Aluminium Welding Alloy 2319

Technical Data Sheet


Chemical Composition Limits
Weight% Al Cu Mn Zr Ti V Fe Si Zn Mg Others
2319 bal 5.8-6.8 0.20-0.40 0.10-0.25 0.10-0.20 0.05-0.15 0.30 max 0.20 max 0.10 max 0.02 max 0.15 max

Alloy 2319 is a Aluminium Filler alloy which was developed for use with Alloy 2219, which is an alloy that is commonly used in high strength structural and aircraft applications. Alloy 2319 is heat treatable and provides higher strength and better ductility than the 4xxx filler alloys when welding 2xxx alloys.

Aluminium MIG and TIG Welding wire and Rods

Used on 2219, 201, 206, 224, 2014, 2036, 2693, (2319 USA), H15, L119.
Al-Cu casting alloys.
Not to be used for welding 5xxx series alloys.
Cross-Reference of Specifications MSRR 9500/45 
AMS 4191D Aluminium Alloy, Welding Wire, UNS A92319
Alloy 2319
UNS A 92319
AWS A5.10.92, ER 2319, R 2319
Availability Ex stock MIG spools and TIG rods
For all stock availability contact Sales.

Weld Properties
Melting range   543 - 643 °C, Density 2.84 gm/cc
Hardness range  122 - 153 HV
ALLOY 2319 is a solid welding wire produced conventionally and then surface cleaned to remove standard metal working lubricants.
ALLOY 2319 is one of the few Al-Cu alloy filler metals available. This heat treatable alloy is used to fabricate Al-Cu casting alloys which are then subject to PWHT.

Return to Main Welding Page

At Aircraft Materials we specialise in the rapid turn-around of orders, with most stock items ready for shipping out the same day to anywhere in the world. For time-critical orders, such as AOGs use our AOG service desk (, the team are dedicated to processing and dispatching orders on the same day, even for cutting orders on bar and sheet products.

Our expertise in global logistics enables us to source material from anywhere in the world in a matter of days and provide fast shipping solutions to all our customers, whichever country they are in. We use a range of transport partners to ship overnight within the UK and Europe, and offer a full range of logistics solutions from priority express services to more cost-effective economy shipments all around the globe. To find out more about our services click here.

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.