| Customization: | Available |
|---|---|
| state: | Solid |
| pH: | Alkaline |
|
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HJ251
comply with standards ( Standards)
GB/T12470 F48A0-H10Mn2
illustrate:HJ251 it is a smelting low manganese, medium silicon and medium fluorine flux, which is light yellow to light green pumice-like particles with a particle size of 10-60 mesh. using dc power supply, the welding wire is connected to the positive electrode, and the welding process performance is good.
use:use chromium-molybdenum steel welding wire to weld pearlitic heat-resistant steel. such as welding steam turbine rotors. it can also be used to weld other low alloy steels.
flux chemical composition reference values (%):
| SiO2+Al2O3 | CaF2+CaO+MgO | S | P |
| 36-45 | 40-53 | ≤0.05 | ≤0.08 |
| pilot project | or s (Mpa) | or b (Mpa) | δ5( %) | Akv(J), 0ºC |
| guaranteed value | ≥380 | 480-660 | ≥22 | ≥27 |
| actual value | 414 | 530 | 30 | 115 |
Precautions:
1.the flux must be soaked for 300-350 seconds before use. ºCbake for about 2 hours.
2.before welding, the rust, oil, moisture and other impurities on the welding parts should be removed.
To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.
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