Rolled Bronze GOST
Rumors of my death are greatly exaggerated, Mark Twain once joked. In similar words, we can parry the claim that the "age of bronze" ended in ancient times. Modern bronze alloys have found their widest application in the twenty-first century.
General characteristics
The basis of bronze is considered to be copper and tin. But in addition to these elements copper may contain aluminum, beryllium, zirconium and other elements. According to chemical composition bronzes are divided into tin-free and tin-plated. Casting alloys and workable by pressure are distinguished separately. A distinctive feature of the bronzes is considered to be the corrosion resistance, excellent processing capability, durability and low price.
Classification
Tin bronzes contain more than 4% Sn and give the minimum shrinkage during the casting, which is extremely important for the production of quality castings. Aluminum bronze can include up to 8% Al, it is easily bent, stamped and cold-rolled. All bronzes are characterized by remarkable corrosion resistance, mechanical strength and cheapness. One of the cheapest is the silicon bronze. Beryllium bronze contains 2% Be and in addition to its strength, corrosion resistance and excellent workability is characterized by high elasticity, as well as by the fact that it does not spark when hitting another metal. The latter quality is especially important when working in explosive environments.
Advantages
The production of tin bronze was mastered by man at the dawn of its history. This alloy is distinguished by its corrosion resistance, low melting point, inexpensive production technology and excellent processability. It is quite ductile, biologically inert metal with good antifriction qualities. It can be easily stamped, drilled, bent, cut, has excellent casting properties. Most bronze metals (except aluminum) can be easily welded and brazed with special solders. After recycling the bronze can be recycled and reused. Numerous advantages make it quite popular today.
Production
Chemical composition of bronze alloys is regulated by
Marking
Bronze alloys are marked with the abbreviation Br, followed by capital letters of alloying elements and numbers of their percentage content. For example, BrOF 10-1 is a tin-phosphorus bronze containing 10% tin and 1% phosphorus. BrOTSS-5-5-5 (tin bronze, alloyed with zinc and lead),
Applications
Construction, engineering, transport, energy, water supply etc. Wrought alloys serve as the basis for liners, bushings, contacts - corrosion-resistant and durable. Rolled bronze is excellent in conditions of high pressure and temperature. Bronze produces bearings, shut-off valves, gears, nuts, gaskets, washers, bolts, bushings, shafts springs. Silicon bronze is good for springing. Beryllium bronze does not spark on impact, which is very important in explosive environments. "Admiralty bronze" - zinc-alloyed, particularly resistant to corrosion in salt water, used in shipbuilding for production of propellers and superstructures
Range
Bronze sleeve and insert. Refers to expendable parts. They are malleable, wear out quickly, but they protect more responsible parts of mechanisms. As a consumable material, bronze extends the life of equipment. The bushings are made of the following grades: BrAZh, BrO5Ts5C5, BrOCS 5-5-5, etc
Bronze band. It is produced from brands: BrA7; BrB2; BrBNT; BrB2m, BrB2T; BrOF; BrOF 7-0,2; BrOF 6,5-0,15; BrOC4-3; BrOCS, BrKMC; BrKMC 3-1.
The sheet is characterized by sufficient hardness and strength, resistance to moisture and chemicals, good electrical and thermal conductivity, is widely used in many industries. It is made of such grades as BrX1, BrX1Cr, МН2.5ККрХ.
Bronze wire. It is produced from the following grades: BrAMZ9-2; BrAJNMZ 8,5-4-5-1,5; BrB2,5; BrB2; BrNHK 2,5-0,7-0,6; BrOF6,5-0,4; BrOZ4-3; BrKMZ3-1BrHKrK; BrX0,7.
Therod is made from the following grades: BrAJHMc 9-4-4-1, BrAJHMc 10-3-1,5; BrAJMc9-2; BrB2; BrOC4-3; BrKMC3-1; BrKMC3-1A;
Bronze ingots are made of the following grades: BrAJ9-4L; BrAJ10-3; BrAJMc10-3-2; BrAJMc9-2; BrOOS8-12; BrOCS3-13-4; BrOCS5-5-5; BrOCS5-6-5.
Bronze grades and bronze alloys
| GOST | Alloy | Grade by DIN | Grade by EN | Composition, % | Designation |
|---|---|---|---|---|---|
| BrOF6,5-0,15 | CuSn6 | 2.1020 | CW452K | Sn - 6-7, P - 0,1-0,25, the rest Cu | Bearings, springs, strips, bars |
| BrOF4-0,25 | Sn - 3,5-4, P - 0,2-0,3, the rest Cu | Tubes for gauge springs | |||
| BrOtzS4-3 | Zn - 3,5-4, Sn - 2,7--3,3, the rest Cu | Wire for springs, strips, bands | |||
| BrOOCS4-4-2,5 | Zn - 3,5-5, Sn - 3-5, P - 1,5-3,5, rest Cu | Gaskets in bearings, wire | |||
| BrOC 4-4-17 | Zn - 3,5-5, Sn - 2-6, P - 14-20, rest Cu | Antifriction parts and fittings | |||
| BrOC 5-5-5 | CuSn5ZnPb | 2.1096 | CC491K | Zn - 4-6, Sn - 4-6, Pb - 4-6, rest Cu | Antifriction parts and fittings |
| BrOTSS3-12-5 | Sn - 2-3,5, Zn - 8-15, Pb - 3-6, ost. Cu | Fittings in sea and fresh water | |||
| BrOCSN3-7-5-1 | Sn - 2,5-4, Zn - 6-9,5, Pb - 3-6, Ni - 0,5-2, rest Cu | Fittings in sea and fresh water | |||
| BrAZh9-4 | Al 8-10, Fe 2-4, the rest Cu | Gears, sleeves, valve seats | |||
| БрАЖМц10-3-1,5 | Al - 9-11, Fe - 2,4, Mn 1-2, rest Cu | Gears, bushings, bearings | |||
| BrAZHN10-4-4 | CuAl10Ni | 2.0975 | CC333G | Al - 9,5-11, Fe - 3,5-5,5, Ni - 3,5-5,5, rest Cu | Gears, valve seats |
| BrAJN11-6-6 | CuAl11Ni | 2.0980 | CC334G | Al - 10,5-11,5, Fe - 5-6,5, Ni - 5-6,5, Cu | Shaped casting |
| BrAMC 9-2 | Al - 8-10, Mn - 1,5-2,5, the rest Cu | Marine parts, electrical equipment | |||
| BrAMC10-2 | Al - 9-11, Mn - 1,5-2,5, the rest Cu | Shaped casting | |||
| BrKMts3-1 | Mn - 1-1,5, Si - 2,75-3,5, the rest Cu | Forgings | |||
| БрБ2 | Be - 1,9-2,2, Ni - 0,2-0,5, rest Cu | Springing parts in aviation and instrument-making | |||
| BrCr | Cr - 0,4-1, Zn - 0,3, Cu | For heat exchangers, for carbon steel contact welding electrodes |
Supply
We supply certified bronze rolled steel of any grade. The price of the bronze depends on the volume of order and additional terms of delivery. The specification includes data on the percentage composition and mechanical properties of products. With us it is easy to buy in bulk any semi-finished products for large-scale production. We also cooperate with retail buyers. High level of service and responsiveness of service is the face of our company.
Buy at a bargain price
The website of Evek GmbH reflects the most up-to-date information on the purchase of non-ferrous alloys to date. Our best managers are ready to provide highly qualified consulting assistance on any current issues. We sell semi-finished products of rare and non-ferrous alloys at a competitive price. Products are manufactured on the most modern equipment and meet the requirements of international quality standards. Regular customers are offered a system of discount discounts.
