A902
Description:
A902 is titanium calcium type stainless steel electrode, AC and DC. Has excellent corrosion resistance and strong antioxidant capacity. In chemical, petroleum and hydrogen production equipment, installation and installation of a wide range of applications, but also for dissimilar steel welding materials.
use:
For sulfuric acid, nitric acid, phosphoric acid and oxidizing acid corrosion medium Carpenter20Cb nickel alloy welding.
Deposited metal chemical composition (%)
| C | Mn | Si | S | P | Cr | Ni | Mo | Cu | Nb |
guarantee value | ≤0.07 | 0.50 ~ 2.50 | ≤0.60 | ≤0.030 | ≤0.040 | 19.0 ~ 21.0 | 32.0 ~ 36.0 | 2.0 ~ 3.0 | 3.0 ~ 4.0 | 8 × C ~ 1.00 |
Deposited metal mechanical properties
Pilot projects | Rm (N / mm 2 ) | A (%) |
guarantee value | ≥550 | ≥28 |
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:
⒈ welding electrode to be 300 ℃ baking 1h.
⒉ as much as possible the use of DC power supply, the current should not be too large.
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