Flux

ROYAL FLUX 3

AWS/ASME: A5.17 F7A2-EH14

ROYAL FLUX 3 is a fused flux designed for use with EH14 submerged arc welding wire.
Produces welds of high strength with good impact toughness.
Excellent bead appearance, low spatter, and easy slag removal.
Designed for critical applications like pressure vessels, shipbuilding, structural steel, and heavy fabrication.
Good resistance to hydrogen-induced cracking.

1. Typical Chemical Composition of Weld Metal

C	Mn	Si	S	P
0.08 – 0.20	1.30 – 2.20	0.20	≤ 0.025	≤ 0.025

2. Typical Mechanical Properties of Weld Metal

Property	UTS (MPa)	Yield Strength (MPa)	Elongation (%)	Impact Toughness (J @ -20 °C)
Typical Values	570 – 630	500 – 560	24 – 30	45 – 70

3. Recommended Welding Parameters — AWS A5.17 F7A2-EH14

Welding Position	Current (A)	Voltage (V)	Polarity	Flux Consumption (kg/kg Wire)
Flat / Horizontal	400 – 1000	28 – 42	AC / DCEP	0.9 – 1.1

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