What Are the Different Uses of Brass?

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 two or more elements, it is called special brass. Brass has strong abrasion resistance. Brass is often used in the manufacture of valves, water pipes, connecting pipes for air conditioners and radiators, and radiators.

So far, the earliest copper products found in the world are mainly in West Asia, such as the Jawi Chermi region of Iraq, where copper ornaments were found, dating from about 10,000 BC to 9,000 BC; Ali in western Iran Copper ornaments have also been found in the Kashgar region, dating from 9,000 to 7000 BC; copper needles and copper cones have been unearthed at the site of Cayoni in southern Turkey, dating to about 8000 BC. These copper products are made of natural red copper, not copper obtained by smelting ore.

From the use of pure copper, to the smelting of copper ore to obtain pure copper, to the smelting of bronze alloys, humans have experienced a long period of exploration, just like the magical world, which uses copper to create a glittering space-time. tunnel.

The earliest smelted copper in the world was found in Shaanxi, China. In 1973, a semicircular brass plate and a brass tube were found at the Jiangzhai Cultural Site in Lintong, Shaanxi, dating back to around 4700 BC. It is worth pointing out that recently, in Shanghai light source, using X-ray fluorescence surface scanning analysis, it was found that the zinc content in different areas of the Jiangzhai brass plate was significantly different, and the lead element was distributed in a sporadic pattern. Copper is exactly the same, which proves that the ancient people used hot calcination or solid reduction to smelt metals between the use of natural metals and foundry metals. ^[1]

The hot working temperature is 750 830 ; the annealing temperature is 520 650 ; the low temperature annealing temperature for eliminating internal stress is 260 270 .

Environmentally friendly brass C26000 C2600 Excellent plasticity, high strength, good machinability, welding, good corrosion resistance, heat exchangers, papermaking tubes, machinery, electronic parts.

Specification (mm): Specification: thickness: 0.01-2.0mm, width: 2-600mm;

Hardness: O, 1 / 2H, 3 / 4H, H, EH, SH, etc .;

Applicable standards: GB, JISH, DIN, ASTM, EN;

Features: Excellent cutting performance is suitable for high-precision parts processed by automatic lathes and CNC lathes. ^[2]

According to China's "Method for Representing Brands of Nonferrous Metals and Alloy Products", brass is represented by the code (Chinese Pinyin) "H". Ordinary brass is expressed by "H" plus the content of basic element copper, such as: 68 copper is expressed as H68, 65 copper is expressed as H65, H62.