High quality material: H63 brass alloy

H63 brass is composed of copper, zinc and other elements. It has excellent electrical and thermal conductivity, strength and hardness, good plasticity and ductility, impact toughness and fatigue strength. It is widely used in electrical, automotive, construction and other fields. Attention should be paid to corrosion resistance and preventive measures.Copper alloy series: copper plate, copper busbar, copper tube, copper rod, copper profile, copper coil, medium-thick copper alloy plate, extra-thick copper alloy plate

H63 brass, as a widely used alloy material, plays an irreplaceable role in many industrial fields and daily life with its unique chemical composition and excellent mechanical properties. This article will give a detailed introduction to the chemical composition and mechanical properties of H63 brass so that readers can better understand this material.

Chemical composition

H63 brass is mainly composed of two elements, copper (Cu) and zinc (Zn), of which the content of copper is between 62.0% and 65.0%, and zinc is the balance. In addition to these two main elements, H63 brass also contains a small amount of other elements, such as nickel (Ni), iron (Fe), lead (Pb), etc., as well as trace amounts of impurities such as phosphorus (P) and antimony (Sb). Specifically, the content of nickel is about 0.5%, the content of iron is about 0.15%, the content of lead is usually not more than 0.08%, and the total amount of impurities does not exceed 0.5%.

Copper, as the main component of H63 brass, gives it good electrical and thermal conductivity. This makes H63 brass widely used in electrical and electronic fields, such as wires, cables, connectors, etc. At the same time, the addition of copper also improves the corrosion resistance of brass, enabling it to maintain good performance in some corrosive environments.

The addition of zinc enhances the strength and hardness of H63 brass to a certain extent. Zinc is a relatively active metal that can form a solid solution with copper, thereby improving the mechanical properties of brass. In addition, the addition of zinc can also improve the processing properties of brass, making it easier to perform processing operations such as cutting and stamping.

In addition to copper and zinc, other elements in H63 brass also play an important role. The addition of nickel helps to improve the corrosion resistance of brass, allowing it to maintain good stability in some harsh environments. The presence of iron can further improve the strength and hardness of brass, and also help improve its processing properties. The addition of lead can lower the melting point of brass and improve its casting properties.

Mechanical properties

H63 brass not only has a unique chemical composition, but also exhibits excellent mechanical properties. Its tensile strength (σb/MPa) usually reaches or exceeds 370, and can even reach above 390 in some cases. This shows that H63 brass has strong load-bearing capacity and can withstand large external forces without causing damage.

In terms of elongation, H63 brass also shows good plasticity and ductility. Its elongation (δ10/%) is not less than 15, and its elongation (δ5/%) is not less than 18. This means that H63 brass can undergo large plastic deformation without fracture when subjected to external forces. This characteristic gives H63 brass significant advantages in manufacturing various deeply extended and bent stress-bearing parts, such as pins, rivets, washers, nuts and other fasteners.

In addition, H63 brass also has good impact toughness and fatigue strength. Impact toughness refers to the material's ability to absorb energy when subjected to impact loads, while fatigue strength refers to the material's ability to be subjected to alternating loads for a long time without causing damage. H63 brass has excellent performance in both aspects, which allows it to be used in some situations that need to withstand complex loads.

The mechanical properties of H63 brass are also reflected in its good processing properties. It is convenient for cutting and can be processed into parts of various specifications according to needs. This feature is a very important performance advantage in industrial fields such as machinery manufacturing, because it can reduce production costs and improve production efficiency.

At the same time, H63 brass also performs well in connection technology. Whether it is fiber welding or welding, it is relatively easy to achieve. This facilitates processing into various components or connecting with other parts to meet the needs of complex structures.

Application fields

With its unique chemical composition and excellent mechanical properties, H63 brass has been widely used in many fields. In the electrical and electronic fields, H63 brass is used to manufacture wires, cables, connectors and other parts. Due to its good conductivity and corrosion resistance, these parts can maintain stable performance during long-term use.

In the automotive industry, H63 brass is used to manufacture various fasteners and connectors. These parts need to withstand large external forces, and the strength and plasticity of H63 brass just meet this demand. At the same time, H63 brass also has good corrosion resistance and can maintain good stability during the use of the car.

In the construction field, H63 brass is used to manufacture various decorative materials and structural parts. Such as architectural decorative panels, radiator parts, etc. These parts need to have good appearance and stable performance, and H63 brass just has these characteristics.

In addition, H63 brass is also used to manufacture various piping systems and sanitary ware. These parts need to withstand greater pressure and erosion by corrosive substances, and the strength and corrosion resistance of H63 brass make it an ideal choice.

However, it is worth noting that H63 brass may also suffer from different forms of corrosion during use. Such as oxidative corrosion, electrochemical corrosion and microbial corrosion. Among them, electrochemical corrosion is more common. In H63 brass sewer pipes, copper is usually used as anode, and other metals or engineering materials are used as cathodes. The flow of electrons between the cathode and the anode will cause the oxidation reaction of copper and release metal ions, thereby aggravating corrosion. Therefore, when selecting H63 brass as a material, its corrosion resistance and the corrosiveness of the use environment need to be considered comprehensively.

In order to prevent corrosion, a variety of measures can be taken. For example, in terms of material selection, H63 brass with good quality and good corrosion resistance should be selected; in terms of surface treatment, coating and other methods can be used to enhance corrosion resistance; in terms of maintenance management, equipment should be regularly inspected and maintained to promptly detect and deal with corrosion problems; in terms of water source control, the presence of corrosive substances should be minimized.