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Semi-red brass alloy

Technical characteristics

Semi-red brass is brass alloy that contains 8−17% of zinc, and nit less than 78% of copper. This is a modern substitute of tomboy. Alloys that relate to semi-red brass: С84200, С84400, С84500, С84800. Due to modern technological possibilities, there are can be manufactured the most complex details out of semi-red brass.


Percentage composition according to EN12165

Cu Zn Pb Sn Ni Fe Sb S P Si Si Residual elements
Basis 7−10 6−8 ≤ 1 ≤ 0.4 ≤0.25 ≤0.08 ≤0.02 ≤0.005 ≤0.005 ≤0.005 ≤0.08

Miscibility of metal in liquid alloy is performed in two steps. The first step is kinetic. Valence bindings split in crystal lattice of liquid material. There are formed new bindings between atoms of liquid metal and other atoms that are contained in solution. This step is done in boundary layer of liquid metal. During second step, solute atoms diffuse into solution through boundary layer of liquid metal.


Application of semi-red brasses: decorative brass, valves, cages, parts of water pipelines, furniture fittings, decorative casting, fittings, radiator parts, battery terminals, bushings, castings of general purpose with average strength.


Parts made of semi-red brasses can be joined by brazing (with a help of braze solders). There is not recommended to use such types of welding: arc welding in atmosphere of protective gas, carbon electrode welding, oxy-acetylene welding.

Semi-red brass supplier

«Auremo» company proposes to buy semi-red brass on favorable terms. A wide range of high-quality goods is presented in stock. Semi-red brass price depends on order quantity and additional conditions of supply. Rod, wire, pipe made of semi-red brass are always in stock. You can buy them for affordable price from semi-red brass supplier. Our offices located in Moscow, St. Petersburg and cities of Central Europe provide availability of products and efficiency of delivery. We invite you to a partnership. If you buy semi-red brass, you will be given special discounts.

Buy at a bargain semi-red brass price

«Auremo» semi-red brass supplier specializes in a supply of non-iron metal-roll. All products are certificated. Quality is guaranteed by rigorous technology compliance of a manufacture. Our managers are always ready to answer any questions and to give a knowledgeable assistance. A large assortment will not leave you without a choice. Buy semi-red brasses by connecting the nearest office. Order a service «Call-back» and our manager will help you to choose products that will fit your individual requirements. Semi-red brass rod, wire, pipe, strip, sheet are always in stock. We have the most affordable semi-red brass price. We are waiting for your orders.