Aluminum 5049-H38
Temper
AA 5049 · UNS A95049 · EN AW-5049, 3.3527
H38 = strain hardened and stabilized, full hard
Stabilized full-hard temper for maximum strength with dimensionally stable properties over time.
Values for the H38 condition
Other 5049 tempers and conditions
5049 is listed in 19 conditions; see the grade overview at 5049.
Compare all 19 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Maximum formability for deep drawing, spinning and severe bending. | 95 | 210 | 24 | 48 HB | 36 % IACS |
Strain hardened from hot working only | Hot-rolled plate and extrusions where only minimum as-fabricated properties are required. | 95 | 205 | 18 | 50 HB | 36 % IACS |
Slightly strain hardened | Standard as-supplied soft sheet/plate condition with incidental work from levelling or straightening. | 105 | 215 | 21 | 50 HB | 36 % IACS |
Strain-hardened, 1/8 hard | Very light cold work for improved flatness and slightly higher yield while keeping near-O formability. | 125 | 220 | 16 | 54 HB | 35 % IACS |
Strain hardened and stabilized, quarter hard | Low-temperature stabilized quarter-hard temper resisting age-softening in Al-Mg sheet. | 148 | 238 | 12 | 61 HB | 35 % IACS |
H22Default Strain hardened and partially annealed, quarter hard | Most commonly stocked 5049 sheet/coil: quarter-hard strength with stabilized ductility for forming and welding. | 150 | 240 | 11 | 62 HB | — |
Strain hardened and stabilized, half hard | Stabilized half-hard plate/sheet for tanks, vehicle bodies and marine structures. | 178 | 258 | 10 | 69 HB | 35 % IACS |
Strain hardened, quarter hard | Quarter-hard sheet where moderate strength must be combined with good bending. | 180 | 245 | 9 | 65 HB | 35 % IACS |
Strain hardened and partially annealed, half hard | Half-hard stabilized temper: best strength/ductility balance for bent and welded fabrications. | 180 | 262 | 9 | 70 HB | 35 % IACS |
Strain-hardened, 3/8 hard | Intermediate hardness between H12 and H14 for coil/strip applications. | 195 | 255 | 8 | 69 HB | 35 % IACS |
Strain hardened and stabilized, three-quarter hard | Stabilized three-quarter-hard strip for higher-load panels and roll-formed sections. | 208 | 282 | 7 | 76 HB | 34.5 % IACS |
Strain hardened, half hard | Half-hard sheet: the usual choice when strength matters more than deep forming. | 210 | 265 | 7 | 72 HB | 35 % IACS |
Strain hardened and partially annealed, three-quarter hard | Higher-strength stabilized sheet with better bendability than H16 at the same strength class. | 210 | 285 | 6 | 77 HB | 35 % IACS |
Strain-hardened, 5/8 hard | Between H14 and H16 for strip requiring higher yield with limited bending. | 228 | 278 | 6 | 76 HB | 35 % IACS |
Strain hardened, three-quarter hard | Three-quarter hard sheet for flat panels and roll-formed profiles needing high yield. | 240 | 290 | 5 | 80 HB | 34.5 % IACS |
H38This page Strain hardened and stabilized, full hard | Stabilized full-hard temper for maximum strength with dimensionally stable properties over time. | 248 | 300 | 5 | 84 HB | 34.5 % IACS |
Strain-hardened, 7/8 hard | Near-full-hard strip, mainly for flat parts with minimal forming. | 252 | 300 | 4 | 83 HB | 34.5 % IACS |
Strain hardened and partially annealed, full hard | Full-hard stabilized temper for maximum strength thin gauge strip. | 252 | 305 | 4 | 85 HB | 34.5 % IACS |
Strain hardened, full hard | Maximum cold-worked strength; use only for flat or lightly formed parts. | 268 | 312 | 3 | 87 HB | 34 % IACS |
What is 5049-H38?
5049-H38 is 5049 in the H38 temper — stabilized full-hard temper for maximum strength with dimensionally stable properties over time. 5049-H38 has a yield strength of 248 MPa (36 ksi) and a tensile strength of 300 MPa (43.5 ksi) — stronger than 64% of aluminum grades. Elongation at break is 5% and the elastic modulus is 70 GPa (10.2 Msi). 5049-H38 has a density of 2.69 g/cm³ (0.0972 lb/in³), lighter than 67% of aluminum grades. It melts at 610°C (1,130 °F). H22 is the default condition FabDigit quotes; H38 is available on request or by drawing note.
Advantages
- Good corrosion resistance — 76/100, better than 90% of aluminum grades
- Readily welded — 84/100, better than 76% of aluminum grades
Limitations
- Limited service temperature — 120°C (248 °F), worse than 79% of aluminum grades
5049-H38 properties
Typical room-temperature values for 5049-H38; 19 are specific to this condition. Other listed values are 5049 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
5049-H38 has a density of 2.69 g/cm³ (0.0972 lb/in³), lighter than 67% of aluminum grades. It melts at 610°C (1,130 °F).
Mechanical11
5049-H38 has a yield strength of 248 MPa (36 ksi) and a tensile strength of 300 MPa (43.5 ksi) — stronger than 64% of aluminum grades. Elongation at break is 5% and the elastic modulus is 70 GPa (10.2 Msi).
Thermal6
5049-H38 is rated for continuous service to 120°C (248 °F). It conducts heat at 136 W/m·K (78.6 BTU/hr·ft·°F), worse than 57% of aluminum grades. Thermal expansion is 23.7 µm/m·K (13.2 µin/in·°F).
Electrical3
5049-H38 conducts electricity at 34.5 % IACS, worse than 51% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (76/100), better than 90% of aluminum grades.
Sustainability4
Producing a kilogram of 5049-H38 takes about 200 MJ of energy and emits 12.5 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 35%.
Manufacturability8
5049-H38's machinability is good (57/100, worse than 55% of aluminum grades); weldability very good (84/100); formability fair (35/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 5049-H38
Is 5049 easy to machine?
Gummy in O/H1xx tempers — use sharp polished high-rake carbide, high speed, generous flood or MQL lubrication; harder H16–H38 tempers chip and finish better.
Can 5049 be welded?
Readily GMAW/GTAW welded with ER5356 or ER5183 filler; weld joint reverts to about O-temper strength (~190 MPa) in the HAZ, no post-weld heat treatment possible.
Can 5049 be formed, bent or molded?
Excellent cold formability in O/H111/H22; allow larger bend radii and consider grain-direction effects above H16, and avoid stretcher strain (Lüders) lines by using stabilized H2x/H3x tempers.
What surface finishes work on 5049?
Takes clear and hard anodizing well (slightly grey tone), plus chromate/chrome-free conversion coating, powder coat and paint; brazing is not recommended due to the Mg content.
5049 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 | 0.15 |
| Fe | ≤ 0.5 | 0.3 |
| Cu | ≤ 0.1 | 0.03 |
| Mn | 0.5 – 1.1 | 0.8 |
| Mg | 1.6 – 2.5 | 2 |
| Cr | ≤ 0.3 | 0.05 |
| Zn | ≤ 0.2 | 0.05 |
| Ti | ≤ 0.1 | 0.02 |
| Others (each)each impurity | ≤ 0.05 | — |
| Others (total) | ≤ 0.15 | — |
| Al | balance | — |
5049-H38 — frequently asked
What is 5049-H38 used for?
5049-H38 is typically used for marine fittings, general sheet metal fabrication and welded structures. In short: weldable marine sheet grade; mn-modified 5000-series workhorse; broad temper availability.
What is the yield strength of 5049-H38?
5049-H38 has a typical yield strength of 248 MPa (36 ksi) and a tensile strength of 300 MPa (43.5 ksi) — stronger than 64% of aluminum grades. Strength varies by condition: see the 19 listed tempers.
Is 5049-H38 easy to machine?
Reasonably — machinability is rated good (57/100, worse than 55% of aluminum grades). Gummy in O/H1xx tempers — use sharp polished high-rake carbide, high speed, generous flood or MQL lubrication; harder H16–H38 tempers chip and finish better.
Can 5049-H38 be welded?
Yes — weldability is rated very good (84/100). Readily GMAW/GTAW welded with ER5356 or ER5183 filler; weld joint reverts to about O-temper strength (~190 MPa) in the HAZ, no post-weld heat treatment possible.
What surface finishes work on 5049-H38?
Takes clear and hard anodizing well (slightly grey tone), plus chromate/chrome-free conversion coating, powder coat and paint; brazing is not recommended due to the Mg content.
Can 5049-H38 be formed, bent or molded?
Excellent cold formability in O/H111/H22; allow larger bend radii and consider grain-direction effects above H16, and avoid stretcher strain (Lüders) lines by using stabilized H2x/H3x tempers.
What is the maximum service temperature of 5049-H38?
5049-H38 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 5049-H22 and 5049-H18?
H22 is the default condition — most commonly stocked 5049 sheet/coil: quarter-hard strength with stabilized ductility for forming and welding. H18: maximum cold-worked strength; use only for flat or lightly formed parts. Yield strength is 150 MPa in H22 versus 268 MPa in H18.
Sources
- EN 573-3 Aluminium and aluminium alloys — chemical composition — CEN (2019)
- EN 485-2 Aluminium sheet, strip and plate — mechanical properties — CEN (2018)
- International Alloy Designations and Chemical Composition Limits (Teal Sheets) — The Aluminum Association (2018)
- ASM Handbook Vol.2: Properties and Selection — Nonferrous Alloys — ASM International (1990)
- EN AW-5049 (AlMg2Mn0.8) sheet datasheet — European rolled-products producer (2022)
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.