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Stainless Steel

JACKSUN NOVA 2594

AWS A5.4: E2594-16

JACKSUN NOVA 2594 is a rutile-coated, super duplex stainless steel electrode, classified under AWS A5.4 E2594-16 and EN ISO 3581-A E 25 9 4 N L R 26.

  • Specially developed for welding super duplex stainless steels (UNS S32750 / S32760 / S32707).
  • Provides very high tensile strength and excellent impact toughness.
  • Designed for critical service environments: seawater, chloride-bearing solutions, and highly aggressive chemical plants.
  • Ensures a balanced ferrite-austenite structure in the weld deposit.
  • PREN (Pitting Resistance Equivalent Number) > 40–45, much higher than standard duplex and even higher than E2593.
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Technical Data

Product Specifications

1. Typical Chemical Composition

ElementCMnSiCrNiMoNCuPSCu
%≤ 0.030.5 – 2.0≤ 1.024.0 – 27.08.5 – 10.53.5 – 4.50.24 – 0.32≤ 1.0≤ 0.03≤ 0.020.75

2. Typical Mechanical Properties (As-Welded)

PropertyUTS (MPa)Yield Strength (MPa)Elongation (%)Impact Toughness (J @ –40°C)Ferrite Content (FN)
Requirement≥ 750≥ 550≥ 15—30 – 55
Typical Values800 – 880600 – 65018 – 30> 7035 – 45

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

Size (mm)Size (inch)Current Range (A)PolarityVoltage (V)Packing (5 kg)Packing (20 kg)
2.53/3270 – 100AC / DCEP20 – 22✔✔
3.21/890 – 130AC / DCEP22 – 24✔✔
4.05/32120 – 170AC / DCEP24 – 26✔✔
5.03/16160 – 210AC / DCEP26 – 28✔✔
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