Carbon Steel

ROYAL PRIME 91T-GS

AWS/ASME: A5.20 E71T-GS

ROYAL PRIME 91T-GS is a self-shielded flux cored wire designed for single-pass and limited multipass welding of carbon steels.
No external shielding gas required (ideal for outdoor welding).
Smooth arc action with easy slag removal.
Designed for thin-gauge mild steel welding (automotive repair, fabrication, maintenance).
All-position welding capability (except overhead on thicker plates).
Excellent operator appeal with minimal spatter and good bead appearance.

1. Typical Chemical Composition of Weld Metal (% by weight)

C	Mn	Si	S + P	Fe
0.06 – 0.12	0.9 – 1.6	0.2 – 0.9	≤ 0.03	Balance

2. Typical Mechanical Properties of Weld Metal

Property	UTS (MPa)	Yield Strength (MPa)	Elongation (%)	Impact Toughness (J @ -20 °C)
Typical Values	500 – 560	420 – 460	24 – 28	27 – 35

3. Recommended Welding Parameters — A5.20 E71T-GS

Welding Position	Current (A)	Voltage (V)	Shielding Gas	Gas Flow (L/min)
Flat / Horizontal	70 – 180	17 – 22	Self-shielded (No external gas)	Not required
Vertical / Overhead	60 – 140	16 – 20	Self-shielded (No external gas)	Not required

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