J656NiCrL
Description:
J656NiCrL is a low hydrogen potassium type coating of high corrosion resistance weathering steel electrode, AC-DC dual-use, can be all-position welding, the deposited metal has good resistance to atmospheric corrosion, crack resistance and good ductility and toughness.
use:
Suitable for welding 650N / mm 2 high corrosion resistant weathering grade steel such as S450EW.
Deposited metal chemical composition (%)
| C | Mn | Si | S | P | Cr | Ni | Cu |
guarantee value | ≤0.05 | ≤1.20 | ≤0.60 | ≤ 0.010 | ≤0.020 | 1.00 ~ 2.00 | 3.00 ~ 5.00 | ≤0.40 |
Example value | 0.024 | 0.42 | 0.19 | 0.007 | 0.017 | 1.16 | 3.20 | 0.26 |
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 | ≥650 | ≥500 | ≥15 | ≥34 |
Example value | 665 | 585 | 21.5 | 120 |
Medicine skin moisture content:
≤0.15%
X-ray inspection:
I level
Reference current (AC, DC + )
Electrode diameter (mm) | φ3.2 | φ4.0 | φ5.0 |
Welding current (A) | 90 ~ 140 | 150 ~ 190 | 180 ~ 220 |
Precautions:
1. Before welding electrode to be about 350 ℃ baking 1h, with flood with.
⒉ solder before welding should 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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