The ER80S-Ni3 is an AWS classification for a low-alloy steel welding filler wire that contains approximately 3.5% nickel, designed for welding fine-grained and nickel steels requiring exceptional impact toughness at very low temperatures (down to -100°C).
Key Features and Properties
Classification: It conforms to the AWS A5.28 and ASME SFA 5.28 standards under the classification ER80S-Ni3.
Material Composition: It is a low-alloy solid steel wire with the main alloying element being nickel (Ni) at 2.40% to 3.70%. It also contains specific amounts of carbon, manganese, and silicon.
Mechanical Properties: The as-welded metal typically has a high ultimate tensile strength of around 88,000 psi (620 MPa) and provides excellent notch toughness at low temperatures (e.g., 38 ft-lbs average impact strength at -60°C).
Welding Processes: It can be used as an electrode or a rod ("ER" designation) in Gas Tungsten Arc Welding (GTAW or TIG) and Gas Metal Arc Welding (GMAW or MIG) processes.
Typical Applications
The ER80S-Ni3 welding wire is specifically used in applications that require strength and durability in cryogenic or extremely cold environments.
Construction of cryogenic plants and associated pipework.
Manufacture, storage, and distribution of liquefied gases like propane and butane.
Welding of fine-grained and 3.5% nickel steels, such as ASTM A203 Grades D & E.
Pressure vessels, heat exchangers, and tanks operating at temperatures as low as -80°C to -100°C.
Additional Information
Delivery Time3 - 4 Days
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