A607
Description:
A607 is a pure alkaline austenitic Cr16Ni35 stainless steel electrode, due to welding rod coating by adding strengthening elements, it has good high temperature performance. Using DC reverse, can be full position welding.
use:
It is used for the welding of stainless steel of the same type working at high temperature of 850-900 ℃ and the welding of manifolds and expansion pipes (such as Cr20Ni32 and Cr18Ni37) in the hydrogen reforming furnace.
Deposited metal chemical composition (%)
| C | Mn | Si | S | P | Cr | Ni | Mo | Cu | W | Nb |
guarantee value | ≤0.20 | ≤3.50 | ≤0.70 | ≤0.030 | ≤0.035 | 15.0 ~ 17.0 | 33.0 ~ 37.0 | 2.0 ~ 3.0 | ≤0.75 | 2.0 ~ 3.0 | 1.0 ~ 2.0 |
Deposited metal mechanical properties
Pilot projects | Rm (N / mm 2 ) | A (%) |
guarantee value | ≥590 | ≥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 | 140 ~ 200 |
Precautions:
1. Before welding electrodes to be about 250 ℃ baking 1h.
2. Operating current should not be too large.
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