A307
Description:
A307 is a basic coating of Cr23Ni13 stainless steel electrode, the deposited metal has good crack resistance and oxidation resistance. Using DC reverse, can be full position welding.
use:
For welding the same type of stainless steel, dissimilar steel and high-chromium steel, high manganese steel.
Deposited metal chemical composition (%)
| C | Mn | Si | S | P | Cr | Ni | Mo | Cu |
guarantee value | ≤0.150 | 0.50 ~ 2.50 | ≤1.00 | ≤0.030 | ≤0.040 | 22.0 ~ 25.0 | 12.0 ~ 14.0 | ≤0.75 | ≤0.75 |
Example value | 0.057 | 1.30 | 0.22 | 0.007 | 0.022 | 23.43 | 12.82 | 0.12 | 0.12 |
Deposited metal mechanical properties
Pilot projects | Rm (N / mm 2 ) | A (%) |
guarantee value | ≥550 | ≥25 |
Example value | 600 | 38 |
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:
⒈ welding electrode to be about 250 ℃ baking 1h.
⒉ current operation should not be too large.
related articles
The number of clicks:Update time:2017/12/27 15:19:30【print this page】