Low Alloy Steel

ROYAL PRIME N2

AWS/ASME: A5.29 E81T1-Ni2

ROYAL PRIME N2 is a low alloy flux-cored wire with ~2% Nickel, specially designed for extreme low-temperature applications requiring high impact toughness down to –60°C. It is used extensively in LNG storage tanks, offshore structures, pipelines, shipbuilding, and pressure vessels operating in arctic environments.

Technical Data

Product Specifications

1. Typical Chemical Composition

CMnSiNiPS
0.03 – 0.120.50 – 1.500.20 – 0.801.75– 2.75≤0.03≤0.03

2. Typical Mechanical Properties

PropertyUTS (MPa)Yield Strength (MPa)Elongation (%)Impact Toughness
Typical Values570 – 690490 – 54020 – 2555 – 85 J @ –60°C

3. Recommended Welding Parameters — A5.29 E81T1-Ni2

Welding PositionCurrent (A)Voltage (V)Shielding GasGas Flow (L/min)
Flat / Horizontal170 – 35024 – 34100% CO₂ or Ar + 20–25% CO₂15 – 25
Vertical / Overhead140 – 28022 – 32100% CO₂ or Ar + 20–25% CO₂15 – 25
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