J606
Description:
J807 is a low hydrogen sodium type of low alloy high strength steel electrodes, the use of DC reverse, all-position welding. Has excellent process performance and crack resistance.
use:
Mainly used for 14MnMoNbB steel and the corresponding strength level of low-alloy high-strength steel structure welding.
Deposited metal chemical composition (%)
| C | Mn | Si | S | P | Mo |
guarantee value | ≤0.09 | ≤2.00 | ≤0.40 | ≤0.030 | ≤0.030 | 0.80 ~ 1.00 |
Deposited metal mechanical properties
Pilot projects | Rm (N / mm 2 ) | ReL / Rp0.2 (N / mm 2 ) | A (%) | KV 2 (J) at room temperature |
guarantee value | ≥780 | ≥690 | ≥13 | ≥27 |
X-ray inspection:
I level
Deposited metal diffusion hydrogen content: ≤ 4.0ml / 100g (glycerol method)
Reference current (AC, DC + )
Electrode diameter (mm) | φ3.2 | φ4.0 | φ5.0 |
Welding current (A) | 90 ~ 120 | 140 ~ 180 | 170 ~ 220 |
Precautions:
1. Before welding electrode to be 400 ℃ baking 1h, with baking with.
2. Welder must be welded before the removal of rust, oil, water and other impurities.
3. Welding with short arc operation, the weld should not be too wide. 2-3 times the diameter of the electrode is appropriate.
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