Recognize the "billet"

The billet is a product obtained after the molten steel produced in a steelmaking furnace is cast. Billets can be divided into two types from the manufacturing process: die cast billets and continuous cast billets, and the current die casting process has basically been eliminated.

basic introduction

The billet is a product obtained after the molten steel produced in a steelmaking furnace is cast.

Billets can be divided into two types from the manufacturing process: die cast billets and continuous cast billets, and the current die casting process has basically been eliminated.

Mainly divided into two kinds from the appearance:

Slab: The ratio of width to height is large and it is mainly used to roll plates.

Billet: wide, high or equal, or not much difference, mainly used for rolling steel, wire rod.

Material standards

Thickness range: 150-240mm +/-5mm Width range: 880-1530mm +/-20mm

Length range: 3700-10000mm +/-500mm

Cross-sectional dimensions: 64*64; 82*82; 98*98; 124*124; 120*150; 52*164; 152*170mm

Length: 9000mm

Section Tolerance: Billet: +1.0/-2.0----+3.0/-1.0mm Slab: Width: +/-2.0MM Thickness: +/-3.0MM

Length tolerance: +/-200MM

Section Diagonal Tolerance: 3.5-8.0MM

Billet section size requirements: <1242MM, not allowed; = 1242MM, <=2MM >1242MM, <=3MM

Decapitation (Shear) Extended Deformation: <1242MM Billet: Uncontrolled; Slab: <=15MM

Surface tilt: no more than 0.1 for blank section

Curvature: no more than 10MM per 1M length

Distortion: length <= 5M, <= 11. Length <=7.5M, <=5.

Material 3SP/PS Chemical composition %: C Mn Si SP.