Tag Archives: materials

What is stainless steel? Steel – a carbon-iron, which receives during quenching greater elasticity and firmness. In modern steel metallurgy mainly smelt iron and steel scrap. How to get stainless steel? In the steel compared to cast iron contains less carbon, silicon, sulfur and phosphorus. For steel from iron should reduce the concentration of substances by oxidizing melting. In modern metallurgical industry, there are three modes of production were: open-hearth, converter (design ga Bessemer or Thomas T.) and elektrostaleplavitelny. Open-hearth steel making method is that the iron is melted in a special (open hearth) furnaces, which are stationary and swinging. The essence of the converter method of producing steel is that in liquid iron, poured into the converter (vessel pear-shaped) bottom-blown air, thereby burning out the carbon and other impurities iron.

Finished metal is poured into a bucket and poured into a special form, called the mold. This has become a way of obtaining a number of advantages: high efficiency (duration of melting of 30 – 40 min), the compactness and simplicity of the device, the lack of fuel requirements for the process. Therefore, the cost of converter steel is low. However, converter steel is not used for critical structures because of the high content of nitrogen in it, oxides of iron and phosphorus, which could affect its quality. If, instead of air during purging of liquid iron using oxygen, I get the same quality steel hearth below. Converter steel is used for the manufacture of wire, small building profiles, welded pipes, bolts, soft roofing and sheet metal. When elektrostaleplavitelnom mode of production, steel is produced in special electric furnaces. This method of production is currently the most common. Kinds of steel pipes are distinguished the following types of Steel Pipe: Profiles, Seamless steel pipes, steel, corrosion-cold, tubing and other steel pipes used in construction, engineering, shipbuilding and other fields.

Consumer demand and sale of steel doors each year is steadily increasing. Wide price range for steel doors, manifold options and a huge range of related products require additional knowledge. Often, inexperienced buyers prefer cheap Chinese production of iron doors. As a result, shoddy goods do not meet the expectations of consumers as well as the thickness of the metal, the Russian steel the door is much more reliable. In order to buy the front door, tailored to your needs, you must submit to its further destination that will determine the choice of a metal door with the necessary characteristics.

In this case you will always help professionals of our company. We are also able to offer significant discounts for different steel doors. In the design, creation and subsequent installation of protective structures metal doors, for home and office are directly involved, our qualified professionals. Drawing on extensive experience of Russian and foreign manufacturers of doors, studying latest advances in the industry, we quickly introduce new technological solutions in our production of steel doors. Unfortunately, today very advanced crime forces us to take care of themselves. Fortunately, the yield on the protection of housing there – a strong metal door! Installation of metal door will solve the issue if not the full guarantee of protection for your home, it really against the encroachments of intruders – exactly! But what steel door is better to choose? The modern market offers a wide selection of doors of various kinds and various designs and the cost for them will vary quite significantly.

Talking about the qualities and characteristics of metal doors, note the following. They are durable, able to withstand rough physical action to provide protection against intellectual hacking (meaning the use of reliable locks). Bullet-proof and fireproof properties of the metal doors with access control inside the room (from glass to CCTV) will be useful to owners of offices. Heat and sound insulation properties, which has metal door, will successfully use it at home as the front door. In addition, the door will be pleasant in all respects: in the hearing – a quiet, almost silent on the form – beautiful. A quality assurance to you provide our manufacturer of doors. Metal doors are divided into two types: the first type – metal door. They carry a very protective function, do not give heat and sound insulation, so the most cheap; doors steel sandwich – would cost more, but for what they meet all the requirements assigned to them for protection, design, heat and sound insulation. Determine what qualities would have to have your steel door and Our experts will help you with this.