Semis

Semis


Billets

A semi-finished product which are similar to blooms but of smaller cross sectional size (usually less than or 5''x5''/7''x7''. These are used as input material for production of Finished Steel long products viz. bars & rods, light sections etc.


Blooms

A Semi-finished product, usually in square (at times in rectangular) section of cross sectional size exceeding 5”x5” (125mm X 125mm). In some of the modern mills, the term bloom is used to cover such products of cross sectional size exceeding 8”x8”. These are inputs for producing Heavy sections and Sheet piling section normally by hot rolling. At times, like in VSP, blooms are used to produce billets by hot rolling in the Billet Mill.


Slab

A semi-finished Rectangular, wide, semi-finished steel product intended for production of finished Hot Rolled Flat products viz. Plates, sheets, Strips etc. They are normally of width 150-250mm wherein width is at-least 3 or 4 times of thickness.


Thin Slab

In modern thin slab casting machine, liquid steel is continuously cast into much thinner slabs of 35-50mm directly which are used for production of Finished Hot Rolled Flat products upon heating on-line.


Zinc Ingots, Zinc Jumbo slabs, PM Plates, Prime Plates, Second Quality Plates, Crane Rail, Rail, Defective Rail, Angle, Channel , TMT Rods
Zinc Ingots, Zinc Jumbo slabs, PM Plates, Prime Plates, Second Quality Plates, Crane Rail, Rail, Defective Rail, Angle, Channel , TMT Rods
Zinc Ingots, Zinc Jumbo slabs, PM Plates, Prime Plates, Second Quality Plates, Crane Rail, Rail, Defective Rail, Angle, Channel , TMT Rods
Zinc Ingots, Zinc Jumbo slabs, PM Plates, Prime Plates, Second Quality Plates, Crane Rail, Rail, Defective Rail, Angle, Channel , TMT Rods

Rationalized Sizes Of Blooms, Billets and Slabs


Blooms

Item Size mm Sectional Weight Kg/m
Blooms 150 X 150 176.63
260 X 330 673.53
280 X 285 626.43
295 X 320 741.04
300 X 325 765.38
300 X 335 788.93
310 X 340 827.39
320 X 320 803.84

Billets

Item Size mm Sectional Weight Kg/m
Billets 90 X 90 63.59
100 X 100 78.50
105 X 105 86.50

Slabs

Item Size mm Sectional Weight Kg/m
Slabs 200 X 250 392.50
200 X 310 486.70
200 X 410 643.70
205 X 325 523.01
205 X 405 651.75
200 X 1250 1962.50
200 X 1300 2041.00
200 X 1500 2355.00
250 X 1500 2943.75
320 X 1500 3768.00

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

Application

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/S 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