Hot rolled coils are steel plates made of slabs as raw material and rolled by rough rolling and finishing rolling units after heating. Generally it includes the medium-thick and wide steel strip, the ...
Common steel products are hot rolled steel and cold pressed steel. In general, mechanical properties of hot rolling are better than that of cold rolling. After heat treatment, steel's tensile, yie...
Cold rolled steel is made of hot rolled coils at room temperature and then rolled below the crystallization temperature. Many steel mills in China can produce them. Among them, the ones delivered in p...
Medium carbon steel is a kind of carbon steel with a carbon content of 0.25% to 0.60%. It includes most of high-quality carbon structural steel and part of ordinary carbon structural steel. Medium car...
Iron ore fines is a kind of ore fines which is made from iron ore (ore containing iron elements or iron compounds) through processing, such as ore processing, crushing, sorting, and grinding. The type...
1. Pig iron is usually divided into steel-making pig iron, casting pig iron and alloy pig iron according to different purposes.2. Mainly magnetite, hematite, sub-hematite magnetite, hematite, maghemit...
High carbon steel is often called as tool steel, with the carbon content ranging from 0.60% to 1.70%, which can be quenched and tempered. The hammers, crowbars and some others are made of steel with t...
Low carbon steel is a kind of carbon steel with the carbon content less than 0.25%. Because of its low strength, low hardness, softness, so it is also called mild steel. It includes most ordinary carb...
Iron ore is an important raw material for steel production enterprises. Different types of iron ore naturally have different characteristics. Now the following will illustrate several important iron o...
Making steel from iron ore methods can be generally divided into converter steelmaking and open hearth steelmaking. Now they are introduced as follows:1. Converter steelmaking processThe oxidant used ...
In China, iron ore is used to make iron directly, so how is iron extracted? The early method is to make iron by block, and later by shaft furnace. In the late spring and Autumn period, liquid pig iron...
Iron ore is an important raw material for iron and steel production enterprises: iron is gradually selected through crushing, grinding, magnetic separation, flotation, gravity separation and other pro...
There are many iron minerals in nature. There are more than 300 kinds of four kinds of iron ores that have been known by people, but there are only 20 kinds of iron ore used as raw materials now, the ...
Iron ore is the main raw material for long process steelmaking in iron and steel enterprises, and more than 80% of them adopt long process steelmaking. As the substitute of iron ore, scrap steel is th...
In general, the tensile strength, yield strength, plasticity and toughness of hot-rolled steel after overheating treatment will be improved. In addition, heat treatment can eliminate residual stress, ...
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