Low Hydrogen

JACKSUN ULTRA 16W

AWS A5.1: E7016

Special low hydrogen, basic coated electrode designed for welding of structural steels, pipelines, boilers, and water pipelines (W grade variant).
Produces welds with excellent toughness and crack resistance.
Smooth, stable arc with minimal spatter and easy slag detachability.
Designed for all-position welding (except vertical down).
Especially suitable for critical applications requiring X-ray quality welds in water pipelines, structural construction, and pressure vessels.

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

C	Mn	Si	S	Ni	Cr	P	Mo	V
≤ 0.15	0.40-1.60	≤ 0.75	≤ 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 @ -30 °C)
Typical Values	520 – 570	430 – 470	25 – 32	45 – 65

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 – 90	AC / DC+	20 – 22	✔	✔
3.2	1/8	90 – 130	AC / DC+	22 – 24	✔	✔
4.0	5/32	120 – 170	AC / DC+	24 – 26	✔	✔
5.0	3/16	150 – 220	AC / DC+	26 – 28	✔	✔

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Tested for consistent performance.

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