Welding wire MTC MT-309 1.4829

Welding rod/wire electrode made of austenitic chromium-nickel steel for TIG or MIG/MAG welding of heat-resistant steels. Weld metal is scaling-resistant up to +800°C.

Main areas of application

Dissimilar steels (black-white joints),

cladding and buffer layers.

Main

Heat- and scaling-resistant steels, e.g.

base materials

1.4710

G-X 30 CrSi 6

1.4825

G-X 25 CrNiSi 18 9

1.4729

G-X 40 CrSi 13

1.4828/1.2780

X 15 CrNiSi 20 12

1.4740

G-X 40 CrSi 17

1.4878

X 12 CrNiTi 18 9

Welding positions according to DIN EN ISO 6947 MIG

PA, PB, PF

Standard designation

Material number

1.4829

AWS/ASME SFA-5.9

ER 309 Si

EN ISO 14343-A

G/W 22 12H

Special notes

Cladding and buffer layers are corrosion-resistant starting from the first layer. Even with higher dilution rates, there is no risk of martensite formation (root welding). Operating temperatures for black-white joints are a maximum of +300°C. For prolonged annealing treatments above +300°C, nickel-base filler metals must be used.