Aluminum ER2519 AW-AA
Precip hard
ASTM AWS A5.10 ER2519
Choose post-weld artificial ageing near 165 °C without re-solutionising for large armour structures: yield rises to 235 MPa with low distortion risk, while elongation falls to 5%.
Values for the AW-AA condition
Other ER2519 tempers and conditions
ER2519 is listed in 3 conditions; see the grade overview at ER2519.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
AWDefault As-welded deposit | Use the as-deposited weld metal condition when 2519/2219 armour plate receives no post-weld heat treatment; expect 165 MPa yield, 290 MPa tensile and limited corrosion resistance. | 165 | 290 | 7 | 80 HB | 29 % IACS |
AW-AAThis page as welded then post-weld artificially aged (~165 °C) | Choose post-weld artificial ageing near 165 °C without re-solutionising for large armour structures: yield rises to 235 MPa with low distortion risk, while elongation falls to 5%. | 235 | 340 | 5 | 100 HB | 32 % IACS |
Post-weld solution heat treated and artificially aged | Pick full post-weld solution treatment, quench and ageing on small parts to reach 275 MPa yield and 400 MPa tensile close to the base metal, accepting distortion and residual stress. | 275 | 400 | 6 | 115 HB | 30 % IACS |
What is ER2519 AW-AA?
ER2519 AW-AA is ER2519 in the AW-AA condition — choose post-weld artificial ageing near 165 °C without re-solutionising for large armour structures: yield rises to 235 MPa with low distortion risk, while elongation falls to 5%. ER2519 AW-AA has a yield strength of 235 MPa (34.1 ksi) and a tensile strength of 340 MPa (49.3 ksi) — stronger than 61% of aluminum grades. Elongation at break is 5% and the elastic modulus is 73 GPa (10.6 Msi). ER2519 AW-AA has a density of 2.82 g/cm³ (0.102 lb/in³), heavier than 89% of aluminum grades. It melts at 543°C (1,009 °F). AW is the default condition FabDigit quotes; AW-AA is available on request or by drawing note.
Limitations
- Needs corrosion protection — 33/100, worse than 91% of aluminum grades
- Hard to polish — 45/100, worse than 76% of aluminum grades
ER2519 AW-AA properties
Typical room-temperature values for ER2519 AW-AA; 22 are specific to this condition. Other listed values are ER2519 reference data and may not represent this condition. Bars are the position among aluminum grades.
Physical3
ER2519 AW-AA has a density of 2.82 g/cm³ (0.102 lb/in³), heavier than 89% of aluminum grades. It melts at 543°C (1,009 °F).
Mechanical12
ER2519 AW-AA has a yield strength of 235 MPa (34.1 ksi) and a tensile strength of 340 MPa (49.3 ksi) — stronger than 61% of aluminum grades. Elongation at break is 5% and the elastic modulus is 73 GPa (10.6 Msi).
Thermal6
ER2519 AW-AA is rated for continuous service to 150°C (302 °F). It conducts heat at 138 W/m·K (79.7 BTU/hr·ft·°F), worse than 55% of aluminum grades. Thermal expansion is 22.3 µm/m·K (12.4 µin/in·°F).
Electrical3
ER2519 AW-AA conducts electricity at 32 % IACS, worse than 63% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is poor (33/100), worse than 91% of aluminum grades.
Sustainability4
Producing a kilogram of ER2519 AW-AA takes about 205 MJ of energy and emits 13 kg of CO₂ — more than 76% of aluminum grades. Typical recycled content is 8%.
Manufacturability8
ER2519 AW-AA's machinability is very good (70/100, better than 72% of aluminum grades); weldability good (60/100); formability fair (35/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ER2519 AW-AA
Is ER2519 easy to machine?
Weld beads cut well with sharp, high-helix-angle tools at high speed; watch for local hard spots and burring caused by Cu-bearing intermetallic phases.
Can ER2519 be welded?
Use GMAW/GTAW with pure Ar or Ar-He shielding, strip oxide film and remove oil thoroughly, hold interpass temperature below 150 °C and keep heat input low to suppress hot cracking and HAZ softening.
Can ER2519 be formed, bent or molded?
Supplied as cold-drawn spooled wire or straight rod. As-welded ductility is limited, so avoid heavy cold forming of the weld zone.
What surface finishes work on ER2519?
Anodizing produces a dark film with poor corrosion resistance; standard practice is chromate or chrome-free chemical conversion coating plus epoxy primer and a CARC topcoat per military paint systems.
ER2519 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 |
|---|---|---|
| Cuprimary strengthening element | 5.3 – 6.4 | 5.9 |
| Mn | 0.1 – 0.5 | 0.3 |
| Mghigher than ER2319, raises strength and toughness | 0.05 – 0.4 | 0.2 |
| Zrrefines weld metal grain structure | 0.1 – 0.25 | 0.17 |
| V | 0.05 – 0.15 | 0.1 |
| Tigrain refiner | 0.02 – 0.1 | 0.06 |
| Feimpurity limit | ≤ 0.3 | — |
| Siimpurity limit | ≤ 0.25 | — |
| Znimpurity limit | ≤ 0.1 | — |
| Others (each) | ≤ 0.05 | — |
| Others (total) | ≤ 0.15 | — |
| Al | balance | — |
ER2519 AW-AA — frequently asked
What is ER2519 AW-AA used for?
ER2519 AW-AA is typically used for armored vehicle hull weldments, military vehicle structural welds, 2519 armor plate butt and fillet joints, turret and hatch surround structures, battle-damage repair of armor structures and amphibious vehicle hull sections. In short: armor-grade 2519 match; tougher than ER2319; al-Cu military filler.
What is the yield strength of ER2519 AW-AA?
ER2519 AW-AA has a typical yield strength of 235 MPa (34.1 ksi) and a tensile strength of 340 MPa (49.3 ksi) — stronger than 61% of aluminum grades. Strength varies by condition: see the 3 listed tempers.
Is ER2519 AW-AA easy to machine?
Yes — machinability is rated very good (70/100, better than 72% of aluminum grades). Weld beads cut well with sharp, high-helix-angle tools at high speed; watch for local hard spots and burring caused by Cu-bearing intermetallic phases.
Can ER2519 AW-AA be welded?
Yes — weldability is rated good (60/100). Use GMAW/GTAW with pure Ar or Ar-He shielding, strip oxide film and remove oil thoroughly, hold interpass temperature below 150 °C and keep heat input low to suppress hot cracking and HAZ softening.
What surface finishes work on ER2519 AW-AA?
Anodizing produces a dark film with poor corrosion resistance; standard practice is chromate or chrome-free chemical conversion coating plus epoxy primer and a CARC topcoat per military paint systems.
Can ER2519 AW-AA be formed, bent or molded?
Supplied as cold-drawn spooled wire or straight rod. As-welded ductility is limited, so avoid heavy cold forming of the weld zone.
What is the maximum service temperature of ER2519 AW-AA?
ER2519 AW-AA is rated for continuous use to about 150°C (302 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between ER2519-AW and ER2519 PWHT-T6?
AW is the default condition — use the as-deposited weld metal condition when 2519/2219 armour plate receives no post-weld heat treatment; expect 165 MPa yield, 290 MPa tensile and limited corrosion resistance. PWHT-T6: pick full post-weld solution treatment, quench and ageing on small parts to reach 275 MPa yield and 400 MPa tensile close to the base metal, accepting distortion and residual stress. Yield strength is 165 MPa in AW versus 275 MPa in PWHT-T6.
Sources
- AWS A5.10/A5.10M — Bare Aluminum and Aluminum-Alloy Welding Electrodes and Rods — AWS (2021)
- 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 — ASM International (1990)
- ASM Handbook Vol.6 — Welding, Brazing and Soldering (Aluminum Alloys) — ASM International (1993)
- MMPDS — Metallic Materials Properties Development and Standardization (2519 data) — Battelle/FAA (2022)
- Aluminum filler metal datasheets (ER2319/ER2519) — Lincoln Electric / ESAB / Hobart (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.