NC-38

Welding Electrode NC-38

PREMIARC

NC-38 welding electrode KOBE Steel, E308-16 – High-quality welding electrode with calcium-titanium flux for precise welding results. Suitable for all welding positions, resistant to corrosion and extreme temperatures. Ideal for industrial and manufacturing applications.

Classification

AWS A5.4 E308-16

Product Description

The NC-38 (E308-16) welding electrode is a reliable choice for precision welding in a variety of temperature conditions. With calcium-titania flux, this electrode offers strong, crack-resistant welds, as well as heat and corrosion resistance.

Compatible with AC and DC-EP, suitable for use in all welding positions. Improve the quality of your projects with the outstanding performance of the NC-38!

Product Specifications

ParametersDescription
Product NameWelding Electrode NC-38
BrandKOBELCO
Main ApplicationWelding electrodes for stainless steel
Welding Electrode Size2.6 mm, 3.2 mm, 4.0 mm
Welding ProcessSMAW
Weight Per Packaging20 Kg
PolarityAC, DCEP
AWS StandardAWS A5.4 E308-16
Re-Drying Conditions150–200°C for 0.5–1 hour
Identification ColorFirst color: Yellow

Work Ability

  • NC-38 is a calcium-titania flux type welding electrode, which provides structured weld joints.
  • Suitable for various applications at low and high temperatures.
  • This electrode is suitable for welding with AC and DC-EP polarity in all welding positions.
  • It has excellent anti-shatter strength, heat resistance, corrosion resistance, and good mechanical properties (A.W).

Welding Parameters (A)

Recommended Production Size and Welding Current

φ mm1F, 1G, 2F, 2G (A)3G Uphill, 4G (A)
2.050–7545–65
2.675–9570–90
3.285–12080–115
4.0110–16090–140
5.0150–200

Welding Positions

posisi pengelasan kawat las kobe nc-38

The KOBELCO NC-38 welding electrode can be used in various welding positions, offering flexibility for fabrication, construction, and maintenance work.

This electrode supports welding in flat, horizontal, vertical-up, and overhead positions, delivering stable weld results.

  • 1F (Flat Fillet)
  • 1G (Flat Groove)
  • 2F (Horizontal Fillet)
  • 2G (Horizontal Groove)
  • 3G Uphill (Vertical Groove Up)
  • 4G (Overhead Groove)

Mechanical Properties of Weld Metal

Mechanical properties of all metals being welded

ParametersTypical Value (AC)Guaranty
0.2% Yield Strength (0.2% YS)410 MPa
Tensile Strength (TS)600 MPa≥ 552 MPa
Elongation (El.) at 4d46%≥ 30%
Charpy V-notch impact value at 0°C (IV)74 J

Chemical Composition of Weld Metal

The chemical composition of the weld metal (all-weld metal) indicates the content of key elements in the weld deposit that influence corrosion resistance, mechanical strength, and the performance of the welded joint.

This data presents typical test results and guaranteed compositional limits in accordance with standards.

ElementTypical Value (AC)Guaranty
Carbon (C)0.06Max. 0.08
Silikon (Si)0.37Max. 1.00
Manganese (Mn)1.50.50–2.50
Phosphorus (P)0.03Max. 0.04
Sulfur (S)<0.01Max. 0.03
Nickel (Ni)9.49.0–11.0
Chromium (Cr)20.018.0–21.0
Molybdenum (Mo)0.16Max. 0.75
Copper (Cu)0.08Max. 0.75

Packaging Data

φ mmLength (mm)kg/packkg/cartong/piececarton mm
2.025022011300W, 125H, 280L
2.630022020300W, 95H, 330L
3.235052036175W, 115H, 380L
4.035052055175W, 115H, 380L
5.035052082175W, 115H, 380L

Certification Approval

CertificationShipping Approval
ABSMG (AWS A5.4 E308-16)
DNVVL308
NK (AC)KD308

Note: The NK certification applies to use with AC current.

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, thereby preventing porosity.
  • The width of the movement (weaving) 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 now KOBELCO NC-38 welding electrode for your stainless steel needs.

ISO certificate

ISO 9001:2015

ISO 14001:2015

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