Mild Steel

JACKSUN ULTRA 24

AWS A5.1: E7024

Heavy-coated iron powder rutile electrode designed for high deposition welding.
Produces flat, smooth weld beads with excellent slag detachability.
Ideal for flat and horizontal fillet welds (not suitable for vertical or overhead).
Delivers very high deposition efficiency (up to 180% recovery).
Commonly used in structural fabrication, shipbuilding, tanks, bridges, and heavy steel constructions.

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

C	Mn	Si	S	Ni	Cr	P	Mo	V
≤ 0.15	≤1.25	≤ 0.90	≤ 0.030	0.30	0.20	≤ 0.035	0.30	0.08

2. Typical Mechanical Properties of Weld Metal

Property	UTS (MPa)	Yield Strength (MPa)	Elongation (%)	Impact Toughness (J @ 0 °C)
Typical Values	500 – 570	420 – 470	20 – 28	40 – 55

3. Dimension, Current Condition & Packing Data (SMAW Welding)

Size (mm)	Size (inch)	Current Range (A)	Polarity	Voltage (V)	Packing (5 kg)	Packing (20 kg)
3.2	1/8	100 – 180	AC / DC+	22 – 26	✔	✔
4.0	5/32	160 – 260	AC / DC+	24 – 28	✔	✔
5.0	3/16	220 – 340	AC / DC+	26 – 30	✔	✔
6.0	1/4	280 – 450	AC / DC+	28 – 32	✔	✔

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