Low Alloy High Tensile

JACKSUN ULTRA 18NI

AWS A5.5: E7018 G EN ISO 2560-A: E 42 4 B 42 G EN ISO 2560-B: E4918 G

Premium low-alloy, nickel-alloyed, high-tensile electrode designed for structural steels requiring enhanced toughness, especially in low-temperature or marine applications.
Produces smooth welds with excellent slag detachability.
Can be used on AC and DC+ polarity.
Suitable for bridges, shipbuilding, pipelines, and pressure vessels.

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

C	Mn	Si	S	Ni	Cr	P	Mo
≤ 0.15	≤1.00	≤ 0.80	≤ 0.030	0.50-1.0	≤0.30	≤ 0.035	≤0.20

2. Typical Mechanical Properties of Weld Metal

Property	UTS (MPa)	Yield Strength (MPa)	Elongation (%)	Impact Toughness (J @ 0 °C)
Typical Values	500 – 610	470 – 510	24 – 28	55 – 75

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

Size (mm)	Size (inch)	Current Range (A)	Polarity	Voltage (V)	Packing (5 kg)	Packing (20 kg)
2.5	3/32	60 – 100	AC / DC+	20 – 22	✔	✔
3.2	1/8	90 – 140	AC / DC+	22 – 24	✔	✔
4.0	5/32	130 – 190	AC / DC+	24 – 26	✔	✔
5.0	3/16	180 – 250	AC / DC+	26 – 28	✔	✔

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