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Stainless Steel

JACKSUN NOVA 307

AWS A5.4: E307-16 (Nr.)

JACKSUN NOVA 307 is a rutile-coated stainless steel electrode conforming to AWS A5.4 E307-16 (Nr.) and EN ISO 3581-A E 18 8 Mn R 12.

  • Designed for welding dissimilar steels (e.g., carbon steel to stainless steel, stainless steel to low-alloy steel).
  • High Mn and Cr-Ni austenitic weld deposit, giving excellent toughness and crack resistance, even on difficult-to-weld steels.
  • Recommended for joining hard-to-weld steels, buffer layers, and repair welding of unknown steels.
  • The (Nr.) suffix indicates nuclear grade quality, with stringent control over ferrite, impurities, and toughness.
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Technical Data

Product Specifications

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

CMnSiCrNiMoPSCu
≤ 0.124.0 – 5.0≤ 1.018.0 – 21.08.0 – 10.5≤ 1.5≤ 0.04≤ 0.030.75

2. Mechanical Properties of Weld Metal

PropertyUTS (MPa)Proof Strength (MPa)Elongation (%)Impact Toughness (J)
Requirement≥ 590≥ 320≥ 30≥ 47 (at -20°C)
Typical Values580 – 620340 – 37030 – 3560 – 80

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 – 90AC / DCEP20 – 24✔✔
3.21/880 – 120AC / DCEP22 – 26✔✔
4.05/32110 – 160AC / DCEP24 – 28✔✔
5.03/16140 – 200AC / DCEP26 – 30✔✔
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