.20 | wt% | Ref: Aalco Metals Ltd | VERIFIED |
| Titanium | Ti | 0 | MAXIMUM | ≤ 0.10 | wt% | Ref: Aalco Metals Ltd | VERIFIED |
| Copper | Cu | 0 | MAXIMUM | ≤ 0.10 | wt% | Ref: Aalco Metals Ltd | VERIFIED |
| Other Elements Each | OE | 0 | EACH | ≤ 0.05 each | wt% | Ref: Aalco Metals Ltd | VERIFIED |
| Other Elements Total | OT | 0 | TOTAL | ≤ 0.15 | wt% | Ref: Aalco Metals Ltd | VERIFIED |
| Aluminum | Al | 0 | REMAINDER | Remainder | wt% | Balance aluminumRef: Aalco Metals Ltd | VERIFIED |
Source-specific physical properties. Test temperatures are shown only where reported.
| Property Parameter | Canonical SI Value | Semantic Basis | Test Temperature / Context Range | Source Raw Reference | Source Reference | Status |
|---|---|---|---|---|---|---|
| Density | 2.7 g/cm³ | TYPICAL | 2.7 g/cm³ | Aalco Metals Ltd | VERIFIED |
Phase change temperatures, thermal conductivity, specific heat, mean coefficients of thermal expansion across standardized temperature ranges, and recommended thermal processing windows.
| Property Parameter | Canonical SI Value | Semantic Basis | Test Temperature / Context Range | Source Raw Reference | Source Reference | Status |
|---|---|---|---|---|---|---|
| Coefficient of Thermal Expansion | 24 µm/(m·K) | TYPICAL | 24.0 µm/(m·K) | Aalco Metals Ltd | VERIFIED | |
| Solidus Temperature | 555 °C | TYPICAL | 555 °C | Aalco Metals Ltd | VERIFIED | |
| Thermal Conductivity | 180 W/(m·K) | TYPICAL | 180 W/(m·K) | Aalco Metals Ltd | VERIFIED |
Contextual Mechanical Properties & Tempers: Engineering strength, ductility, and hardness values grouped by product form, temper, and section thickness. Mechanical properties are contextual and not isotropic averages.
| Product Form | Temper / Condition | Section Size | Tensile (UTS) | Yield Strength | Elongation | Shear Strength | Fatigue Strength | Hardness (Scales Preserved) | Status |
|---|---|---|---|---|---|---|---|---|---|
| Sheet | O TemperSource values and qualifiersYield Strength (0.2% Proof Stress): ≤ 85 MPa (MAXIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties O Sheet 0.4mm to 6.0mm Ultimate Tensile Strength: ≤ 150 MPa (MAXIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties O Sheet 0.4mm to 6.0mm Elongation (A50 mm): ≥ 16 % (MINIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties O Sheet 0.4mm to 6.0mm | 0.4mm to 6.0mm | ≤ 150 MPa | ≤ 85 MPa | ≥ 16 % | — | — | — | VERIFIED |
| Extrusions | T4 TemperSource values and qualifiersYield Strength (0.2% Proof Stress): ≥ 110 MPa (MINIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties T4 Extrusions up to 200mm Ultimate Tensile Strength: ≥ 205 MPa (MINIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties T4 Extrusions up to 200mm Elongation (A50 mm): ≥ 12 % (MINIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties T4 Extrusions up to 200mm | up to 200mm | ≥ 205 MPa | ≥ 110 MPa | ≥ 12 % | — | — | — | VERIFIED |
| Plate | T6 / T651 TemperSource values and qualifiersYield Strength (0.2% Proof Stress): ≥ 255 MPa (MINIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties T651 Plate 6.0mm to 12.5mm Ultimate Tensile Strength: ≥ 300 MPa (MINIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties T651 Plate 6.0mm to 12.5mm Elongation (A50 mm): ≥ 9 % (MINIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties T651 Plate 6.0mm to 12.5mm | 6.0mm to 12.5mm | ≥ 300 MPa | ≥ 255 MPa | ≥ 9 % | — | — | — | VERIFIED |
| Plate | T6 / T651 TemperSource values and qualifiersYield Strength (0.2% Proof Stress): ≥ 240 MPa (MINIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties T651 Plate 12.5mm to 100mm Ultimate Tensile Strength: ≥ 295 MPa (MINIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties T651 Plate 12.5mm to 100mm | 12.5mm to 100mm | ≥ 295 MPa | ≥ 240 MPa | — | — | — | — | VERIFIED |
| Plate | T6 / T651 TemperSource values and qualifiersYield Strength (0.2% Proof Stress): ≥ 240 MPa (MINIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties T651 Plate 100mm to 150mm Ultimate Tensile Strength: ≥ 275 MPa (MINIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties T651 Plate 100mm to 150mm Elongation (A50 mm): ≥ 6 % (MINIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties T651 Plate 100mm to 150mm | 100mm to 150mm | ≥ 275 MPa | ≥ 240 MPa | ≥ 6 % | — | — | — | VERIFIED |
| Extrusions | T6 TemperSource values and qualifiersYield Strength (0.2% Proof Stress): ≥ 250 MPa (MINIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties T6 Extrusions up to 5mm Ultimate Tensile Strength: ≥ 290 MPa (MINIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties T6 Extrusions up to 5mm Elongation (A50 mm): ≥ 8 % (MINIMUM)Aalco Metals Ltd — mat-phase4c-6082 Mechanical Properties T6 Extrusions up to 5mm | up to 5mm | ≥ 290 MPa | ≥ 250 MPa | ≥ 8 % | — | — | — | VERIFIED |
| Sheet | O TemperSource values and qualifiersHB Hardness: 35 HB (TYPICAL)Aalco Metals Ltd — mat-phase4c-6082 Hardness O Sheet 0.4mm to 6.0mm | 0.4mm to 6.0mm | — | — | — | — | — | 35 HB | VERIFIED |
| Extrusions | T4 TemperSource values and qualifiersHB Hardness: 67 HB (TYPICAL)Aalco Metals Ltd — mat-phase4c-6082 Hardness T4 Extrusions up to 200mm | up to 200mm | — | — | — | — | — | 67 HB | VERIFIED |
| Plate | T6 / T651 TemperSource values and qualifiersHB Hardness: 91 HB (TYPICAL)Aalco Metals Ltd — mat-phase4c-6082 Hardness T651 Plate 6.0mm to 12.5mm | 6.0mm to 12.5mm | — | — | — | — | — | 91 HB | VERIFIED |
| Plate | T6 / T651 TemperSource values and qualifiersHB Hardness: 89 HB (TYPICAL)Aalco Metals Ltd — mat-phase4c-6082 Hardness T651 Plate 12.5mm to 100mm | 12.5mm to 100mm | — | — | — | — | — | 89 HB | VERIFIED |
| Plate | T6 / T651 TemperSource values and qualifiersHB Hardness: 84 HB (TYPICAL)Aalco Metals Ltd — mat-phase4c-6082 Hardness T651 Plate 100mm to 150mm | 100mm to 150mm | — | — | — | — | — | 84 HB | VERIFIED |
| Extrusions | T6 TemperSource values and qualifiersHB Hardness: 94 HB (TYPICAL)Aalco Metals Ltd — mat-phase4c-6082 Hardness T6 Extrusions up to 5mm | up to 5mm | — | — | — | — | — | 94 HB | VERIFIED |
By Mat Grades Editorial Desk · Updated 2026-11-14. Use alongside the specified product standard and supplier certificate.
For 6082 Aluminum, a qualified cutting-speed or tool-life recommendation is not supplied in the available record. A relevant hardness example is HB Hardness: 35 HB (typical; O Temper, O, Sheet, 0.4mm to 6.0mm). Use that supplied condition for a trial of the difficult feature. Record tool changes, burr removal, unclamped dimensions and accepted parts per hour. Relative machinability ratings from different reference scales should not be compared as if they were one common test.
No qualified weld procedure, filler selection or preheat/interpass schedule is established by this material record. Obtain a procedure for the actual joint, supplied condition and section rather than copying one from a nearby grade. The first cataloged strength example is Yield Strength (0.2% Proof Stress): maximum 85 MPa (maximum; O Temper, O, Sheet, 0.4mm to 6.0mm). Assess the final part after joining or thermal processing. Include distortion, cleanup and inspection in the quotation. A material designation or favorable process rating is a starting point for qualification, not evidence that an untested joint meets the drawing.
Review the finish, moisture traps and contact with other metals before accepting an assembly for service. Alloy, temper and surface treatment answer different questions. A stronger listed condition does not automatically solve corrosion, wear or deflection, and thermal-property data is not a maximum operating-temperature rating. The recorded thermal example is Coefficient of Thermal Expansion: 24 µm/(m·K) (typical; additional condition not stated). State the exposure and inspection access in the design record so that a change of installation or cleaning method triggers a review. The selected composition entries are Si 0.7–1.3 wt%, Mg 0.6–1.2 wt%, Mn 0.4–1 wt%. Chemistry documents identity; it does not establish fluid compatibility.
Use AA 6082, UNS A96082, EN EN AW-6082 to identify the candidate, then specify the product form and delivered condition separately. A specific component application is not asserted where the source record does not provide one. The listed forms include Sheet, Extrusions; confirm the actual stock offered by the supplier. Compare the complete route through machining, joining, finish and inspection. Keep the certificate, required test location and acceptance criteria with the first-article record. A later change of grade, condition or source should be assessed against that same requirement.
Technical references: Aalco Metals Ltd
Wrought aluminum alloys grouped under the 6xxx metallurgical series sharing fundamental alloying systems and physical characteristics.
Contextual technical guides explaining degradation mechanisms, testing methodologies, and selection criteria relevant to 6082 Aluminum.
Select the complete manufacturing route before comparing aluminum strength figures.
Aluminium possesses distinct physical and metallurgical properties—including a tenacious refractory oxide layer that melts at 2,072°C, thermal conductivity five times higher than structural steel, extreme liquid hydrogen solubility, and a lack of visible color change before melting. Successful aluminium-to-aluminium welding requires matching the base alloy series to an appropriate process (AC TIG, pulsed MIG, or SMAW) and compatible filler metal while designing for unavoidable heat-affected zone softening.
Sources & Provenance Trail: Authoritative reference publications, standards specifications, and data registers cited across this material record.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Chemical Composition EN 573-3. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Physical Properties DENSITY. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Physical Properties ELASTIC_MODULUS. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Physical Properties THERMAL_EXPANSION. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Physical Properties SOLIDUS_TEMPERATURE. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Physical Properties THERMAL_CONDUCTIVITY. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Mechanical Properties O Sheet 0.4mm to 6.0mm. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Mechanical Properties T4 Extrusions up to 200mm. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Mechanical Properties T651 Plate 6.0mm to 12.5mm. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Mechanical Properties T651 Plate 12.5mm to 100mm. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Mechanical Properties T651 Plate 100mm to 150mm. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Mechanical Properties T6 Extrusions up to 5mm. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Hardness O Sheet 0.4mm to 6.0mm. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Hardness T4 Extrusions up to 200mm. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Hardness T651 Plate 6.0mm to 12.5mm. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Hardness T651 Plate 12.5mm to 100mm. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Hardness T651 Plate 100mm to 150mm. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Hardness T6 Extrusions up to 5mm. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Designation AA 6082. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Designation UNS A96082. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Designation EN EN AW-6082. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Designation ISO AlSi1MgMn. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Specification EN 485-2. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Specification EN 755-2. Selected facts only; no decorative text or full standards tables reproduced.
Reviewed factual extraction from Aalco technical datasheets transcribing European standards (EN 573-3, EN 485-2, EN 755-2): mat-phase4c-6082 Specification EN 573-3. Selected facts only; no decorative text or full standards tables reproduced.