J556NiCrCu
Description:
J507Mo is a low hydrogen sodium type coating, H2S corrosion resistant low alloy steel electrode. Using DC reverse, can be full position welding. The deposited metal has good corrosion resistance and crack resistance, welding process performance is good.
use:
For Mo, V or low Al and other elements of corrosion-resistant steel. Such as 12CrMoVAl and anti-400 ℃ high temperature S, H2S corrosion of steel welding.
Deposited metal chemical composition (%)
| C | Mn | Si | S | P | Mo | V |
guarantee value | ≤0.10 | ≤1.6 | ≤0.90 | ≤0.035 | ≤0.035 | 0.30 ~ 0.80 | ≤0.20 |
Example value | 0.054 | 0.78 | 0.27 | 0.011 | 0.018 | 0.46 | 0.11 |
Deposited metal mechanical properties (620 ℃ × 1h)
Pilot projects | Rm (N / mm 2 ) | ReL / Rp 0.2 (N / mm 2 ) | A (%) | KV 2 (J) |
-30 ° C |
guarantee value | ≥490 | ≥400 | ≥20 | ≥27 |
Example value | 560 | 460 | 30 | 132 |
X-ray detection: I level
Reference current (DC + )
Electrode diameter (mm) | φ2.5 | φ3.2 | φ4.0 | φ5.0 |
Welding current (A) | 60 ~ 90 | 90 ~ 130 | 110 ~ 180 | 160 ~ 210 |
Precautions:
⒈ welding electrode to be about 350 ℃ baking 1h, with the baking with the use.
2. Welder should be removed before welding rust, oil, water and other impurities.
3. Welding with short arc operation, narrow channel is appropriate.
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