A207
Description:
A207 is a basic coating of Cr18Ni12Mo2 stainless steel electrode. As the deposited metal contains Mo, it has good corrosion resistance, heat resistance and crack resistance, especially against chloride ion pitting benefits. Using DC reverse, can be full position welding.
use:
For low-carbon 06Cr17Ni12Mo2 stainless steel equipment, welding can also be welded without heat treatment of high-chromium steel (such as Cr13, Cr17), and for dissimilar steel welding.
Deposited metal chemical composition (%)
| C | Mn | Si | S | P | Cr | Ni | Mo | Cu |
guarantee value | ≤0.080 | 0.50 ~ 2.50 | ≤1.00 | ≤0.030 | ≤0.040 | 17.0 ~ 20.0 | 11.0 ~ 14.0 | 2.0 ~ 3.0 | ≤0.75 |
Deposited metal mechanical properties
Pilot projects | Rm (N / mm 2 ) | A (%) |
guarantee value | ≥520 | ≥25 |
Reference current (DC + )
Electrode diameter (mm) | φ2.0 | φ2.5 | φ3.2 | φ4.0 | φ5.0 |
Welding current (A) | 40 ~ 80 | 50 ~ 100 | 70 ~ 120 | 90 ~ 160 | 160 ~ 200 |
Precautions:
1. Before welding electrodes to be about 250 ℃ baking 1h.
2. Before welding to be removed rust, oil, water and other impurities.
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