Alloyed Continue Casting Steel Billet by Blast Furnace Manufactured by Big Steel Mill

1.Structure of  Alloyed Continue Casting Steel Billet by Blast Furnace Manufactured by Big Steel Mill

Alloyed Continue Casting Steel Billet by Blast Furnace According to the Standard of YB2011-83 is the raw material of all kinds of steel mill. 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  Alloyed Continue Casting Steel Billet by Blast Furnace Manufactured by Big Steel Mill

Steel Bloom Manufactured by Blast Furnace 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. Alloyed Continue Casting Steel Billet by Blast Furnace Manufactured by Big Steel Mill Images

4.  Alloyed Continue Casting Steel Billet by Blast Furnace Manufactured by Big Steel Mill Specification

 Steel Bloom Manufactured by Blast Furnace  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

Material standard The editor Range of thickness: 150-240 - mm + / - 5 mm width range: 880-1530 - mm + / - 20 mm Length: 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 Section of tolerance: billet: 1.0 + / - 2.0-1.0 + / - 1.0 mm slab: width: + / - 2.0 mm thickness: + / - 3.0 mm The length tolerance: + / - 200 mm Section diagonal tolerance: 3.5-8.0 MM Billet section size protrusions requirements: < 1242 mm, do not allow; > = 1242 mm, < = 2 mm 1242 mm, < = 3 mm Beheading (shear) extension deformation: < 1242 mm billet: no control; The slab: < = 15 mm Surface tilt: no more than billet section 0.1 Bending: every 1 m length is not more than 10 mm The distortion: length < = 5 m, < = 11. ; The length of the < = 7.5 M, < = 5. Material % 3 sp/PS chemical composition: C Mn Si S P

5.FAQ of  Alloyed Continue Casting Steel Billet by Blast Furnace Manufactured by Big Steel Mill

We have organized several common questions for our clients，may help you sincerely： 

①How to check every lot of cargo?

Casting billet by batch acceptance, each batch is composed of the same brand, the same cross section size.

②What requirement according to the standard on the size?

 
Height is greater than the
3 mm
Scratches, indentation, scratch, pores, wrinkles, cold splash, handle, bump, pits
 
 
And depth is greater than the
2 mm
The hairline.Casting billet cross-section can not have shrinkage cavity, subcutaneous bubble.
Crack in continuous casting billet surface shall not be visible to the naked eye, overlapping, skull patch, or scarring, inclusion and depth
 
 
Height is greater than the
3 mm
Scratches, indentation, scratch, pores, wrinkles, cold splash, handle, bump, pits
 
 
And depth is greater than the
2 mm
The hairline.Casting billet cross-section can not have shrinkage cavity, subcutaneous bubble.

③How to check the appearance?

Appearance standard  2.1And the difference between the lengths of the continuous casting billet in cross section of diagonal should conform to the table2The provisions of the.  2.2And the degree of curvature of continuous casting billet per meter shall not be greater than20 mm,The total bending shall not be greater than the total length2%.  2.3, casting billet are allowed drum belly, but height shall not exceed the casting billet length allowed is deviation.  2.4Oblique cutting, casting billet end shall not be greater than20 mm. 2.5Casting billet end caused by shear deformation, spread shall not be greater than the length10%.  2.6, casting billet can not have apparent reverse..