Carbon Steel Welding Electrode
J421
GB/T E4313
AWS A5.1 E6013
Description: J421 is a carbon steel electrode with high titanium and potassium coating. It can be used for all-position welding with AC and DC. It has high welding performance and is easy to restart the arc.
Application: Suitable for welding low carbon steel structures, especially suitable for intermittent welding of small pieces of thin plates and short welds and cover welding requiring smooth surfaces.
Chemical composition of weld metal(%):
|
C |
Mn |
Si |
S |
P |
|
≤0. 12 |
0.30~0.60 |
≤0.30 |
≤0.035 |
≤0.040 |
Mechanical properties of weld metal:
|
Test item |
Tensile strength Mpa |
Yield strength Mpa |
Elongation % |
Impact value (J) |
|
|
Normal Temp. |
0℃ |
||||
|
Guaranteed |
≥420 |
≥330 |
≥17 |
— |
— |
|
Tested |
460 ~ 540 |
≥340 |
18 ~ 26 |
50 ~ 75 |
≥47 |
X-ray inspection: II grade
Recommended current:
|
Rod diameter （mm） |
2.0 |
2.5 |
3.2 |
4.0 |
5.0 |
5.8 |
|
Welding current （A） |
40 ~ 70 |
50 ~ 80 |
80 ~ 120 |
150 ~ 190 |
180 ~ 240 |
220 ~ 280 |
Wenzhou Tianyu Electronic Co., Ltd. was established in 2000. We have been engaged in the manufacturing of welding electrodes, welding rods, and welding consumables for more than 20 years.
Our main products include stainless steel welding electrodes, carbon steel welding electrodes, low alloy welding electrodes, surfacing welding electrodes, nickel & cobalt alloy welding electrodes, mild steel & low alloy welding wires, stainless steel welding wires, gas-shielded flux cored wires, aluminum welding wires, submerged arc welding. wires, nickel & cobalt alloy welding wires, brass welding wires, TIG & MIG welding wires, tungsten electrodes, carbon gouging electrodes, and other welding accessories & consumables.
