Carbon Steel Welding Electrode
J421X
GB/T E4313
AWS A5.1 E6013
Description: J421X is a high-titanium-potassium-coated electrode for carbon steel welding applications. It can operate in a vertical-down position, and suitable for all-position welding with excellent welding performances, and can be used for both AC and DC. The weld is smooth and neat. The arc is stable and easy to re-strike, slag can be easily removed.
Application: It applies to welding ship carbon steel and galvanized steel plate as well, in particular, applies welding of the thin plate in a vertical-down position and discontinuous welding application.
Chemical composition of weld metal(%):
|
C |
Mn |
Si |
S |
P |
|
≈0.08 |
≈0.5 |
≈0.25 |
≤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 |
370 ~ 420 |
≈25 |
≈80 |
≈70 |
X-ray inspection: II grade
Recommended current:
|
Rod diameter （mm） |
2.0 |
2.5 |
3.2 |
4.0 |
5.0 |
|
Welding current （A） |
50 ~ 70 |
60 ~ 100 |
80 ~ 150 |
160 ~ 200 |
180 ~ 250 |
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.
