5083-H111 aluminum
H111 condition, thickness-specific properties, forming, welding, and corrosion/temperature qualification boundaries for wrought 5083 aluminum.
Tags: materials, aluminum, aluminum-magnesium, plate, non-heat-treatable
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Identity and condition
GLEICH's 18 October 2023 5083-H111 rolled-plate sheet gives 115–125 MPa yield, 270–275 MPa tensile, and A50 14–16% as typical at room temperature. It also lists density 2.66 g/cm³ and modulus 70 GPa. Compare these with the separate thickness-specific acceptance rows. GLEICH data and footnote 1
5083-H111 combines a wrought alloy designation with a temper. The Aluminum Association's December 2025 Teal Sheets register 5083 with 4.0–4.9% magnesium, 0.40–1.0% manganese, and 0.05–0.25% chromium by mass, aluminum as the remainder, and limits on other elements. The composition entry does not specify a plate's thickness, strength, finish, or marine certification. Aluminum Association 5083 registration
The Australian Aluminium Council's Rolled Products Manual, January 2024, defines H111 as strain hardened less than required for a controlled H11 temper. It separately defines H112 as acquiring some temper during shaping without special control of strain hardening or thermal treatment, but with mechanical limits or testing requirements. O is annealed/recrystallized. Similar-looking strength entries do not make those processing conditions interchangeable. AAC temper definitions, pp. 9–10
5083 is non-heat-treatable in the precipitation-hardening sense. Keep the complete temper and product form with the lot record; do not convert a cast tooling plate or H112 extrusion into “H111 rolled plate” because a supplier also uses the 5083 alloy name. GLEICH H111 rolled-plate identity
Read property values with their basis
AMCO's undated sheet/plate table separates H111 properties by nominal thickness. Selected rows illustrate the changing strength requirements; thickness headings mean over the lower bound through the upper bound. The source presents its information as a compilation without warranty and does not identify a governing edition. Confirm the applicable standard and certificate rather than using this table as a current purchase specification. AMCO EN AW-5083 mechanical properties
| H111 sheet/plate nominal thickness | Tensile strength Rm | 0.2% proof strength Rp0.2 |
|---|---|---|
| Over 12.5 through 50 mm | 270–345 MPa | 115 MPa |
| Over 50 through 80 mm | 270–345 MPa | 115 MPa |
| Over 80 through 120 mm | 260 MPa minimum | 110 MPa |
A 100 mm plate therefore should not inherit a thin-sheet property entry merely because both certificates say H111. Preserve thickness band, direction, specimen geometry, gauge length, and the distinction between a minimum, maximum, range, and typical value.
A property record useful for engineering should retain the source date, product form, exact temper, dimensional scope, test conditions, and statistic with each value. Matching chemistry or exceeding one generic tensile number does not establish conformance with all requirements in an order.
Forming and product-specific examples
Hulamin's rolled-products brochure lists H111 separately from H32 and H116/H321. Its H111 entry gives 125 MPa minimum proof stress, 275 MPa minimum tensile strength, 15% minimum elongation, and a bend-radius entry of 1.5t for thickness up to 6 mm. The excerpt does not provide enough test detail to turn those figures into universal H111 guarantees. Keep them as that manufacturer's published product information. Hulamin 5083 marine/transport plate sections, pp. 49–53
Illustrative arithmetic: for 6 mm material, 1.5 × 6 mm = 9 mm. This only evaluates the stated ratio. It does not select a punch, die opening, rolling direction, bend allowance, or accepted finished angle. Qualify the actual gauge, batch, tooling, direction, sequence, and drawing requirements; inspect representative parts for cracks, springback, thinning, and surface damage.
The same brochure lists H111 availability at 3–60 mm thickness and lists certification scope separately. Availability is not a statement that every offered thickness has every listed approval. A matching delivery certificate remains necessary where class or project requirements apply. The PDF's cover and back matter do not provide a clear revision date; “2022” in its filename is not treated here as a verified document revision. Hulamin sizes and certification tables
Marine and temperature boundaries
H111 must remain distinct from corrosion-qualified marine tempers. Atlas's sheet, revised 24 June 2021, explains that its B928M discussion concerns 5083-H116 and H321, with exfoliation and intergranular-corrosion testing to ASTM G66/G67. It separately notes classification-society requirements. “5083,” “marine plate,” and an H111 certificate alone do not establish compliance with a requirement for another temper or test regime. Atlas marine-certification discussion, pp. 1–2
Atlas also warns of stress-corrosion susceptibility in high-magnesium 5083 and gives a below-65°C application limit in its general guidance. GLEICH's H111 product page warns about SCC under certain loads above 70°C. These are supplier statements with different boundaries, not endpoints to average into a new universal rating. Evaluate stress, environment, exposure duration, and the applicable design guidance. Atlas temperature warning, GLEICH H111 service warning
In particular, GLEICH's data-sheet long/short temperature entries of 120/180°C carry the qualification without loss of strength after cooling down. That is not a loaded-service allowable stress at those temperatures, nor a waiver of its SCC warning. Preserve the footnote whenever those entries are discussed. GLEICH temperature footnote 3
Joining and final-part qualification
Atlas identifies GMAW/MIG and GTAW/TIG as preferred processes, recommends 5183 for welding 5083 to itself or another 5xxx alloy while allowing other choices, and warns that welding reduces strength in strain-hardened HAZ regions. Filler choice still depends on the actual joint and service. Atlas welding guidance
ESAB's September 19, 2024 guidance explains that welding can anneal the HAZ of non-heat-treatable aluminum. Do not assign a parent-stock property unchanged to weld metal and HAZ, or transfer the percentage strength loss of a harder temper to lightly strain-hardened H111. Use the applicable joint requirements and qualified process. ESAB HAZ explanation
Specify alloy/temper, rolled or other product form, dimensions/tolerances, governing specification/edition, surface requirements, certification, and final service conditions. Preserve lot identity through machining and joining. Review substitutions and thermal/process changes before release; tensile conformity alone does not establish corrosion resistance, fatigue life, leak tightness, or completed-part dimensional stability.