Mechanical advantages of bronzes

Tin bronzes contain on average from 4 to 6% of tin and have high mechanical, anticorrosive and antifriction properties, are well machined by cutting and easily molded. Lead is added to tin bronzes to enhance their workability and anti-friction properties. The addition of zinc, improves foundry properties and phosphorus, increases mechanical, anti-friction and casting properties.

Tin foundry and wrought bronzes

Tin foundry bronzes contain up to 15% of tin, 3 to 6% of lead, 4 to 10% of zinc and 0.4 to 1% of phosphorus. Foundry bronzes (GOST 614-73) are used for making various shaped castings. Shortage and high cost of tin is the main disadvantage of tin bronzes. Wrought bronzes (GOST 5017-74) are used in production of bushings for instruments, bearing inserts , etc. They are supplied as semi-finished items (wires, rods, strips, bands) in hard (annealed) and soft (annealed) condition.

Aluminum bronze

Brineless bronzes contain iron, aluminum, manganese, silicon, beryllium, lead, as well as various combinations of related elements. Aluminum bronzes contain from 4 to 11% aluminum, have high corrosion resistance, good mechanical and technological properties. They are easily machinable in hot state by pressure, and with aluminum content up to 8% they are easily machinable in cold state. Aluminum bronzes, which contain from 9% to 11% aluminum, as well as nickel, iron and manganese, are hardened by heat treatment (tempering and hardening).

Manganese bronze

BrMTs5 grade has relatively low mechanical properties but has good corrosion resistance and high ductility, as well as the ability to retain its strength properties at elevated temperatures.

Lead Bronze

BrS3O grade has high corrosion resistance and thermal conductivity (4 times higher than tin alloys). This bronze is used for production of heavily loaded bearings with high specific pressure.

Beryllium and silicon bronze

BrB2 grade (containing beryllium) exhibits high mechanical properties after heat treatment. It is used for production of the most critical special-purpose items. Its disadvantage is difficult soldering - it is necessary to use expensive silver solder with flux. Silicon bronze (BrKMZ-1, BrKN1-3) is used as a substitute for expensive beryllium bronze.

Buy, price

Evek GmbH stocks a wide range of bronze products of different grades, both foundry and wrought alloys. We value our customers time, so we are always ready to help with the best choice. At your service experienced managers-consultants. Product quality is guaranteed by strict adherence to production standards. The terms of fulfilling orders are minimal. Wholesale customers receive preferential discounts.