Low carbon steel electrode KT-421 – Ø 2.5

1. EQUIVALENT STANDARD AND CONFORMITY
⇒ Vietnamese standard: TCVN: 3223-2000-431R.
⇒ Vietnamese regulation: QCVN 21:2010/BGTVT-MW2
⇒ American Standard: ASME/AWS E 6013
⇒ Japanese Standard: JIS D4313

2. CHARACTERISTICS AND APPLICATION
⇒ KT-421 cover is made in Titanium system to ensure for good welding process.
⇒ KT-421 is low carbon welding rod suitable for carbon steel weld and low aloy steel with medium load structure such as: industrial workshop structure, machine parts, handrail, iron doors…
⇒ Bright welds, easy to peel, clean peeling slag, lightweight electricity, less smoke, less splash.
⇒ May be welded in any welding position: hammer welding, horizonal welding, ceiling welding…
⇒ Good arc-sensitivities, with maximum stopping time of no less than 60 seconds.

3. PACKAGING SPECIFICATION

4. MECHANICAL PROPERTIES OF WELD

5. CHEMICAL COMPOSITION OF WELDING METAL LAYER (%)

6. DIMENSION OF WELDING RODS AND USED CURRENT (AC & DC)

7. INSTRUCTIONS FOR USE
⇒ Fully preparing the elements of labor safety before welding. Welding power source is stable.
⇒ When the welding rod is moist, welding is vulnerable to smoke, splashed and unstable, weld is clarified, need to dry at 100oC – 150oC in 40 – 60 minutes before use.
⇒ Removing all traces of oil, dust and dirt on the surface of the welding material.
⇒ Making sure the weld gap, bevelled edge of welding materials as prescribed to achieve strong weld.
⇒ Selecting the welding line according to the instructions to obtain the deep weld, high working ability.