Use & Application
Consumables designed for welding low-alloy steels with 3,5% Ni. Suitable for the construction of cryogenic plant and pipework in petrochemical industry and for general low temperature applications down to -80°C. Preheat according to base material and thickness. Although AWS consumable specifications require PWHT many fabrications will be left as-welded. The need for PWHT will generally be determined by applicable design codes.
Alloy type
Nominally 3,5%Ni low alloy steels.
Microstructure
In the as-welded condition the microstructure is ferritic with a component of acicular ferrite for optimum toughness.
Materials to be welded

Low temperature applications, fine-grained steels that contain up to 3.5% Nickel.
ASTM: A203 gr. D, E, F, A350 gr. LF3, A352 gr. LC3, A333 Gr. 3.
UNS: K22103, K21703, J42015.

Products of the line 3Ni

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