NC-39L

Welding Electrode NC-39L

PREMIARC

NC-39L welding electrode, E309L-16 – Multipurpose welding electrode for joining carbon steel to inox steel. Suitable for all positions with AC/DC polarity.

Classification

AWS A5.4 E309L-16

Product Description

The NC-39L (E309L-16) electrode is specially designed for welding carbon steel to stainless steel. With a low carbon content (0.030%), this electrode is ideal for buffer coating and capping applications.

Compatible with AC and DC polarity, and supports all welding positions. High-quality weld results with a composition of 22%Cr – 12%Ni.

Product Specifications

ParametersDescription
Product NameWelding Electrode NC-39L
BrandKOBELCO
Electrode TypeWelding Electrodes for Stainless Steel
Welding Electrode Size2.6 mm, 3.2 mm, 4.0 mm
Weight Per Packaging20 Kg
AWS StandardAWS A5.4 E309L-16

General Characteristics

NC-39L, E309L-16

  • Designed for welding different metal joints (e.g., welding carbon steel to stainless steel)
  • Suitable for buffer layers in steel coating and sealing applications
  • This electrode can be used in both AC and DC polarities for all welding positions.
  • The deposited metal has a low carbon content, type 22%Cr – 12%Ni.
  • NC-39L offers a limited amount of carbon content, typically around 0.030%.

Welding Capability

Mechanical properties of all metals being welded

Product0.2% OS (MPa)TS (MPa)EL (%)IV (J)
NC-39L
Example410560420°C: 67
Guaranty≥ 520≥ 30

Welding Size and Current

Recommended Production Size and Welding Current

Electrode Diameter (mm)2.63.24.0
Electrode Length (mm)300350350
Current Range (Amp)
Flat position75 ~ 95A85 ~ 120A110 ~ 160A
Vertical & overhead70 ~ 90A80 ~ 115A90 ~ 140A

Chemical Properties

Chemical composition of all welded metals (mass %)

ProductCSiMnPSNiCr
NC-39L
Example0.040.421.60.03<0.0113.323.8
Guaranty≤ 0.04≤ 0.900.5 ~ 2.5≤ 0.04≤ 0.0312.0 ~ 14.022.0 ~ 25.0

Notes of Usages

  • Re-dry the electrodes at a temperature of 150°C – 200°C for 30 – 60 minutes before use.
  • Keep the arc length shorter to create sufficient protection for the weld pool to avoid porosity.
  • The width of the back-and-forth movement must be 2.5 times smaller than the diameter of the electrode to obtain adequate protection.
  • Use the recommended welding parameters to prevent the electrode from burning due to Joule heating.
  • No preheating is required for welding stainless steel, but the interlayer temperature must be maintained at 150°C.

Order NC-39L welding electrode now through the available contact services.

ISO certificate

ISO 9001:2015

ISO 14001:2015

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