Stick Electrodes MTC MT-307 1.4370

Covered Electrodes MTC MT-307 1.4370

Rutile-coated stick electrode MTC MT-307 1.4370 for joining dissimilar steels and for build-up welding. Weld metal made of austenitic chromium-nickel-manganese steel for operating temperatures up to +300°C.

Standard Designation

Important Base Materials for Covered Electrodes MTC MT-307

Dissimilar steels (black-white joints); high-carbon and difficult-to-weld steel, manganese hard steel e.g. X 120 Mn 12 (1.3401); buffer layers for hardfacing.

Mechanical Properties of the Weld Metal (Typical Values)

Heat treatment Test temperature [°C] untreated +20°C (typical values) 0.2% yield strength Rp0.2 MPa 350 Tensile strength Rm MPa 500 Elongation A5 [%] 25 Impact energy AV [J] LNB

Special Notes

Maximum operating temperature for black-white joints +300°C. For prolonged annealing treatment above +300°C or for operating temperatures above +300°C, nickel-based welding consumables must be used. Weld metal hardens with cold working. Weld metal is scale resistant up to +850°C.

Approval

TÜV, CE

Welding Positions according to DIN EN ISO 6947

PA, PB, PC, PF

Current Type/Polarity

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