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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.
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Technical Data

Product Specifications

1. Typical Chemical Composition

CMnSiSNiCrPMo
≤ 0.15≤1.00≤ 0.80≤ 0.0300.50-1.0≤0.30≤ 0.035≤0.20

2. Typical Mechanical Properties

PropertyUTS (MPa)Yield Strength (MPa)Elongation (%)Impact Toughness (J @ 0 °C)
Requirement≥ 490≥ 450≥ 22≥ 47
Typical Values500 – 610470 – 51024 – 2855 – 75

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

Size (mm)Size (inch)Current Range (A)PolarityVoltage (V)Packing (5 kg)Packing (20 kg)
2.53/3260 – 100AC / DC+20 – 22✔✔
3.21/890 – 140AC / DC+22 – 24✔✔
4.05/32130 – 190AC / DC+24 – 26✔✔
5.03/16180 – 250AC / DC+26 – 28✔✔
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