Stick Electrodes MTC MT-309L 1.4332

Stick Electrodes MTC MT-309L 1.4332

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

Standard Designation

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

Dissimilar steels (black-white connections), 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 (Typical Values)

(Typical 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 A5 [%] 35 Impact strength AV [J] 65

Special Notes

Claddings and buffer layers are corrosion-resistant even in the first layer. No risk of martensite formation (root welding) even with higher dilution. Operating temperatures for black-white connections max. +300°C. For longer annealing treatments or operating temperatures above +300°C, nickel-based 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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