Preventing Galvanic Corrosion in Stainless, Aluminum and Copper Assemblies
Control the electrical path, moisture and area relationship—not just the metal pair.
Mat Grades internal verification confirms source-backed fidelity and data integrity. It does not constitute external certification or guaranteed lot conformity. Read engineering disclaimer →
Representative source rows, qualified by their reported conditions. Inspect the tables below for all values, limits, and source notes.
5052 is a versatile non-heat-treatable Al-Mg alloy (2.5% Mg) possessing high fatigue strength, excellent resistance to saltwater corrosion, and outstanding cold forming characteristics for marine hardware, fuel tanks, and sheet metal fabrication.
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 | 5052 | Aluminum Association | —Ref: Kaiser Aluminum Technical Engineering Datasheet |
| UNS | A95052 | Unified Numbering System | —Ref: Kaiser Aluminum Technical Engineering Datasheet |
| ISO | AlMg2.5 | International Organization for Standardization | —Ref: Kaiser Aluminum Technical Engineering Datasheet |
| Recognized Name / Alias | Classification | Technical Usage & Context |
|---|---|---|
| AA 5052 | Commercial Alias | Colloquial or commercial industry synonym |
| Standards Body | Specification Code | Specification Title / Scope | Relationship Type |
|---|---|---|---|
| ASTM International | ASTM B210 | Standard Specification for Aluminum and Aluminum-Alloy Drawn Seamless TubesPRODUCT_SPECIFICATION · Product form: Drawn Tube | Specification Reference |
| ASTM International | ASTM B209 | Standard Specification for Aluminum and Aluminum-Alloy Sheet and PlatePRODUCT_SPECIFICATION · Product form: Sheet & Plate | 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 | MAXIMUM | ≤ 0.25 | wt% | Ref: Kaiser Aluminum Corporation | VERIFIED |
| Iron | Fe | 0 | MAXIMUM | ≤ 0.40 | wt% | Ref: Kaiser Aluminum Corporation | VERIFIED |
| Copper | Cu | 0 | MAXIMUM | ≤ 0.10 | wt% | Ref: Kaiser Aluminum Corporation | VERIFIED |
| Manganese | Mn | 0 | MAXIMUM | ≤ 0.10 | wt% | Ref: Kaiser Aluminum Corporation | VERIFIED |
| Magnesium | Mg | 0 | RANGE | 2.20 – 2.80 | wt% | Ref: Kaiser Aluminum Corporation | VERIFIED |
| Chromium | Cr | 0 | RANGE | 0.15 – 0.35 | wt% | Ref: Kaiser Aluminum Corporation | VERIFIED |
| Zinc | Zn | 0 | MAXIMUM | ≤ 0.10 | wt% | Ref: Kaiser Aluminum Corporation | VERIFIED |
| Other Elements Each | OE | 0 | EACH | ≤ 0.05 each | wt% | Ref: Kaiser Aluminum Corporation | VERIFIED |
| Other Elements Total | OT | 0 | TOTAL | ≤ 0.15 | wt% | Ref: Kaiser Aluminum Corporation | VERIFIED |
| Aluminum | Al | 0 | REMAINDER | Remainder | wt% | Balance aluminumRef: Kaiser Aluminum Corporation | 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 | 2.68 g/cm³ | TYPICAL | 2.68 g/cm³ | Kaiser Aluminum Corporation | 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 | 23.8 µm/(m·K) | TYPICAL | 23.8 µm/(m·K) | Kaiser Aluminum Corporation | VERIFIED | |
| Solidus Temperature | 607 °C | TYPICAL | 607 °C | Kaiser Aluminum Corporation | VERIFIED | |
| Liquidus Temperature | 649 °C | TYPICAL | 649 °C | Kaiser Aluminum Corporation | VERIFIED | |
| Thermal Conductivity | 138 W/(m·K) | TYPICAL | 138 W/(m·K) | Kaiser Aluminum Corporation | VERIFIED |
Electrical conductivity and resistivity in their reported units and conditions.
| Property Parameter | Canonical SI Value | Semantic Basis | Test Temperature / Context Range | Source Raw Reference | Source Reference | Status |
|---|---|---|---|---|---|---|
| Electrical Conductivity | 35 % IACS | TYPICAL | 35.0 % IACS | Kaiser Aluminum Corporation | 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.
By Mat Grades Editorial Desk · Updated 2026-11-14. Use alongside the specified product standard and supplier certificate.
For 5052 Aluminum, a qualified cutting-speed or tool-life recommendation is not supplied in the available record. A relevant hardness example is HB Hardness: 47 HB (typical; O Temper, O, Drawn Tube). 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 Ultimate Tensile Strength: 193 MPa (typical; O Temper, O, Drawn Tube). 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: 23.8 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 maximum 0.25 wt%, Fe maximum 0.4 wt%, Cu maximum 0.1 wt%. Chemistry documents identity; it does not establish fluid compatibility.
For formed sheet parts, discuss bend geometry and the supplied H temper with the shop. Compare the finished formed component with a machined or welded alternative rather than selecting from one tensile-strength number. The listed forms include Drawn Tube; 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: Kaiser Aluminum Corporation
Wrought aluminum alloys grouped under the 5xxx metallurgical series sharing fundamental alloying systems and physical characteristics.
Contextual technical guides explaining degradation mechanisms, testing methodologies, and selection criteria relevant to 5052 Aluminum.
Control the electrical path, moisture and area relationship—not just the metal pair.
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 transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Chemical Composition Limits. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Physical Properties DENSITY. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Physical Properties ELASTIC_MODULUS. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Physical Properties THERMAL_EXPANSION. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Physical Properties SOLIDUS_TEMPERATURE. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Physical Properties LIQUIDUS_TEMPERATURE. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Physical Properties THERMAL_CONDUCTIVITY. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Physical Properties ELECTRICAL_CONDUCTIVITY. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Mechanical Properties O Drawn Tube. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Mechanical Properties H32 Drawn Tube. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Mechanical Properties H34 Drawn Tube. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Mechanical Properties H38 Drawn Tube. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Hardness O Drawn Tube. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Hardness H32 Drawn Tube. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Hardness H34 Drawn Tube. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Hardness H38 Drawn Tube. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Designation AA 5052. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Designation UNS A95052. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Designation ISO AlMg2.5. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Specification ASTM B210. Selected facts only; no decorative text or full standard tables reproduced.
Reviewed factual transcription from Kaiser Aluminum technical product datasheets: mat-phase4c-5052 Specification ASTM B209. Selected facts only; no decorative text or full standard tables reproduced.