Semis

Rationalised sizes of Blooms, Billets and Slabs
Specification Application
IS 2830 Re-rolling into structurals, rounds and rebars
IS 2831 Commercial grade for re-rolling into structurals and rounds.
SAE 1070 Manufacture of tractor discs
EN 8, EN 9 – IS 1875 Forging purposes
SAIL Tower Re-rolling into structurals for TLT segment
SAILMA 350 Re-rolling into high tensile structurals
20 Mn Cr 5 Case hardening steel for automobile gear
SWR-EQ (IS:2879) Welding electrodes, welding m/c wires
SWR-14 Re-rolling into wire rods
SWR-10 Re-rolling into wire mesh
SAIL HCR Re-rolling into high corrosion resistant rebars
SAIL HCR-EQR Re-rolling into high corrosion and earthquake resistant rebars
SAIL Boron Tractor disc
Spring Steel/Sup 11A/Sup-9 Helical/Leaf Springs, Rail Clips
Chain Steel Chain links
High Carbon Wire rope, cycle spoke, Tyre bead etc.
ASTM A 105 Pipe Flanges
Product Width across Flat (mm) Thickness (mm) Tolerances (mm)
IS:2830 Billets Up to 75 ± 1.5
Over 75 ± 3
Blooms Up to 150 + 4.0, - 3.0
Over 150   + 6.0, - 3.0
Slabs Up to 300 Over 150 + 3.0, - 4.0
  Up to 150 + 3.0, - 6.0
Over 300 Up to 150 + 5.0, - 10.00
Item Size Sectional Weight MillMill
Blooms Bhilai Steel Plant
  150 x 150 176.63 BBM
  260 x 330 673.53 BBLM
  280 x 285 626.43 BBLM
  295 x 320 741.04 BBLM
  300 x 325 765.38 BBLM
  300 x 335 788.93 BCCS
  310 x 340 827.39 BBLM
  320 x 320 803.84 BBLM
  Durgapur Steel Plant
  200 x 200 314 DBLM
  210 x 160 263.76 DBLM
  230 x 160 288.88 DBLM
  250 x 160 314 DBLM
  250 x 210 398 DBLM
  250 x 300 588.75 DBLM
  250 x 320 628 DBLM
  270 x 150 317.93 DBLM
  300 x 140 329.7 DBLM
  300 x 250 588.75 DBLM
  350 x 140 384.65 DBLM
  365 x 140 401.14 DBLM
  210 x 160 263.76 DBCP
  230 x 160 288.88 DBCP
  300 x 150 353.25 DBCP
  350 x 150 353.25 DBCP
  350 x 150 412.13 DBCP
  350 x 240 659.4 DBRCP
  340 713.00 DBRCP
  IISCO Steel Plant
  150 x 150 176.63 ICCP
Billets Bhilai Steel Plant
  90 x 90 63.59 BBM
  100 x 100 78.50 BBM
  105 x 105 86.50 BBM
  Durgapur Steel Plant
  100 x 100 78.5 DBM/DCCP
  125 x 125 122.66 DBM/DCCP
Slabs Bhilai Steel Plant
  200 x 250 392.50 BBLM
  200 x 310 486.70 BBLM
  200 x 410 643.70 BBLM
  205 x 325 523.01 BBLM
  205 x 405 651.75 BBLM
  200 x 1250 1962.50 BCCS
  200 x 1300 2041.00 BCCS
  200 x 1500 2355.00 BCCS
  250 x 1500 2943.75 BCCS
  320 x 1500 3768.00 BCCS
Common grades IS 2830, IS 2831, SAE 1070, EN 8, EN 9, SAIL Tower, SAILMA, 20 Mn Cr 5, IS 1875, SWR-14, SAIL HCR,
Abbreviations

BCCS :Bhilai Continuous Casting Shop
BBLM : Bhilai Blooming Mill
BBM : Bhilai Billet Mill
BMM : Bhilai Merchant Mill
DBLM : Durgapur Blooming Mill
DBCP : Durgapur Bloom Caster Plant
DBM : Durgapur Billet Mill
DCCP : Durgapur Continuous Casting Plant
IBCP : ISP Bloom Caster Plant
ICCP : ISP Continuous Casting Plant
Chemical Composition
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