Description:
J421Fe is a titanium powder coating of carbon steel electrodes. AC and DC dual-use, can be all-position welding. Has excellent welding process performance, spatter very few, re-arc easy, easy slag; weld appearance, high deposition efficiency.
use:
Welding general low-carbon steel structure, especially suitable for small pieces of sheet metal and short weld intermittent welding and weld surface requirements of smooth surface welding.
Deposited metal chemical composition (%)
C | Mn | Si | S | P | Ni | Cr | Mo | V | |
guarantee value | ≤0.20 | ≤1.20 | ≤1.00 | ≤0.035 | ≤0.040 | ≤0.30 | ≤0.20 | ≤0.30 | ≤0.08 |
Example value | 0.085 | 0.39 | 0.24 | 0.013 | 0.020 | 0.022 | 0.032 | 0.010 | 0.006 |
Deposited metal mechanical properties
Pilot projects | Rm (N / mm 2 ) | ReL (N / mm 2 ) | A (%) | KV 2 (J) |
Room temperature | ||||
guarantee value | ≥430 | ≥330 | ≥16 | - |
Example value | 490 | 420 | 30 | 79 |
X-ray inspection:
Ⅱ level
Reference current (AC, DC)
Electrode diameter (mm) | φ3.2 | φ4.0 | φ5.0 |
Welding current (A) | 100 ~ 150 | 150 ~ 220 | 180 ~ 240 |
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