Low Alloy Steel

ROYAL PRIME 91T-1

AWS/ASME: A5.29 E91T1-G

ROYAL PRIME E91T1-G is a flux-cored wire designed for:Welding low alloy steels requiring high strength welds.Excellent arc stability and smooth bead appearance in all positions.High mechanical properties for structural steel, pressure vessels, bridges, and offshore structures.Minimizes hydrogen-induced cracking with controlled low hydrogen content.Typical Chemical CompositionTypical Mechanical PropertiesRecommended Welding Parameters — A5.29 E91T1-G

Technical Data

Product Specifications

1. Typical Chemical Composition

CMnSiNiPSNiCrMo
0.50 – 1.750.20 – 0.801.75– 2.75≤0.03≤0.03≤0.50≤0.30≤0.20

2. Typical Mechanical Properties

PropertyUTS (MPa)Yield Strength (MPa)Elongation (%)Impact Toughness (J @ -20 °C)
Typical Values600 – 680520 – 61022 – 2635 – 50

3. Recommended Welding Parameters — A5.29 E91T1-G

Welding PositionCurrent (A)Voltage (V)Shielding GasGas Flow (L/min)Polarity
Flat / Horizontal200 – 32026 – 32100% CO₂ or Ar + CO₂ (75/25)15 – 25DCEP
Vertical / Overhead160 – 28025 – 30100% CO₂ or Ar + CO₂ (75/25)15 – 25DCEP
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