Aluminum ER2519-AW (As-welded deposit)
Heat-treated state · default condition
ASTM AWS A5.10 ER2519
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.
Values for the AW 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 |
|---|---|---|---|---|---|---|
AWDefaultThis page 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 |
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?
ER2519-AW is ER2519 heat treated to AW — 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. ER2519-AW has a yield strength of 165 MPa (23.9 ksi) and a tensile strength of 290 MPa (42.1 ksi) — weaker than 58% of aluminum grades. Elongation at break is 7% and the elastic modulus is 73 GPa (10.6 Msi). ER2519-AW 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).
Limitations
- Needs corrosion protection — 35/100, worse than 85% of aluminum grades
- Low electrical conductivity — 29 % IACS, worse than 78% of aluminum grades
- Hard to polish — 45/100, worse than 76% of aluminum grades
ER2519-AW properties
Typical room-temperature values for ER2519-AW; 11 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 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 has a yield strength of 165 MPa (23.9 ksi) and a tensile strength of 290 MPa (42.1 ksi) — weaker than 58% of aluminum grades. Elongation at break is 7% and the elastic modulus is 73 GPa (10.6 Msi).
Thermal6
ER2519-AW is rated for continuous service to 150°C (302 °F). It conducts heat at 125 W/m·K (72.2 BTU/hr·ft·°F), worse than 72% of aluminum grades. Thermal expansion is 22.3 µm/m·K (12.4 µin/in·°F).
Electrical3
ER2519-AW conducts electricity at 29 % IACS, worse than 78% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (35/100), worse than 85% of aluminum grades.
Sustainability4
Producing a kilogram of ER2519-AW 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's machinability is good (65/100, better than 62% of aluminum grades); weldability good (65/100); formability fair (45/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with ER2519-AW
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 — frequently asked
What is ER2519-AW used for?
ER2519-AW 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?
ER2519-AW has a typical yield strength of 165 MPa (23.9 ksi) and a tensile strength of 290 MPa (42.1 ksi) — weaker than 58% of aluminum grades. Strength varies by condition: see the 3 listed tempers.
Is ER2519-AW easy to machine?
Reasonably — machinability is rated good (65/100, better than 62% 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 be welded?
Yes — weldability is rated good (65/100). 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?
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 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?
ER2519-AW 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.