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Stainless Steel

JACKSUN NOVA 309MoL

AWS A5.4: E309MoL-16

JACKSUN NOVA 309MoL is a rutile-coated stainless steel electrode conforming to AWS A5.4 E309MoL-16 and EN ISO 3581-A E 23 12 2 LR 12.

  • Designed for dissimilar welding of carbon steels/low alloy steels to stainless steels, buffer layers, and stainless cladding.
  • Molybdenum (2–3%) improves resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride environments.
  • Low carbon (L grade) ensures resistance against intergranular carbide precipitation, maintaining corrosion resistance at high service temperatures.
  • Smooth arc, easy slag removal, and excellent bead finish.
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Technical Data

Product Specifications

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

CMnSiCrNiMoSPCu
≤ 0.040.5 – 2.5≤ 1.022.0 – 25.012.0 – 14.02.0 – 3.0≤ 0.03≤ 0.040.75

2. Mechanical Properties of Weld Metal

PropertyUTS (MPa)Proof Strength (MPa)Elongation (%)Impact Toughness (J at RT)
Requirement≥ 520≥ 320≥ 30≥ 47
Typical Values520 – 550330 – 37031 – 3555 – 70

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 – 25✔✔
3.21/880 – 120AC/DCEP22 – 28✔✔
4.05/32100 – 150AC/DCEP24 – 30✔✔
5.03/16130 – 180AC/DCEP26 – 32✔✔
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