J502NiCu
Description:
J506WCu is a low-hydrogen weathering-resistant, low-alloy weathering steel electrode. AC and DC dual-use, can be all-position welding. The deposited metal has good resistance to atmospheric corrosion and mechanical properties and crack resistance.
use:
For carbon steel and 490N / mm 2 Welding Tensile strength level weathering steel, such as rolling stock welded structure, offshore engineering, bridges and the like.
Deposited metal chemical composition (%)
| C | Mn | Si | S | P | W | Cu |
guarantee value | ≤0.12 | 0.30 ~ 0.90 | ≤0.70 | ≤0.030 | ≤0.035 | 0.20 ~ 0.50 | 0.20 ~ 0.50 |
Example value | 0.066 | 0.84 | 0.21 | 0.007 | 0.016 | 0.30 | 0.36 |
Deposited metal mechanical properties (welded)
Pilot projects | Rm (N / mm 2 ) | ReL / Rp 0.2 (N / mm 2 ) | A (%) | KV 2 (J) |
-40 ℃ |
guarantee value | ≥490 | ≥ 390 | ≥22 | ≥27 |
Example value | 545 | 439 | 29 | 120 |
X-ray inspection requirements:
Ⅰ level
Reference current (AC, DC + )
Electrode diameter (mm) | φ3.2 | φ4.0 | φ5.0 |
Welding current (A) | 90 ~ 130 | 150 ~ 190 | 180 ~ 230 |
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 operation required to use a short arc to narrow the welding is appropriate.
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