J421Fe18
Description:
J506Fe18 is a low-hydrogen iron-based coating of high-energy carbon steel electrode, deposition efficiency up to 180%, AC and DC. Deposited metal mechanical properties are good, stable arc, less splashing, easy slag removal, weld appearance. Suitable for flat welding, flat angle welding.
use:
For carbon steel and low alloy steel structure of the flat welding, fillet welding, such as 16Mn, 09Mn2Si and ships with A, B, D, E grade steel.
Deposited metal chemical composition (%)
| C | Mn | Si | S | P | Ni | Cr | Mo | V |
guarantee value | ≤0.15 | ≤1.60 | ≤0.90 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.20 | ≤0.30 | ≤0.08 |
Example value | 0.077 | 1.03 | 0.35 | 0.005 | 0.014 | 0.011 | 0.028 | 0.007 | 0.016 |
Deposited metal mechanical properties
Pilot projects | Rm (N / mm 2 ) | ReL (N / mm 2 ) | A (%) | KV 2 (J) |
-20 ° C |
guarantee value | ≥490 | ≥400 | ≥20 | ≥27 |
Example value | 535 | 430 | 26 | 189 |
X-ray inspection requirements:
Ⅱ level
Reference current (AC, DC + )
Electrode diameter (mm) | φ4.0 | φ5.0 |
Welding current (A) | 180 ~ 240 | 210 ~ 280 |
Precautions:
⒈ welding electrode to be baked by 350 ℃ 1h, with baking with the use.
⒉ weld before welding must be removed rust, oil, water and other impurities.
⒊ welding to be used when the short arc operation, should not swing.
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