Solid Wire
ER80S-Ni2 Welding Wire
ER80S-Ni2 is a copper-coated nickel-alloy low carbon solid wire for GMAW (MIG/MAG) and GTAW (TIG). It is specially formulated with 2% nickel content, providi...
ER80S-Ni2
ER80S-Ni2 is a copper-coated nickel-alloy low carbon solid wire for GMAW (MIG/MAG) and GTAW (TIG). It is specially formulated with 2% nickel content, providing excellent low-temperature toughness, stable mechanical properties and superior crack resistance for low-temperature service steel welding.
Features
• Nickel alloyed design significantly improves weld metal low-temperature impact toughness, maintaining stable toughness under ultra-low temperature working conditions.
• Excellent resistance to cold cracking and brittle fracture, reliable performance for low-temperature pressure vessel and structural welding.
• Stable arc combustion, low spatter rate and uniform and smooth weld bead, bringing convenient welding operation and fewer post-weld treatments.
• Consistent chemical composition and mechanical properties, fully meeting standard requirements for low-temperature engineering welding structures.
Diameter & Packaging
MIG：0.8 / 1.0 / 1.2 / 1.6 mm 5KG Spool / 15KG Spool
TIG：2.0 / 2.4 / 3.2 mm 5kg plastic tube
Welding Parameters
Polarity: DC+ (DCRP)
Shielding Gas
MIG/MAG: Ar + 5%~15% CO₂, Flow rate: 15–20 L/min
TIG: Pure Argon (99.99%)
Preheat & Interpass Temperature
80~120 ℃ for thick plates or high-restraint joints to prevent hydrogen-induced cold cracking.
Typical Φ1.2 mm MAG parameters: Current 150~210 A; Voltage 21~25 V
Deposited Metal Mechanical Properties
Tensile Strength: ≥550 MPa (80 ksi)
Yield Strength: ≥470 MPa
Elongation: ≥18 %
Charpy V-notch: ≥60 J (-40℃)
Applications
Suitable for welding low-temperature carbon steels and nickel-containing low-alloy steels including A516 Gr60/70, 16MnDR and L245-L360 pipeline steel. Widely used in low-temperature pressure vessels, cryogenic storage tanks, petrochemical low-temperature equipment and cold-resistant engineering structures.
Welding Precautions
• Dedicated for low-temperature resistant steel structural welding; not applicable for high-temperature heat-resistant steel or stainless steel welding.
• Remove all oil, rust, scale and moisture from the groove and surrounding base metal to avoid porosity and inclusions defects.
• Maintain reasonable preheat and interpass temperature during welding to effectively avoid brittle fracture and cold cracking.
• Avoid excessive heat input to prevent grain coarsening and attenuation of low-temperature toughness of weld metal.
• Select matching low-temperature impact inspection standards according to actual service temperature of the workpiece.