A chromium stainless steel with corrosion (oxidation acid, organic acids, cavitation), heat and abrasion resistance. Typically used in power plants, chemical, oil and other equipment and materials. Chromium stainless steel welding poor, should pay attention to the welding process, heat treatment conditions and selection of suitable welding.2, chrome 13 stainless steel welding, hardening of large, prone to crack. The use of the same type of chromium stainless steel electrode (G202, G207) Welding Wire, preheat and post weld more than 300 â„ƒ, 700 â„ƒ about slow cooling processing. Weldment can not weld heat treatment, you should make use of chrome-nickel stainless steel electrode (A107, A207).3 17 stainless steel, chrome, to improve corrosion resistance and weldability appropriate increase in the amount of stability elements of Ti, Nb, Mo, welding better than the chrome 13 stainless steel. Using the same type of chromium stainless steel electrode (G302, G307) should be carried out more than 200 â„ƒ preheat and post weld tempering around 800 â„ƒ. Weldment can not be heat treated, you should make use of chrome-nickel stainless steel electrode (A107, A207).4, chrome-nickel stainless steel electrode has good corrosion resistance and oxidation resistance, widely used in chemical, fertilizer, petroleum, medical machinery manufacturing.5, chrome-nickel stainless steel welded carbide precipitation by repeated heating and reduce the corrosion resistance and mechanical properties.6, drug skin of chrome-nickel stainless steel with titanium calcium type and low-hydrogen type. Titanium calcium type can be used for AC-DC, AC welding penetration is shallow, and easy to redness, so as far as possible with DC power supply. Diameter of 4.0 and below can be used for all position welding of 5.0 and above for flat butt and fillet weld.7, the electrode should be used to keep dry, lime-titania type shall be approved by the dry one hour of 150 ° C, low hydrogen type should be dried by 200-250 ° C 1 hour (can not be repeated drying, otherwise the drug leather easy to crack and peel off) to prevent the electrode drug skin sticky oil and other dirt, so as to avoid causing the weld to increase the carbon content and impact of welding quality.8, in order to prevent corrosion between the eyes, the Welding Electrode current is not too large, about 20 percent less than the carbon steel electrode, the arc should not be too long, rapid cooling between layers, in order to narrow weld heating is appropriate.
The Carbon Steel Electrode (deposited metal tensile strength less than or equal to 500MPa namely 50kgf/mm2) applicable to carbon steel and low-strength low alloy steel welding. Low hydrogen, iron powder type electrode before welding electrodes must be baked at 350 ° C above, as far as possible to do with the drying with the use of the principle of how much baking how much, otherwise it will produce welding defects (such as porosity, slag, cracks, deterioration of process performance, etc.). Cellulose type electrode should be strictly in accordance with the provisions of the Manual baking temperature baking, the temperature is too high will burn the cellulose to the drug skin, damage inherent in the electrode process performance. Using low hydrogen electrodes, the welder should be living in the upwind position,Carbon Steel Welding Electrodes to enhance ventilation, to prevent the hazards of welding fumes on the body. Low hydrogen type electrode baking the number of times as much as possible not more than twice to prevent drug skin to become brittle and fall off. J350 is a low carbon pure iron materials for welding low carbon core pure iron electrode. DCRP welding, fillet welding process performance, the electrode arc blowing force is small, shallow penetration, easy slag, weld appearance, the deposited metal has good crack resistance. Usage: welding of low carbon pure iron ammonia synthesis tower. Resistance to high temperature hydrogen, nitrogen, ammonia, corrosion, and also do the requirements of the crack without welding or transition layer of the strength requirements.Carbon Steel Welding Electrode J421 is a titania type coating carbon steel welding rods. AC and DC, all-position welding. Excellent welding performance and good operational performance, then arc, arc stability, weld appearance. Usage: welding low carbon steel, particularly suitable for the small pieces of sheet metal and requirements of the weld surface appearance and smooth capping. J421Fe is iron powder titania type coating carbon steel welding rods. AC and DC, all-position welding. Excellent welding performance, splash very little, easily re-arc, easy slag detachability; weld appearance, high efficiency. Usage: welding general low-carbon steel, especially for intermittent welding and requirements of the welds smooth surface in the sheet metal in small pieces and short weld capping.