A502
Description:
A502 is titanium calcium type pure austenitic Cr16Ni25Mo6 stainless steel electrode, AC and DC.
use:
For welding quenched low alloy and medium alloy steel, dissimilar steel and more rigid structure and the corresponding hot-tempered steel. Such as quenched state 30CrMnSi and stainless steel, carbon steel and dissimilar steel welding.
Deposited metal chemical composition (%)
| C | Mn | Si | S | P | Cr | Ni | Mo | Cu | N |
guarantee value | ≤0.12 | 0.50 ~ 2.50 | ≤0.90 | ≤0.030 | ≤0.035 | 14.0 ~ 18.0 | 22.0 ~ 27.0 | 5.0 ~ 7.0 | ≤0.50 | ≥0.10 |
Example value | 0.050 | 1.15 | 0.50 | 0.008 | 0.021 | 16.26 | 24.60 | 5.86 | 0.10 | 0.14 |
Deposited metal mechanical properties
Pilot projects | Rm (N / mm 2 ) | A (%) |
guarantee value | ≥610 | ≥30 |
Example value | 650 | 40 |
Reference current (AC, DC + )
Electrode diameter (mm) | φ2.0 | φ2.5 | φ3.2 | φ4.0 | φ5.0 |
Welding current (A) | 40 ~ 80 | 50 ~ 100 | 70 ~ 130 | 100 ~ 160 | 140 ~ 200 |
Precautions:
1. Before welding electrode to be baked at 300 ℃ 1h.
2. As far as possible the use of DC power supply, the current should not be too large.
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