Brass is an alloy composed of copper and zinc. Brass composed of copper and zinc is called ordinary brass. If it is a variety of alloys composed of more than two elements, it is called special brass. Brass has strong wear resistance. Brass is often used to make valves, water pipes, connecting pipes for internal and external air conditioners, and radiators.

Pressure processing performance:
α single-phase brass (from H96 to H65) has good plasticity and can withstand hot and cold processing, but α single-phase brass is prone to medium temperature brittleness during hot working such as forging, and its specific temperature range varies with the Zn content. The change is generally between 200~700ºC. Therefore, the temperature during thermal processing should be higher than 700°C. The reason for the formation of the medium-temperature brittle zone in single-phase α brass is mainly due to the existence of two ordered compounds of Cu3Zn and Cu9Zn in the α-phase zone of the Cu-Zn alloy system. The orderly transformation occurs when heated at medium and low temperatures, which makes the alloy brittle; , There are trace amounts of lead and bismuth harmful impurities in the alloy and copper form a low-melting eutectic film distributed on the grain boundary, which will cause intergranular fracture during thermal processing. Practice has shown that adding a small amount of cerium can effectively eliminate medium temperature brittleness.
In two-phase brass (from H63 to H59), in addition to the α phase with good plasticity, β solid solution based on the electronic compound CuZn also appears in the alloy structure. The β phase has high plasticity at high temperature, while the β'phase (ordered solid solution) at low temperature is hard and brittle. Therefore (α+β) brass should be forged in hot state. Beta brass with a zinc content of more than 46%-50% cannot be press-processed due to its hard and brittle properties.

use:
High purity, fine organization, extremely low oxygen content. No pores, trachoma, looseness, excellent conductivity, high precision of the surface of the electro-eroded mold, after the heat treatment process, the electrode has no directionality, suitable for fine punching, fine punching, and has good thermal conductivity, processability, ductility, Corrosion resistance and weather resistance, etc. It has good electrical conductivity, thermal conductivity, corrosion resistance and processing properties, and can be welded and brazed.

Due to the different zinc content in brass, the mechanical properties are also different.
The mechanical properties of copper vary with the zinc content. For alpha brass, as the zinc content increases, both σb and δ continue to increase. For (α+β) brass, the room temperature strength continues to increase before the zinc content increases to about 45%. If the zinc content is further increased, the more brittle r-phase (solid solution based on Cu5Zn8 compound) appears in the alloy structure, and the strength decreases sharply. The room temperature plasticity of (α+β) brass always decreases with the increase of zinc content. Therefore, a copper-zinc alloy with a zinc content of more than 45% has no practical value.
Ordinary brass has a wide range of uses, such as water tank belts, water supply and drainage pipes, medals, bellows, serpentine tubes, condenser tubes, bullet casings and various complex shaped punching products, small hardware parts, etc. As the zinc content increases from H63 to H59, they can withstand hot processing well, and are mostly used in various parts of machinery and electrical appliances, stamping parts and musical instruments.
In order to improve the corrosion resistance, strength, hardness and machinability of brass, a small amount (generally 1%~2%, a few up to 3%~4%, and very few up to 5%~6) are added to the copper-zinc alloy. %) Tin, aluminum, manganese, iron, silicon, nickel, lead and other elements form ternary, quaternary, and even five-element alloys, which are complex brass, also known as special brass.

Q: What type of work does your company do?
Answer: Our company is a professional manufacturer, mainly producing stainless steel plates, stainless steel coils, stainless steel pipes, stainless steel bars, galvanized products and aluminized products.
Q: How do you guarantee your quality?
1. We can provide you with quality certificates accordingly.
2. We are willing to accept third-party inspections, such as SGS, BV, CE, etc.
Q: Can you accept customization?
Yes. If you have special requirements for products or packaging, we can customize it for you.
Q: Can you accept tracking orders?
Usually our MOQ is 5 tons. But if you want to place an order first as the beginning of our cooperation, we can accept a smaller quantity first. Of course, we will have a deeper and longer partnership after we start.
Q: Can you provide samples for inspection before ordering?
Answer: Free samples can be provided according to your requirements. You only need to bear the freight.

Shandong Xinchengyuan Import and Export Co., Ltd is a professional steel company engaged in the research, development, production, sale and service. It had five branch companies .Our annual sales nearly one billion, about 280,000 tons steel, It is located in Jinan with the convenient transportation access. In line with the development concept of quality conquer the world, service achievement future. We dedicate to strict quality control and thoughtful customer service, and our experienced staff members are always available to discuss your requirements and ensure every customer satisfaction. Our main products include PPGI ,galvanized steel , steel plate , round bar, steel pipe ,Stainless steel product ,angle bar, steel pile ,H beam ,I beam, angle, Channel flat steel etc . With double guarantee of service and management system. Main market distributes in North America, South America, Africa, Southeast Asia as well as Oceania. Xinchengyuan responds positively to the national one belt and one road strategy, and arranged overseas layout in advance to service the countries and customers alongside the route better and higher efficiency. Up to now, we have established long-term and win-win partnership with many large steel manufacturers, such as Baosteel, Laiwu Steel, Rizhao Steel, Handan Iron and Steel, Angang and Maanshan Iron and Steel. We always foucesed on the intergration of reasources , in line with the concept of win win cooperation . Sincerely wish to build a long and regular business with you forever.
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