Wires

ROYAL ARCPRO 12

AWS/ASME: A5.17 EL12

ROYAL ARCPRO 12 is a low-carbon, mild steel submerged arc welding wire classified as EL12.
Designed for welding unalloyed structural steels.
Produces smooth bead surface with uniform slag removal.
Ensures good mechanical properties for general fabrication work.
Widely used in boilers, shipbuilding, bridges, and pressure vessels.
Suitable for both DC and AC operations with neutral/basic fluxes.

1. Typical Chemical Composition of Weld Metal

C	Mn	Si	S	P	Fe
0.10 max	0.35 – 0.65	0.03 – 0.07	0.030 max	0.030 max	Balance

2. Typical Mechanical Properties of Weld Metal

Property	UTS (MPa)	Yield Strength (MPa)	Elongation (%)	Impact Toughness (J @ -20 °C)
Typical Values	440 – 480	350 – 380	25 – 30	35 – 60

3. Recommended Welding Parameters — SAW with EL12

Welding Position	Current (A)	Voltage (V)	Polarity	Wire Dia (mm)
Flat / Horizontal	300 – 900	28 – 40	AC / DCEP	2.0 – 6.0

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