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Steel Billet Produced by Big Blast Furnace
1.Structure of Steel Billet Produced by Big Blast Furnace
Steel Billet Produced by Big Blast Furnace Billet section of square, round, flat, rectangular and abnormity, etc Several, mainly related to shape of rolled products. Simple rolled section steel, choose cross section of square billet or rectangular billet. rolling The sector products such as flat steel, Angle steel, select the rectangular billet or slab. Had better profiled billet when production beams, channels, and in rolling process Lines and improve the yield. The raw material of round billet is the production of seamless tube.
2.Main Features of Steel Billet Produced by Big Blast Furnace
Steel Billet Manufactured by Blast Furnace without Boron section size should meet the requirements of rolling deformation and finished product quality, but also roll strength and biting condition of restrictions. General steel Billet section height H. And the roll diameter D The ratio of the ( namely H/D) Should be less than or equal to zero 0.5 . Length of steel billet by finishing temperature, Rolling time and the length of the product Or times ruler. When heated too long accident prone to bump the furnace wall of steel, too short, furnace bottom utilization rate is not high, influence the heating furnace production. For the production Choose a variety of steel and steel billet, should consider the affinities of billet, as far as possible in order to improve the productivity of the roughing mill, simplify the stock management of workshop.
3. Steel Billet Produced by Big Blast Furnace Images
4. Steel Billet Produced by Big Blast Furnace Specification
Steel Billet Manufactured by Blast Furnace without Boron rolled steel, after processing can be used for mechanical parts, forging parts, processing all kinds of steel, steel Q345B channel steel, wire rod is the role of the billet. Steel billet is used in the production of semi-finished products, generally cannot be used directly for the society. Steel billets and steel are strictly divided into standard, cannot decide to whether the business enterprise of the final product, and according to unified standards to perform the whole society. Typically, billet and the steel is relatively easy to distinguish, but for some steel billet, and have the same specification and same steel purposes (such as rolling tube billet), whether can be used for other industries, whether through steel processing process, whether through a finished product rolling mill processing to distinguish
The classification of the Bloom Mainly from the shape is divided into two kinds: Slab: cross section width and height of the ratio of the larger, mainly used for rolling plate. Bloom: equal cross section width and height, or a huge difference, mainly used for rolling steel, wire rod.
Bloom material standard The thickness range: 150-240 - mm + / - 5 mm The width of the range: 880-1530 - mm + / - 20 mm Length range: 3700-10000 - mm + / - 500 - mm Cross-sectional size: 64 * 64 ; 82 * 82 ; 98 * 98 ; 124 * 124 ; 120 * 150 ; 152 * 164 ; 152 * 170 mm Length: 9000 mm The section of tolerance: Bloom: 1.0 + / - 2.0-1.0 + / - 1.0 mm The slab width: + / - 2.0 MM ; Thickness: + / - 3.0 MM
5.FAQ of Steel Billet Produced by Big Blast Furnace
We have organized several common questions for our clients，may help you sincerely：
①How is the standard you can meet?
For the chemical composition, according to the Chinese standard of GB700-88, and the section size according to the standard of YB2011-83,
②How is the chemical standard?
Si％ S％ P％ Q215
A 0.09～0.15 0.25～0.55 ≤0.30 ≤0.050 ≤0.045 B 0.09～0.15 0.25～0.55 ≤0.30 ≤0.045 ≤0.045 Q235
0.14～0.22 0.30～0.65 ≤0.30 ≤0.050 ≤0.045 B 0.12～0.20 0.30～0.70 ≤0.30 ≤0.045 ≤0.045 C ≤0.18 0.35～0.80 ≤0.30 ≤0.040 ≤0.040 D
③How is the packaging and delivery?
Exporting Package with the steel material cover and the delivery term is based on the project.
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