Welding Rods 12.7mm

          The Welding Rod is coated on the metal welding core. The welding core is the metal core of the electrode. In order to ensure the quality and performance of the weld, there are strict regulations on the content of each metal element in the welding core, especially on the content of harmful impurities (such as sulfur, phosphorus, etc.), there should be strict restrictions, better than the base material. The welding rod is composed of welding core and medicine skin. Different types of Welding Rod, the welding core is also different. The composition of welding core directly affects the composition and performance of welding metal, so the harmful elements in welding core should be as little as possible.

       The electrode is the melting electrode used in the arc welding of the welding electrode coated with the medicine skin, which is composed of two parts: the electrode skin and the welding core. At the front of the electrode, the skin has about 45 chamfer, which is to facilitate arc induction. There is a bare welding core in the tail, accounting for about 1 / 16 of the total length of the electrode, which is easy to hold the welding pliers and conducive to electrical conduction. The diameter of the electrode actually refers to the diameter of the core) is usually 2,2.5,3.2 or 3,4,5 or 6mm and other specifications, the most commonly used is small 3.2, small 4, small 5 three, its length "L" is generally between 200 and 550 mm.

          The welding core of carbon steel and low alloy steel is generally selected with low carbon steel as the welding core, and manganese, silicon, chromium, nickel and other components are added (see the national standard of welding wire G1300-77 for details). On the one hand, the reason for using low carbon is that the steel wire is plastic, and the welding wire is easy. On the other hand, it can reduce the CO content of reduced gas, reduce splash or pores, and increase the temperature of the weld metal solidification, which is beneficial to backward welding. Adding other alloy elements is mainly to ensure the comprehensive mechanical properties of the weld, and also has a certain effect on the welding process performance and the removal of impurities. High alloy steel and aluminum, copper, cast iron and other metal materials, the welding core components in addition to the requirements and the welded metal is similar, but also to control the content of impurities, and according to the process requirements often add some specific alloy elements.

     Our company cooperates with major steel mills and has advanced production lines for sheet and pipe materials, complete testing equipment, and a strict quality assurance system.

        We specializes in various kinds of steel concerned building materials. Such as Galvanized round pipe, square/rectangular/Irregular pipe, Scaffold pipe, various steel coils/stripe/plate, PC wire, PC strands, rebar, photovoltaic bracket, Angle steel, U/H/C-shaped steel and so on.
        Especially our patented products-Rare Earth Weather & Corrosion Resistant Steel, it is a green, environmentally friendly, and corrosion-resistant new type of steel that can replace traditional galvanizing and rust prevention processes.

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