Aluminum 5056-H19
Temper
AA 5056 · UNS A95056 · EN AW-5056, AW 5056
H19 = strain hardened, extra hard
Heavily drawn wire above H18 strength where maximum tensile is required and bendability is not critical.
Values for the H19 condition
Other 5056 tempers and conditions
5056 is listed in 12 conditions; see the grade overview at 5056.
Compare all 12 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Pick for maximum ductility in deep drawing, heading of rivet wire or severe bending before a final work-hardening step. | 152 | 290 | 35 | 65 HB | 29 % IACS |
Slightly strain hardened | Essentially soft material that has picked up light straightening/flattening work; used where O-temper ductility is wanted from an as-shipped mill product. | 165 | 300 | 30 | 68 HB | 29 % IACS |
Strain hardened and stabilized, quarter hard | Most commonly stocked stabilized temper: balanced strength and ductility with age-softening suppressed, suitable for marine sheet, wire and formed hardware. | 235 | 330 | 20 | 78 HB | 28 % IACS |
Strain hardened, quarter hard | Light cold work for a modest strength gain while keeping most forming ability. | 235 | 325 | 18 | 78 HB | 28 % IACS |
Strain hardened, half hard | Mid-strength cold-worked condition for flat parts and moderately formed brackets. | 285 | 360 | 14 | 88 HB | 27.8 % IACS |
Strain hardened and stabilized, half hard | Choose when H32 strength is insufficient but some bending is still required in a stabilized, SCC-resistant condition. | 285 | 365 | 14 | 88 HB | 27.8 % IACS |
Strain hardened and stabilized, three-quarter hard | High-strength stabilized sheet/wire for lightly formed structural parts. | 315 | 390 | 12 | 95 HB | 27.5 % IACS |
Strain hardened and stabilized, full hard | Fully hard but stabilized against age softening — the standard high-strength condition for 5056 wire, screening and rivets. | 345 | 415 | 15 | 100 HB | 27 % IACS |
Hard drawn and stabilized wire | H192 wire given a stabilizing heat treatment to prevent age softening and reduce SCC susceptibility; used for long-life screening and marine wire. | 370 | 425 | 9 | 102 HB | 28 % IACS |
Hard drawn wire | Registered special wire temper for cold-headed rivets, insect screen and armour wire where a defined hard-drawn tensile band is specified. | 400 | 435 | 7 | 105 HB | 27 % IACS |
Strain hardened, full hard | Highest-strength standard temper; the classic choice for cable-armour wire, screening wire and high-strength rivet stock. | 405 | 435 | 10 | 105 HB | 27 % IACS |
H19This page Strain hardened, extra hard | Heavily drawn wire above H18 strength where maximum tensile is required and bendability is not critical. | 425 | 455 | 6 | 110 HB | 27 % IACS |
What is 5056-H19?
5056-H19 is 5056 in the H19 temper — heavily drawn wire above H18 strength where maximum tensile is required and bendability is not critical. 5056-H19 has a yield strength of 425 MPa (61.6 ksi) and a tensile strength of 455 MPa (66 ksi) — stronger than 90% of aluminum grades. Elongation at break is 6% and the elastic modulus is 71 GPa (10.3 Msi). 5056-H19 has a density of 2.64 g/cm³ (0.0954 lb/in³), lighter than 94% of aluminum grades. It melts at 568°C (1,054 °F).
Advantages
- High strength — 425 MPa (61.6 ksi), better than 90% of aluminum grades
- Polishes to a fine finish — 75/100, better than 90% of aluminum grades
- Good corrosion resistance — 70/100, better than 79% of aluminum grades
Limitations
- Limited service temperature — 65°C (149 °F), worse than 97% of aluminum grades
- Poor heat conductor — 109 W/m·K (63 BTU/hr·ft·°F), worse than 90% of aluminum grades
- Low electrical conductivity — 27 % IACS, worse than 86% of aluminum grades
5056-H19 properties
Typical room-temperature values for 5056-H19; 19 are specific to this condition. Other listed values are 5056 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
5056-H19 has a density of 2.64 g/cm³ (0.0954 lb/in³), lighter than 94% of aluminum grades. It melts at 568°C (1,054 °F).
Mechanical10
5056-H19 has a yield strength of 425 MPa (61.6 ksi) and a tensile strength of 455 MPa (66 ksi) — stronger than 90% of aluminum grades. Elongation at break is 6% and the elastic modulus is 71 GPa (10.3 Msi).
Thermal6
5056-H19 is rated for continuous service to 65°C (149 °F). It conducts heat at 109 W/m·K (63 BTU/hr·ft·°F), worse than 90% of aluminum grades. Thermal expansion is 24.1 µm/m·K (13.4 µin/in·°F).
Electrical3
5056-H19 conducts electricity at 27 % IACS, worse than 86% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is very good (70/100), better than 79% of aluminum grades.
Sustainability4
Producing a kilogram of 5056-H19 takes about 200 MJ of energy and emits 12.5 kg of CO₂ — less than 60% of aluminum grades. Typical recycled content is 30%.
Manufacturability7
5056-H19's machinability is good (65/100, better than 62% of aluminum grades); weldability very good (75/100); formability poor (18/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 5056-H19
Is 5056 easy to machine?
Gummy and prone to built-up edge in O temper; use sharp polished high-rake carbide, high speed and flood emulsion — hard tempers (H18/H38) chip much more cleanly.
Can 5056 be welded?
Readily GTAW/GMAW welded with ER5356 or ER5183 filler; avoid 4000 series Si fillers (brittle Mg2Si) and keep interpass temperature low to limit sensitization.
Can 5056 be formed, bent or molded?
Excellent cold formability in O/H111 with high work-hardening rate; hard tempers need generous bend radii, and forming above ~60 °C should be avoided to prevent β-phase precipitation.
What surface finishes work on 5056?
Takes bright, clear and hard anodizing very well and chemically brightens for decorative trim; mechanically polishes to a good luster but is not suited to brazing or hot-dip coating.
5056 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 | ≤ 0.3 | — |
| Fe | ≤ 0.4 | — |
| Cu | ≤ 0.1 | — |
| Mn | 0.05 – 0.2 | 0.12 |
| Mgprimary strengthening element | 4.5 – 5.6 | 5 |
| Cr | 0.05 – 0.2 | 0.12 |
| Zn | ≤ 0.1 | — |
| Others (each)each | ≤ 0.05 | — |
| Others (total)total | ≤ 0.15 | — |
| Al | balance | — |
5056-H19 — frequently asked
What is 5056-H19 used for?
5056-H19 is typically used for zippers, nails and rivets. In short: highest strength 5-series.
What is the yield strength of 5056-H19?
5056-H19 has a typical yield strength of 425 MPa (61.6 ksi) and a tensile strength of 455 MPa (66 ksi) — stronger than 90% of aluminum grades. Strength varies by condition: see the 12 listed tempers.
Is 5056-H19 easy to machine?
Reasonably — machinability is rated good (65/100, better than 62% of aluminum grades). Gummy and prone to built-up edge in O temper; use sharp polished high-rake carbide, high speed and flood emulsion — hard tempers (H18/H38) chip much more cleanly.
Can 5056-H19 be welded?
Yes — weldability is rated very good (75/100). Readily GTAW/GMAW welded with ER5356 or ER5183 filler; avoid 4000 series Si fillers (brittle Mg2Si) and keep interpass temperature low to limit sensitization.
What surface finishes work on 5056-H19?
Takes bright, clear and hard anodizing very well and chemically brightens for decorative trim; mechanically polishes to a good luster but is not suited to brazing or hot-dip coating.
Can 5056-H19 be formed, bent or molded?
Excellent cold formability in O/H111 with high work-hardening rate; hard tempers need generous bend radii, and forming above ~60 °C should be avoided to prevent β-phase precipitation.
What is the maximum service temperature of 5056-H19?
5056-H19 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 5056-H19?
Yes — 5056-H19 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)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials — ASM International (1990)
- ASTM B211 / B221 — Aluminum-Alloy Bar, Rod, Wire and Extruded Products — ASTM International (2019)
- EN 573-3 / EN 485 — Aluminium and aluminium alloys, chemical composition and wrought product properties — CEN (2019)
- Aluminum 5056 alloy property records (O, H18, H38, H192) — MatWeb / ASM Alloy Center (2023)
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.