In the grade of copper, the M3 alloy occupies the penultimate line, since less than in it (99.5%), in fact, copper is contained only in M4 (99.0%). The proportion of oxygen is up to 0.08%. Copper is used to obtain alloys of ordinary quality.
Composition and characteristics
The composition of the M3 alloy in accordance with GOST 859-2001, no more than:
- iron - 0.05%;
- nickel - 0.2%;
- sulfur - 0.01%;
- arsenic - 0.01%;
- lead - 0.05%;
- antimony - 0.05%;
- bismuth - 0.003%;
- tin - 0.05%.
Alloy M3 at a temperature of 500°C has a yield strength of 2.2 kg/mm 2 . For comparison, rolled steel has a similar indicator 45.4 times higher (100 kg / mm 2). Alloy M3 is one and a half times harder than silver (HB 10-1 95MPa). In terms of thermal and electrical conductivity, it is also inferior only to the second metal in the Cu-Ag system.
The alloy has good anti-corrosion properties and wear resistance. Processing by pressure at a high heating temperature of the workpiece from M3 is difficult due to the high content of antimony and bismuth.
Production features and application
A variety of parts are made from the M3 alloy: heat exchangers and coils for boiler equipment, refrigerators, and devices for creating a technical vacuum. Some types of tools are made from the alloy. Despite its lower hardness than steel, copper, in contact with other metals, is completely fireproof, as it does not leave sparks.
M3 alloy analogues are produced at non-ferrous metallurgy enterprises of different countries:
Oxidized copper is widely used in the military industry. With an M3 content of 68%, an alloy is produced for the production of cartridge cases for shells and cartridges. Other areas of use of the alloy are electrical engineering, roofing in construction, and the production of cryogenic equipment.
Attach files
Copper M3 - hard, soft, pressed
The MPStar company sells bushings, round bars, strips, sheets, pipes and strips made of copper alloy M3 at the lowest prices in stock. All types of products are manufactured in accordance with the relevant state standards. If necessary, we sell in pieces / blanks. We also provide related services for metalworking, packaging, storage and delivery of goods to various regions of Russia.
We will provide you with a comfortable full cycle service. Flexible system of discounts. Shipment of paid goods within one day. We will deliver to the regions in 2-3 days. Our fleet of vehicles - free shipping to the terminal of the transport company.
Characteristics and chemical composition of the alloy
Copper alloy M3 is produced in accordance with GOST 859-2001. The composition of this material includes 99.5% copper, as well as other substances: iron (0.05%), arsenic (0.01%), nickel (0.2%), sulfur (0.01%), lead ( 0.05%), oxygen (0.08%), bismuth, tin and antimony (0.1% in total). It is a highly ductile material with good corrosion resistance. It is well handled and is part of production process for many other metals. At the same time, the M3 alloy is characterized by a low price tag.
The key alloying elements here are nickel, lead and tin. According to technical parameters, solid and soft copper. This alloy is used mainly in the automotive and aircraft industries, as well as in instrument making.
The KuPrum company offers wholesale and retail copper sheet M3, corresponding to GOST 859-2001. We sell copper sheets made by cold and hot rolling:
- cold-rolled copper sheets in the form of rolls;
- hot-rolled sheets up to 10 meters long.
We have affordable prices for sheet copper and comfortable service for each customer. If necessary, our specialists will arrange the delivery of the material to any Russian region.
Features of copper sheet M3
Sheet copper M3 made of copper alloy, which contains 99.5% technical copper and 0.5% impurities of nickel, iron, bismuth, sulfur, lead, tin, arsenic and oxygen. The impurities included in the alloy provide the M3 sheet with excellent alloying qualities, corrosion resistance and good ductility. In this regard, the material is perfectly processed, soldered and tinned.
Areas of use of copper sheet M3
The main feature of the M3 copper sheet is its low price, due to the fact that it is made as a result of fire refining or remelting of technical copper scrap. Therefore, sheet copper is widely used in the production of parts for aircraft and automobiles, in instrument making, in electrical engineering, in metallurgy and in design. In addition, it is in demand in the manufacture of semi-finished products necessary for the production of various kitchen products and utensils.
What associations does the word metal evoke in you? People with a narrow worldview will say that there is nothing special about this word, but for the majority it is associated primarily with reliability and, for some reason, with a hard blow) Now it’s even hard to imagine how humanity used to get by on such a hardy and almost indestructible substance . But since now all industries are closely connected with metal, namely products made from it, we need a company that will sell rolled metal at affordable prices. One of such useful and responsible companies is Metal rolling in St. Petersburg.
Made from copper grades M1, M1R, M2, M2R, M3, M3R according to GOST 495-92, chemical composition which corresponds to GOST 859.
Among the huge range of product varieties, you can choose the most suitable one for yourself (copper sheet, reinforcing strands, corners, etc.) for you and buy to be sure of its strength, because it is strength that determines 100% of the quality of any metal.
Specifications of Copper Sheet
Each metal alloy has its own individual characteristics that determine their application and service life. Having decided on the appointment, you feel free to choose the right one for yourself, taking into account all the features. For example, a copper sheet is very convenient to use, but titanium sheets are distinguished by good strength and require a good ability to use it.
copper sheet weight
Almost every product that leaves the factory has a standard weight for easy transportation and packaging. Just imagine what would happen if each metal was produced in an arbitrary size. It would make your life very difficult.
| Theoretical weight of copper sheets M1-M3, GOST 495-92, kg. |
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| Thickness | Teretichskaya weight of 1m sheet |
Thickness | Teretichskaya weight of 1m sheet |
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| sheet, mm | The size sheet, mm |
sheet, mm | The size sheet, mm |
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| 1000x1000 | 600x1500 | 1000x2000 | 1000x1000 | 600x1500 | 1000x2000 | ||
| 0.4 | 3,56 | 3,2 | 7,12 | 4,5 | 40,05 | 36,06 | 80,1 |
| 0.5 | 4,45 | 4,01 | 8,9 | 5 | 44.50 | 40.05 | 89.00 |
| 0.6 | 5,34 | 4,81 | 10,68 | 5,5 | 48,95 | 44,06 | 97,9 |
| 0,7 | 6,23 | 5,61 | 12,46 | 6 | 53,4 | 48,06 | 106,8 |
| 0,8 | 7,12 | 6,41 | 14,24 | 6,5 | 57,85 | 52.07 | 115,7 |
| 0,9 | 8,01 | 7,21 | 16,02 | 7 | 62,3 | 56,07 | 124,6 |
| 1 | 8,9 | 8,01 | 17,8 | 7,5 | 66,75 | 60,08 | 133,5 |
| 1,1 | 9,79 | 8,81 | 19,58 | 8 | 71,2 | 64,08 | 142,4 |
| 1,2 | 10,68 | 9,61 | 21,36 | 9 | 80,1 | 72,09 | 160,2 |
| 1,3 | 11,57 | 10,41 | 23,14 | 10 | 89 | 80,1 | 178 |
| 1,4 | 12,02 | 10,81 | 24,03 | 11 | 97,9 | 88,11 | 195,8 |
| 1,4 | 12,4 | 11,21 | 24,92 | 12 | 106,8 | 96,12 | 213,6 |
| 1,5 | 13,35 | 12,02 | 26,7 | 13 | 115 | 104,13 | 231,4 |
| 1,6 | 14,24 | 12,82 | 12,82 | 14 | 124,6 | 112,14 | 249,2 |
| 1,7 | 14,69 | 13,22 | 29,37 | 15 | 133,5 | 120,15 | 267 |
| 1,8 | 16,02 | 14,42 | 32,04 | 16 | 142,4 | 128,16 | 248,8 |
| 2 | 17,8 | 16,02 | 35,6 | 17 | 151,3 | 136,17 | 302,6 |
| 2,2 | 19,58 | 17,62 | 39,16 | 18 | 160,2 | 144,18 | 320,4 |
| 2,3 | 20,03 | 18,02 | 40,05 | 19 | 169,1 | 152,19 | 338,2 |
| 2,5 | 22,25 | 20,03 | 44,5 | 20 | 178 | 160,2 | 356 |
| 2,8 | 24,48 | 22,03 | 48,95 | 21 | 186,9 | 168,21 | 373,8 |
| 30 | 26,7 | 24,03 | 53,4 | 22 | 195,8 | 176,22 | 391,6 |
| 3,5 | 31,15 | 28,04 | 62,3 | 24 | 213,6 | 193,24 | 427,2 |
| 4 | 35,6 | 32,04 | 71,2 | 25 | 222,5 | 200,25 | 445 |
copper sheet dimensions
Dimensions must also comply with the standard established by certain authorities. Under the order, you can get such goods as a copper sheet with a certain size, specified when ordering.
Hot-rolled sheets are produced: from 600 to 3000 mm wide; length from 1000 to 6000mm.
GOST 495-92
All products of the steel industry are manufactured in accordance with the laws and standards established by the state and comply with all the necessary technologies for the production of high-quality metal.
Steel grade.
The basis for determining the grade of steel is the chemical composition. Each metal has its own unique brand. And even a hard copper sheet and a soft copper sheet contain differences.
Order copper sheet and you can consult on metal rolling by calling the numbers listed at the top and bottom of the site, call!
Copper is one of the most common non-ferrous metals. It has high anti-corrosion properties both under normal atmospheric conditions and in fresh and sea water and other aggressive environments. However, copper is not stable in ammonia and sour gases.
Copper is easy to process by pressure and soldering. Possessing low casting properties, copper is difficult to cut and poorly welded. In practice, copper is used in the form of bars, sheets, wire, busbars and pipes.
Oxygen-free M0 (0.001% O 2) and deoxidized M1 (0.01% O 2) copper is widely used in electronics, vacuum technology, and in the electrical industry.
Copper comes in different grades: M00, M0, M1, M2 and M3. Copper grades are determined by the purity of its content.
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Copper grade | ||||||||||
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Percentage of copper |
Copper grades M1r, M2r and M3r contain 0.01% oxygen and 0.04% phosphorus. In the composition of copper grades M1, M2 and M3, the percentage of oxygen is 0.05-0.08%.
Mark M0b is characterized by the complete absence of oxygen. The percentage of oxygen in grade MO is up to 0.02%.
How do impurities affect the properties of copper
Depending on how impurities interact with copper, they are divided into three groups:
· Impurities that form solid solutions with copper - nickel, antimony, aluminum, zinc, iron, tin, etc. These impurities have a significant effect on the electrical and thermal conductivity of copper, reducing them. In view of this, copper M0 and M1 are used as current conductors, which include no more than 0.002 As and 0.002 Sb. Hot working pressure is difficult if it contains antimony.
· Impurities that practically do not dissolve in copper - bismuth, lead, etc. They practically do not affect the electrical conductivity of copper, but make it difficult to process it with pressure.
· Brittle chemical compounds formed in the impurity of copper with sulfur and oxygen. Oxygen, which is part of copper, significantly reduces its strength and reduces electrical conductivity. Sulfur improves the machinability of copper by cutting.
BRONZE
Bronze is an alloy of copper with aluminum, silicon, tin, beryllium and other elements except zinc. Bronzes are aluminum, silicon, tin, beryllium, etc. – depending on the alloying element.
Bronze marking is a certain sequence, starting with the letter combination "Br", after which the alloying elements are indicated. Alloying elements are listed starting with the element with the highest percentage relative to the others.
All bronzes are divided into tin and tinless
Tin bronzes
Tin bronzes are used in chemical industry and as anti-friction materials due to high anti-corrosion and anti-friction properties.
Alloying elements of tin bronzes are phosphorus, zinc, nickel. Zinc, which is part of tin bronzes in an amount of up to 10%, serves to reduce the cost of bronzes. Phosphorus and lead increase the antifriction properties of bronze and improve their machinability.
Cast tin bronzes are used:
· Deformed bronzes - BrOF6.5-0.4; BrOC4-3; BrOTsS4-4-2.5 - used as springs, anti-friction parts, membranes
· Casting bronzes - BrO3Ts12S5, BrO3Ts12S5, BrO4Ts4S17 - are used in antifriction parts, general purpose fittings
Tinless bronzes- these are double or multicomponent bronzes without tin, which include such elements as manganese, aluminum, lead, iron, nickel, silicon, beryllium.
Aluminum bronzes have high technological and mechanical properties, corrosion resistance in tropical climates and in sea water. For deep stamping, single-phase bronzes are used in practice, two-phase bronzes are used in the form of shaped castings and are subjected to hot deformation. 
Aluminum bronzes, having lower casting properties compared to tin bronzes, contribute to a higher density of castings.
Silicon bronzes. Silicon, which is part of bronze (up to 3.5%), increases its plasticity and strength. In combination with manganese and nickel, the corrosion and mechanical properties of silicon bronzes increase. They are widely used in aggressive environments, for the manufacture of spring parts that must operate at temperatures up to 2500 ° C.
beryllium bronze have high strength due to heat treatment. They are characterized by high characteristics of elasticity, yield strength and tensile strength, resistant to corrosion. Applied in electronic engineering, for spring contacts, membranes, wear parts.
Lead bronzes are alloys consisting of the inclusion of lead, which is practically insoluble in copper, and copper crystals. The high antifriction properties of lead bronzes make it possible to use them for the manufacture of parts that operate at high speeds and high pressures (sliding bearing shells). Due to the high thermal conductivity, lead bronze BrS30 contributes to the removal of heat that occurs during friction.
Bronzes alloyed with tin and nickel are characterized by increased corrosion and mechanical properties.
Tinless bronzes are used:
Aluminum bronzes - BrAZh9-4, BrAZhN10-4-4, BrA9Zh3L, BrA10Zh3Mts2 - are used for pressure treatment, as parts of chemical equipment, fittings and anti-friction parts
· Silicon bronzes - BrKMts3-1 - are applied as a wire to springs, tapes, fittings
Beryllium bronze - BrB2 - used as rods, wires for springs, tapes, strips
· Lead bronze - BrS30 - is applied in antifrictional details
BRASS
An alloy of copper and zinc, the percentage of zinc in which ranges from 5 to 45%, is called brass. Brass, which includes 2-20% zinc, is called tompak or red brass. If the zinc content is 20-36%, then such brass is called yellow. Brass, with more than 45% zinc in its composition, is used extremely rarely.
Brass classification:
Simple (two-component) - alloys that consist of zinc and copper with minor impurities of other elements;
· Special (multi-component) brass in its composition, in addition to copper and zinc, include a number of other alloying elements.
Plain brass
Two-component brasses are indicated by the capital letter "L", followed by a two-digit figure that determines the average percentage of copper in the alloy (L80-brass, which includes 80% copper and 20% zinc).
The classification of simple brasses is shown in the table:
Plain brasses are easy to work with pressure. Usually, they are supplied in the form of pipes and tubes, differing in sectional shape, in the form of tapes, strips, wires, sheets. Brass products with high internal stress are prone to cracking, which can be avoided by annealing at low temperatures (200-300°C) before long-term storage.
Special brass
Multi-component brasses are presented in a larger variety than simple ones.
The marking of special brasses begins with the capital letter "L", after which the sequence of alloying elements of the alloy (with the exception of zinc) and their percentage are indicated, starting with the element predominant in the alloy. The amount of zinc is determined according to the difference from 100%.
Brass alloying elements, among which the main ones are silicon, manganese, lead aluminum, iron and nickel, have a significant impact on the properties of brass:
· Tin increases the strength and corrosion resistance of brass in sea water;
· Manganese (especially combined with tin, iron and aluminum), as well as nickel, increase the resistance of the alloy to corrosion and its strength;
Lead, which is part of the alloy, degrades its mechanical properties, while providing ease of cutting, so brass, which require further processing using automatic machines, have lead as the main alloying element;
Special brass applied:
Deformable brass LAZH60-1-1 is used as bars, pipes, LZhMts59-1-1 and LS59-1 as pipes, bars, strips, wire
· Casting brass LTs40Mts3Zh are used in parts that are complex in their configuration, propellers and blades, etc.; LTS30A3 - parts resistant to corrosion; LTs40S have found application in fittings, separators of linear bushings, etc.