A237
Description:
A237 is a basic coating of Cr18Ni12Mo2V stainless steel electrode, because the deposited metal contains V, so it has good heat resistance and crack resistance. DC reverse connection can be used for all-position welding.
use:
Used for multi-layer welding of 06Cr19Ni10 and 06Cr17Ni12Mo2 stainless steel structures that require general heat resistance and a certain degree of corrosion resistance.
Deposited metal chemical composition (%)
| C | Mn | Si | S | P | Cr | Ni | Mo | Cu | V |
guarantee value | ≤0.080 | 0.50 ~ 2.50 | ≤1.00 | ≤0.030 | ≤0.035 | 17.0 ~ 20.0 | 11.0 ~ 14.0 | 2.0 ~ 2.5 | ≤0.75 | 0.30 ~ 0.70 |
Example value | 0.050 | 1.95 | 0.28 | 0.009 | 0.021 | 18.96 | 11.85 | 2.35 | 0.10 | 0.48 |
Deposited metal mechanical properties
Pilot projects | Rm (N / mm 2 ) | A (%) |
guarantee value | ≥540 | ≥25 |
Example value | 600 | 41 |
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 | 140 ~ 200 |
Precautions:
1. Before welding electrodes to be about 250 ℃ baking 1h.
2. Before welding to remove weld rust, oil, water and other impurities.
related articles
The number of clicks:Update time:2017/12/27 14:53:13【print this page】