HPB62-2 lead brass is a high-quality copper alloy material, and its material name is HPB62-2. This standard is followed (GB T 5231-2001), which ensures its quality and reliability. In terms of chemical composition, HPB62-2 lead brass contains copper Cu with a content of 600-63.0, with excellent electrical and thermal conductivity.
The content of iron Fe is controlled at 015 to maintain the high strength and toughness of the material. The content of lead PB is 15-2.5. It helps to improve the plasticity and processability of the material. As the main alloying element, zinc ZN has a high content, which ensures the excellent mechanical properties of HPB62-2 lead brass.
The effects of chemical elements on steel properties are manifold. As the main element of steel, carbon C can significantly improve the yield point and tensile strength of steel, but also reduce plasticity and impact. When the carbon content exceeds 0At 23%, the weldability of the steel will deteriorate, so for low-alloy structural steel that needs to be welded, its carbon content generally does not exceed 020%。In addition, the increase in carbon content also reduces the steel's resistance to atmospheric corrosion.
Silicon Si is added as a reducing agent and deoxidizer in the steelmaking process, usually containing 015－0.30% silicon. Silicon is widely used in the manufacture of spring steels because it significantly increases the elastic limit, yield point, and tensile strength of steel. Add 10－1.2% of silicon, which can increase the strength by 15 to 20%. Silicon is combined with elements such as molybdenum, tungsten, chromium, etc., which can improve the corrosion and oxidation resistance of steel, resulting in the manufacture of heat-resistant steel. Mild steel contains 1 4% silicon, has an extremely high magnetic permeability, and is widely used in the manufacture of silicon steel sheets in the electrical industry. However, an increase in silicon content can reduce the weldability of the steel.