Stick Electrodes MTC MT-309L 1.4332

MTC MT-309L 1.4332 Stick Electrodes

Rutile-coated MTC MT-309L 1.4332 stick electrode for welding stainless claddings and dissimilar steels. Weld metal made of austenitic chromium-nickel steel with an extra-low carbon content for operating temperatures up to +300°C.

Standard Designation

Important Base Materials for MTC MT-309L 1.4332 Stick Electrodes

Dissimilar steels (black-white joints), claddings and buffer layers. 1.4710 G-X 30 CrSi 6 1.4825 G-X 25 CrNiSi 18 9 1.4729 G-X 40 CrSi 13 1.2780 X 15 CrNiSi 20 12 1.4740 G-X 40 CrSi 17 1.4828 X 15 CrNiSi 20 12 1.4878 X 12 CrNiTi 18 9

Mechanical Properties of the Weld Metal (Guide Values)

(Guide values) Heat treatment Test temperature [°C] untreated +20°C 0.2% yield strength Rp0.2 MPa 320 1.0% yield strength Rp1.0 MPa 340 Tensile strength Rm MPa 540 Elongation at break A5 [%] 35 Notch impact energy AV [J] 65

Special Instructions

Claddings and buffer layers are corrosion-resistant from the first layer. No risk of martensite formation even with higher dilution rates (root welding). Operating temperatures for black-white joints maximum +300°C. For prolonged annealing treatments or operating temperatures above +300°C, nickel-base welding consumables must be used.

Welding Positions according to DIN EN ISO 6947

PA, PB, PC, PE, PF

Current Type/Polarity

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