Aluminum 5383-H34
Temper
AA 5383 · UNS A95383 · EN AW-5383, AW 5383
H34 = strain hardened and stabilized, half hard
Choose for thin sheet needing higher strength and stiffness in panels with only mild forming.
Values for the H34 condition
Other 5383 tempers and conditions
5383 is listed in 9 conditions; see the grade overview at 5383.
Compare all 9 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Pick for maximum formability in deep-drawn or heavily bent marine parts; lowest strength. | 150 | 300 | 20 | 72 HB | 29 % IACS |
Slightly strain hardened | Common for extrusions and lightly worked sheet needing good forming with slightly higher strength than O. | 175 | 310 | 17 | 78 HB | 29 % IACS |
Strain hardened from hot working only | Standard temper for hot-rolled heavy plate and extruded profiles where mechanical minima but no exfoliation test are required. | 200 | 315 | 13 | 85 HB | 29 % IACS |
Strain hardened and stabilized, quarter hard | Sheet temper for formed marine components needing a balance of strength and bendability. | 215 | 325 | 12 | 92 HB | 29 % IACS |
Strain hardened, corrosion-resistant marine temper | Default marine plate/sheet temper: highest guaranteed strength with ASTM G66/G67 exfoliation and IGC acceptance for hull and superstructure. | 220 | 330 | 13 | 95 HB | — |
Strain hardened and stabilized, marine temper | Alternative marine temper to H116 with a thermal stabilization step; specified where class rules or welding practice call for H321. | 222 | 330 | 13 | 95 HB | 29 % IACS |
Strain hardened and partially annealed, quarter hard | Quarter-hard, stabilized 5383 marine sheet — moderate strength with good forming ability and full seawater corrosion resistance. | 235 | 325 | 12 | 82 HB | 29 % IACS |
H34This page Strain hardened and stabilized, half hard | Choose for thin sheet needing higher strength and stiffness in panels with only mild forming. | 265 | 355 | 8 | 105 HB | 29 % IACS |
Strain hardened and partially annealed, half hard | Half-hard, stabilized 5383 sheet — higher strength than H22 with reduced ductility, used for marine and transport panels. | 285 | 360 | 9 | 92 HB | 29 % IACS |
What is 5383-H34?
5383-H34 is 5383 in the H34 temper — choose for thin sheet needing higher strength and stiffness in panels with only mild forming. 5383-H34 has a yield strength of 265 MPa (38.4 ksi) and a tensile strength of 355 MPa (51.5 ksi) — stronger than 69% of aluminum grades. Elongation at break is 8% and the elastic modulus is 71 GPa (10.3 Msi). 5383-H34 has a density of 2.66 g/cm³ (0.0961 lb/in³), lighter than 84% of aluminum grades. It melts at 574°C (1,065 °F).
Advantages
- Good corrosion resistance — 78/100, better than 94% of aluminum grades
- Readily welded — 85/100, better than 79% of aluminum grades
Limitations
- Limited service temperature — 65°C (149 °F), worse than 97% of aluminum grades
- Poor heat conductor — 116 W/m·K (67 BTU/hr·ft·°F), worse than 84% of aluminum grades
- Low electrical conductivity — 29 % IACS, worse than 78% of aluminum grades
5383-H34 properties
Typical room-temperature values for 5383-H34; 21 are specific to this condition. Other listed values are 5383 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
5383-H34 has a density of 2.66 g/cm³ (0.0961 lb/in³), lighter than 84% of aluminum grades. It melts at 574°C (1,065 °F).
Mechanical12
5383-H34 has a yield strength of 265 MPa (38.4 ksi) and a tensile strength of 355 MPa (51.5 ksi) — stronger than 69% of aluminum grades. Elongation at break is 8% and the elastic modulus is 71 GPa (10.3 Msi).
Thermal6
5383-H34 is rated for continuous service to 65°C (149 °F). It conducts heat at 116 W/m·K (67 BTU/hr·ft·°F), worse than 84% of aluminum grades. Thermal expansion is 24.2 µm/m·K (13.4 µin/in·°F).
Electrical3
5383-H34 conducts electricity at 29 % IACS, worse than 78% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (78/100), better than 94% of aluminum grades.
Sustainability4
Producing a kilogram of 5383-H34 takes about 205 MJ of energy and emits 12.5 kg of CO₂ — more than 76% of aluminum grades. Typical recycled content is 35%.
Manufacturability8
5383-H34's machinability is fair (50/100, worse than 65% of aluminum grades); weldability excellent (85/100); formability fair (40/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 5383-H34
Is 5383 easy to machine?
Gummy, long stringy chips — use sharp polished high-rake carbide, high speed, generous flood or MQL lubricant; expect built-up edge if speeds are low.
Can 5383 be welded?
Excellent for MIG/TIG (ER5183 preferred, ER5356 acceptable) and FSW; HAZ softens to near-O strength, so design joints to annealed-temper allowables and keep interpass temperature low.
Can 5383 be formed, bent or molded?
Good cold formability in O/H111; H116/H321 plate needs generous bend radii (≈2–3 t) and transverse bending is preferred over longitudinal.
What surface finishes work on 5383?
Takes protective clear/hard anodizing and marine epoxy primers well; decorative bright anodize is only fair, and chromate-free conversion coatings are standard for painted hull structures.
5383 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 | ≤ 0.25 | 0.1 |
| Fe | ≤ 0.25 | 0.15 |
| Cu | ≤ 0.2 | 0.05 |
| Mn | 0.7 – 1 | 0.85 |
| Mg | 4 – 5.2 | 4.7 |
| Cr | ≤ 0.25 | 0.1 |
| Zn | ≤ 0.4 | 0.2 |
| Ti | ≤ 0.15 | 0.03 |
| Zrgrain-structure control, key difference vs 5083 | ≤ 0.2 | 0.12 |
| Others (each) | ≤ 0.05 | — |
| Others (total) | ≤ 0.15 | — |
| Al | balance | — |
5383-H34 — frequently asked
What is 5383-H34 used for?
5383-H34 is typically used for fast ferry hulls, high-speed yacht hulls, ship superstructure panels, LNG and cryogenic structural plate, offshore platform decks and modules and patrol and workboat hulls. In short: improved corrosion 5083.
What is the yield strength of 5383-H34?
5383-H34 has a typical yield strength of 265 MPa (38.4 ksi) and a tensile strength of 355 MPa (51.5 ksi) — stronger than 69% of aluminum grades. Strength varies by condition: see the 9 listed tempers.
Is 5383-H34 easy to machine?
Reasonably — machinability is rated fair (50/100, worse than 65% of aluminum grades). Gummy, long stringy chips — use sharp polished high-rake carbide, high speed, generous flood or MQL lubricant; expect built-up edge if speeds are low.
Can 5383-H34 be welded?
Yes — weldability is rated excellent (85/100). Excellent for MIG/TIG (ER5183 preferred, ER5356 acceptable) and FSW; HAZ softens to near-O strength, so design joints to annealed-temper allowables and keep interpass temperature low.
What surface finishes work on 5383-H34?
Takes protective clear/hard anodizing and marine epoxy primers well; decorative bright anodize is only fair, and chromate-free conversion coatings are standard for painted hull structures.
Can 5383-H34 be formed, bent or molded?
Good cold formability in O/H111; H116/H321 plate needs generous bend radii (≈2–3 t) and transverse bending is preferred over longitudinal.
What is the maximum service temperature of 5383-H34?
5383-H34 is rated for continuous use to about 65°C (149 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Can FabDigit make parts in 5383-H34?
Yes — 5383-H34 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 485-2 Aluminium and aluminium alloys — Sheet, strip and plate — Mechanical properties — CEN (2016)
- ASTM B928/B928M Standard Specification for High Magnesium Aluminum-Alloy Sheet and Plate for Marine Service — ASTM International (2019)
- ASM Handbook Vol. 2: Properties and Selection — Nonferrous Alloys — ASM International (1990)
- Marine plate alloy 5383 H116/H321 data sheet — Aleris/Corus Aluminium Rolled Products (2010)
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.