Semis
Blooms, Billets and Slabs
| Rationalised sizes of Blooms, Billets and Slabs | |||
|
Item |
Size |
Sectional Weight Kg/m |
Mill |
|
Blooms |
Bhilai Steel Plant |
||
|
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 |
|
|
Durgapur Steel Plant |
|||
|
150 x 150 |
176.63 |
DCCP |
|
|
185 x 160 |
239.62 |
DBLM |
|
|
190 x 160 |
230.00 |
DBLM |
|
|
200 x 160 |
242.00 |
DBLM |
|
|
200 x 200 |
314.00 |
DBLM |
|
|
210 x 160 |
255.00 |
DBLM |
|
|
230 x 160 |
279.00 |
DBLM |
|
|
230 x 230 |
400.00 |
DBLM |
|
|
240 x 160 |
291.00 |
DBLM |
|
|
250 x 160 |
303.00 |
DBLM |
|
|
250 x 210 |
398.00 |
DBLM |
|
|
250 x 250 |
490.63 |
DBLM |
|
|
260 x 140 |
276.00 |
DBLM |
|
|
300 x 140 |
318.00 |
DBLM |
|
|
300 x 250 |
568.00 |
DBLM |
|
|
300 x 300 |
706.50 |
DBLM |
|
|
350 x 140 |
371.00 |
DBLM |
|
| 365 x 140 | 387.00 | DBLM | |
|
Billets |
Bhilai Steel Plant |
||
|
60 x 60* |
28.00 |
BMM |
|
|
90 x 90 |
60.70 |
BBM |
|
|
100 x 100 |
76.20 |
BBM |
|
|
110 x 110 |
92.00 |
BBM |
|
|
Durgapur Steel Plant |
|||
|
100 x 100 |
76.80 |
DBM/DCCP |
|
| 125 x 125 | 122.65 | DBM | |
|
Slabs
|
Bhilai Steel Plant |
||
|
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 |
|
|
Durgapur Steel Plant |
|||
|
140 x 80 |
86.83 |
DBM |
|
|
150 x 80 |
93.11 |
DBM |
|
|
160 x 80 |
99.39 |
DBM |
|
|
180 x 80 |
111.16 |
DBM |
|
|
190 x 80 |
117.44 |
DBM |
|
|
205 x 75 |
118.82 |
DBM |
|
| 235 x 75 | 136.48 | DBM | |
| 240 x 75 | 139.42 | DBM | |
* Rounded corners square
|
Abbreviation used: |
BCCS: |
Bhilai Continuous Casting Shop |
|
BBLM: |
Bhilai Blooming Mill |
|
|
BBM: |
Bhilai Billet Mill |
|
|
BMM: |
Bhilai Merchant Mill |
|
|
DBLM: |
Durgapur Blooming Mill |
|
|
DBM: |
Durgapur Billet Mill |
|
|
DCCP: |
Durgapur Continuous Casting Plant |
Common grades: IS 2830/1992, IS 2831/1975, SAE 1070, EN 8, EN 9, SAILTower, SAILMA, 20 Mn Cr 5, IS 1875/1992 SWR -14,SAIL HCR
For Chemical Composition click here
Tolerances
|
Product |
Width across Flat mm |
Thickness |
Tolerances |
|
|
IS:2830/ 1992 |
Billets |
Up to 75 Over 75 |
- - |
± 1.5 ± 3 |
|
Blooms |
Up to 150 Over 150 |
- - |
+ 4.0, - 3.0 + 6.0, -3.0 |
|
|
Slabs |
- Up to 300 Over 300 |
Over 150 Up to 150 |
+ 3.0, - 4.0 + 3.0, - 6.0 + 5.0, -10.00 |
Applications
|
Specification |
Application |
|
IS 2830/1992 |
For rolling into structurals for load bearing purposes |
|
SAE 1070 |
For manufacture of tractor discs |
|
EN 8, EN 9 |
For forging purposes |
|
SAILTower |
For rolling into structurals for TLT segment |
|
SAILMA 350 |
For rolling into high tensile structurals |
|
20 Mn Cr 5 |
Case hardening steel for automobile gear manufacturing |
|
SWR-14 |
For rolling into Wire Rods |
|
SAIL HCR |
For rolling into high corrosion resistant rebars |
 |
