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BSP: Semis

Rationalised sizes of Blooms, Billets and Slabs

Item Size
mm		 Sectional Weight
kg/m		 Mill
Blooms 150 x 150 172.00 BBM
260 x 300 585.00 BBLM
280 x 285 581.00 BBLM
295 x 320 700.00 BBLM
300 x 325 730.00 BBLM
300 x 335 765.00 BCCS
310 x 340 770.00 BBLM
320 x 320 735.00 BBLM
Billets 60 x 60* 28.00 BMM
90 x 90 60.70 BBM
100 x 100 76.20 BBM
110 x 110 92.00 BBM
Slabs 200 x 1250 1942.00 BCCS
200 x 1300 2020.80 BCCS
200 x 1500 2355.00 BCCS
250 x 1500 2943.75 BCCS
320 x 1500 3768.00 BCCS

* Rounded corners square

Abbreviation used  
BCCS Bhilai Continuous Casting Shop
BBLM: Bhilai Blooming Mill
BBM: Bhilai Billet Mill
BMM: Bhilai Merchant Mill

Common grades: IS 2830/1992, IS 2831/1975, SAE 1070, 
EN 8, EN 9, SAILTower, SAILMA, 20 Mn Cr 5, IS 1875/1992.

For Chemical Composition click here

Tolerance

   Product Width across Flat mm Thickness
mm		 Tolerance
mm
IS:2830/ 1992 Billets Up to 75Over 75 -- ± 1.5± 3
   Blooms Up to 150Over 150 -- + 4.0, - 3.0+ 6.0, -3.0
   Slabs -Up to 300Over 300 Over 150Up to 150 + 3.0, - 4.0+ 3.0, - 6.0+ 5.0, -10.00

Applications

Specification Application
IS 2830/1992 IS 2831/1975 For re-rolling into structurals for load bearing purposes
SAE 1070 For manufacture of tractor discs
EN 8, EN 9IS 1875/1992 For forging purposes
SAILTower For re-rolling into structurals for TLT segment
SAILMA 350 For re-rolling into high tensile structurals
20 Mn Cr 5 Case hardening steel for automobile gear manufacturing
SWR-14 For rerolling into Wire Rods
SAIL HCR For rolling into high corrosion resistant rebars

 
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