Ahan Pouya - Sale and export of ironware

types of metallic materials :

Iron is used in construction in the form of steel and cast iron .  The iron from which cast iron and steel are obtained is prepared in the form of crude iron by heat and melting in special furnaces. iron in nature is not pure. And is found as oxides or carbonates or iron sulfides in other materials on Earth. 

types of iron catalysts in terms of carbon content : 

1.Raw iron : 

Raw iron is not suitable for mechanical work, even when hot And not weldable this is why raw iron is not used in the industry And it is used only for making steel and cast iron.  It is available in three types: gray, white crude iron and semi-gray crude iron. The carbon content in it is 3 - 25 % . in addition to carbon , silicon , manganese , sulfur and phosphorus. Raw iron does not have good properties in terms of mechanical applications such as hammering, rolling and pressing. 

2.Cast iron :

cast iron is prepared from remelting and refining of raw iron . Cast iron has about 3 to 4 percent carbon And brittle . It rusts less than steel . The compressive strength of cast iron is better than its tensile strength. Today, cast iron is used in the construction of sewer pipes, central heating boilers, radiators for use in humid places such as bathrooms and the construction of valves and water heaters. while in the past it is used in construction and construction of compression columns . 

3.Steel : 

The highest amount of crude iron obtained from a blast furnace Used to make steel. the way to prepare is which melted the raw iron And remove foreign matter such as carbon, sulfur, phosphorus, silicon and magnesium And add a certain amount of carbon to it. The most important methods used to make steel today are Basma Thomas, Siemens Martin or open furnaces and electric furnaces. Today, the steel used in construction is prepared by open kilns due to its better quality. 

Types of building steels : 

1.Carbon Steel : The properties of this type of steel are due to the presence of carbon And besides manganese , there is no other alloy .

2.alloy steel : With respect to the alloy of alloying with this type of steel , it is used in certain cases .

3.Low alloy and high strength steel : This type of steel contains certain chemicals And it has better corrosion resistance than ordinary steel. 

4.Heat and rust resistant steel : is very resistant to heat and corrosion And by adding nickel and cream to it , carbon steel is obtained. 

5.instrumental steel : It is the same as carbon or alloy steel . Used as a tool for cutting and molding and has the ability to be hard and go back .

Introduction of aluminum building materials : 

aluminum is the most consumed industrial metal after iron . aluminum is produced from its mine , the aluminum bauxite , and is produced by electrolysis . This metal had a high electrical conductivity And it is a good thermal conductor and reflects heat and light well. Aluminum is easier to make, cut and shape than steel And is more resistant to corrosion and because of the weight of using it instead of steel , it reduces the weight of the building blocks . This available metal has a high price. It will compete effectively with steel products . Aluminium is used in air , building electric , and lightweight cars .

aluminium alloy : 

The properties of aluminum and mechanical resistance can be changed by adding one or more elements And produced aluminum alloys. Adding a small amount of manganese increases the strength of the aluminium . The combination of silicon and magnesium alloy together with better corrosion resistance and strength. Copper and zinc are used to produce high-strength alloys. Adding small amounts of chromium and nickel, tin, titanium and cadmium can also create special properties in the metal. 

aluminum applications in buildings : 

aluminum is one of the most widely used building materials due to their properties . It is made of aluminum, structural materials and architectural materials. The construction sections of buildings are used. Architectural sections are used for payment purposes or decorative purposes. the main application of these products is in window and window frames , curtain frames , walks , thresholds , thresholds , steps in window , hand , rod , etc. Plain sheets are used for steam and heat on ceilings and walls and as reflective insulation.

introduction of copper construction materials : 

this red metal was relatively soft And it has a good hammering ability. The metal bends easily in the cold state and don 't break . After silver, it is the best conductor of electricity. It is the most useful element in the metal industry , after iron and aluminum . The building uses copper sheets, electrical wires and copper pipes. About half of the world's copper products are used in the electricity industry.

lead and construction products : 

lead is the most sensitive and heavy industrial metal. Lead is light gray and oxidized against air. Lead has the ability to take many forms And in the cold state, it can be hammered. Lead is found in nature as sulfide, sulfate, carbonate in lead salts. Lead is used in a variety of ways in the building . For example, in buildings, lead is used as a lead sheet for sealing roofs and floors and foundations. Lead is used for decorative works. It is also used in the production of lead pipes, batteries, printed letters, ammunition and drilling, lead sheets, and wire coatings. Its arsenic compound is used in insecticides and its nitrate is used in dyeing And is used in ceramics as a colored material. 

Introduction of tin metal and its construction materials : 

this metal is white And is malleable. Tin is made from castrite ore. A reflective furnace is used to transform the ore. This metal due to its high resistance to corrosion. It is used in covering steel and iron roofing sheets. Sheets coated with pure foil are called clear tin sheets.