WELD METAL 7018 is a basic-coated iron powder with low hydrogen electrodes, specially designed for welding medium-high-tensile steels with RADIOGRAPHIC quality welds. Weld metal recovery is at least 110%. Weld metal has excellent ductility and notch toughness down to minus 30°C, which is the greater and special characteristic of WELD METAL 7018 electrodes. The typical hydrogen content is 5 ml/100 grams to save the weld metal from cracking and provide good strength for the job.

 

APPLICATIONS

WELD METAL 7018: It is best to weld the following: storage tanks, blast furnace shells, pressure vessels, railway wagons, penstock, pipe lines, boilers, dynamic loading structures, hardenable low alloy steel, equipment subjected to high stress and dynamic loading, equipment that requires impact at minus -45°C, thick and heavy plates of carbon and high tensile steels.

 

CHEMICAL ANALYSIS OF ALL WELD METAL

Carbon%	Manganese%	Silicon%	Sulphur%	Phosphorous%
0.10 max	1.20–1.60	0.6 max	0.03 max	0.03 max

 

MECHANICAL PROPERTIES OF ALL WELD METAL

Yield strength	Ultimate Tensile Strength	Elongation%	CVN Impact at - 30°C
360 N/mm2 min	510-650 N/mm2	26% on 5D (min.)	30 Joules (min.)

 

CURRENT & CONDITIONS : USE AC 90 (OCV) OR DC (+) 

SIZE (mm)	2.50x350	3.15x450	4.00x450	5.00x450
Amps	70-100	120-160	140-200	200-240