J507Fe16
Description:
J507CrNi is a low hydrogen sodium sodium salt resistant seawater corrosion of low alloy steel electrode with good ductility, low temperature toughness and resistance to seawater corrosion performance, the use of DC reverse, all-position welding.
use:
Suitable for Q235, 16Mn and Cr-Al systems and other seawater corrosion-resistant marine important structure of the welding.
Deposited metal chemical composition (%)
| C | Mn | Si | S | P | Cr | Ni | Cu |
guarantee value | ≤0.10 | ≤1.60 | ≤0.90 | ≤0.035 | ≤0.035 | 0.50 ~ 0.90 | 0.20 ~ 0.50 | 0.20 ~ 0.50 |
Example value | 0.065 | 0.95 | 0.33 | 0.006 | 0.016 | 0.70 | 0.42 | 0.30 |
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 | 565 | 465 | 26 | 136 |
X-ray detection: I level
Reference current (DC + )
Electrode diameter (mm) | φ3.2 | φ4.0 | φ5.0 |
Welding current (A) | 90 ~ 120 | 140 ~ 180 | 170 ~ 210 |
Precautions:
1. Before welding electrode to be about 350 ℃ baking 1h, with baking with.
2. Welder should be removed before welding rust, oil, water and other impurities.
3. Welding with short arc operation.
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