J507R
Description:
J507Fe16 is a low-sodium sodium type iron coating of high-efficiency carbon steel electrode. Deposit efficiency can reach about 160%. DC reverse, suitable for flat welding, fillet welding. Deposited metal mechanical properties are good, stable arc, less splashing, easy slag removal, weld appearance.
use:
For the flat welding of carbon steel and low alloy steel structures, fillet welding, such as 16Mn, 09Mn2Si, 09Mn2V 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 | 0.086 | 1.13 | 0.55 | 0.012 | 0.021 | 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 | 560 | 450 | 30 | 147 |
X-ray inspection:
Ⅱ level
Reference current (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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