คำถามที่พบบ่อย | VRSteel เช็คราคาเหล็ก เหล็กเส้น เหล็กกล่อง ราคาเหล็ก เฉพาะคุณ คำถามที่พบบ่อย – VRSteel เช็คราคาเหล็ก เหล็กเส้น เหล็กกล่อง ราคาเหล็ก เฉพาะคุณ
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FREQUENTLY ASKED QUESTIONS

01/ CAN STEEL BE RECYCLED?

Yes, very easily. Steel's unique magnetic properties make it an easy material to recover from the waste stream so it can be recycled. The properties of steel remain unchanged no matter how many times the steel is recycled. The electric arc furnace (EAF) method of steel production can use recycled steel exclusively. Steel is the world's most recycled material.


02/ HOT-ROLLED STEEL

HRC. The downstream steel industry. From the slab (Slab) through the process of hot rolled at a temperature of approximately 1100-1250 degrees Celsius to reduce the size of the resulting. Cooled by the coolant. HRC. Can be used as raw material. Various industries such as construction, shipbuilding industry, steel industry, processing industry, industries - petroleum, etc..


03/ WHAT IS STEEL?

Steel is an alloy that consists of iron and carbon (less than 2% depending on the grade) and manganese 1% and others such as, silicon, phosphorus, sulfur, and oxygen. Steel is one of the most important materials because it is a part of all construction including instruments, utensils and vehicles.


04/ PIG IRON

Raw steel production. Derived from the stove or oven on a gas ballast Furness (Blast Furnace) by smelting iron ore. The heat is used in the smelting of. Combustion of coke (Coke) with hot air is what keeps the combustion temperature to be higher. By heating up to 3000 ° F or 1649 ° C at which temperature it is. Various ore is melted.Another important thing is. In the process of melting the iron ore with high heat. The impurities occurs. Also known as the swap (Slag), which must be removed from the metal. Before the metal is poured into a steel mold. To get the steel out. For raw materials. The raw steel and iron ore, limestone, coke and reuse.


05/ STEEL

Steel from the furnace to the amount of impurity elements. A number of which are fragile and can not be used for anything useful. It must be passed.The process again. In order to reduce the amount of elemental impurities. And to achieve. Mixture as needed. These procedures are called the Three Fine (Refining) The Oval Fine Steel is. Steel itself.Carbon steel, alloy steel, so it was up 1.7 percent to forging it. At temperatures between 800 - 1000 ° C without any further processing.Of introduction. We can conclude that HRC. It is a kind of steel in the manufacture of steel. Will be processed into other substances added to improve the properties of the steel, the better.