MasterWeld 309L Stainless Steel MMA Electrodes

Stock Code: W.0855

In Stock Order within 14 hrs 18 minutes for immediate dispatch
£72.00 inc VAT £60.00 ex VAT Per 2.0 Kg

Masterweld 309L is a general purpose stainless steel electrode of 23/12 type designed for joining dissimilar stainless steels, of the most common types, to one another. Primarily designed for fabrication applications where tolerance to dilution is exploited in joining 410, 304, 321, 316 to mild and low alloy steels for brackets, stiffeners etc. Also employed as a buffer layer on mild steels and used on clad plate applications extensively. Similar cast and wrought steels can also be welded if the service conditions are below 400°C. Has found its main usage in welding Cromweld CR12 for transportation construction.

Typical All Weld Metal Chemical Analysis:








0.03 0.76 0.55 0.008 0.016 24.24 12.70

Typical All Weld Metal Mechanical Properties: As Welded

Ultimate Tensile Strength

600 N/mm²



Hardness 210 BHN

Current: AC/DC (+)

Sizes Available and Recommended Amperages:

1.5mm 2.0mm 2.5mm 3.2mm 4.0mm 5.00mm 6.0mm 40-60 40-60 50-60 70-100 110-140 140-180 180-220


If allowed to become damp the electrodes should be re-dried for one hour at 250°C before use.

Customer reviews for MasterWeld 309L Stainless Steel MMA Electrodes

The are currently no reviews for this product

Please login to review this product.

© 2021 AES Industrial Supplies Limited

Company Registration: 07988136 Registered Office: Olympic House, Collett, Southmead Park, Didcot, Oxfordshire, United Kingdom, OX11 7WB


We have placed cookies on your device to help make this website better.