J506D
Description:
J506D is a low-hydrogen-based coating of the bottom of the special carbon steel welding electrodes, AC and DC. Welding rod is characterized by a certain amount of electric arc blow, forming a single-sided welding double-sided welding, arc stability, easy slag removal, the back of the weld appearance, can be removed from the root and back welding, help to improve work efficiency, but not suitable Multi-layer welding.
use:
Dedicated to the bottom of the bottom of the groove of carbon steel and low alloy steel structure 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 | ≤0.75 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.20 | ≤0.30 | ≤0.08 |
Example value | 0.07 | 0.93 | 0.43 | 0.009 | 0.017 | 0.032 | 0.028 | 0.006 | 0.016 |
Deposited metal mechanical properties
Pilot projects | Rm (N / mm 2 ) | ReL (N / mm 2 ) | A (%) | KV 2 (J) |
-30 ° C |
guarantee value | ≥490 | ≥400 | ≥20 | ≥27 |
Example value | 530 | 435 | 26 | 90 |
X-ray inspection:
Ⅰ level
Reference current (back-welding) DC ±
Electrode diameter (mm) | φ2.5 | φ3.2 | φ4.0 |
Welding current (A) | 50 ~ 80 | 70 ~ 100 | 100 ~ 160 |
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 operation of short arc, not swinging to narrow welding is appropriate.
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