Hot Rolled Coil, Sheets and Plates

Flat rolled steel produced from slab which is put through the mill work rolls to determine the final thickness while at high temperatures.

Typical uses for Hot Rolled Steel
Automotive, truck frames, automotive wheels, pipe and tubular, water heaters, agriculture equipment, compressor shells, truck frames, railcar components, wheel rims, metal buildings, tippers, trailers, doors, shelving, wheel rims, discs, guard rails, pipe and tubular & automotive components


Formability
Hot Rolled Sheet is used for a wide range of applications, from simple bends to complex draws or structural applications that require a specific strength level. The steel grade and processing technique of the metal are important in order to meet the customer requirements.


Chemical Composition ( Product Analysis ) IS 2062

Grades C (Max) Mn (Max) P (Max) S (Max) Si (Max) A1 (Min) Nb (Max) V (Max) Ti (Max) CE (Max)
>Grade A 0.23 1.50 0.035 0.035 0.30 0.02 - - - 0.42
>Grade B 0.22 1.50 0.035 0.035 0.30 0.02 - - - 0.41
>Grade C 0.20 1.50 0.035 0.035 0.30 0.02 - - - 0.39

Mechanical Properties

Properties Grade A Grade B Grade C
>Y. S. (MPa) min
<20mm
20-40mm
>40mm
250
250
250
240
240
240
230
230
-
>U.T.S (MPa) min 410 410 410
>EI %(min) 5.65vA 23 23 23

Bend Test (IS 1599)

Thickness Grade A Grade B Grade C
><25mm 3t 2t 2t
>>25mm 3t 3t 2t

Impact Test (charpy V notch)*

Thickness Temp. Grade A Grade B Grade C
>8-70mm 0 degree C - 27J -
>8-32mm -20 degree C - - 27J

*Average of three tests

Thickness Range  
>Grade A 8-150mm
>Grade B 8-70mm
>Grade C 8-32mm
>Heat Treatment Online Self Normalising
>Inspection Agency JSW / Customer / Other Inspection agencies
>Remarks Nitrogen content 90 PPM max.

HR Steel Grades for forming operations
Chemical composition (Product Analysis)

Grades C (Max) Mn (Max) P (Max) S (Max) Si (Max) A1 (Min) Nb (Max) V (Max) Ti (Max) CE (Max)
Fe 330 0.17 1.00 0.035 0.035 0.30 0.02 - - - -
Fe 360 0.17 1.20 0.035 0.035 0.30 0.02 - - - -
Fe 410 0.20 1.30 0.035 0.035 0.30 0.02 - - - 0.42
Fe 510 0.20 1.50 0.035 0.035 0.30 0.02   0.02 - 0.08 to be added in single / Combination**   0.45

Mechanical Properties

Properties Fe330 Fe360 Fe410 Fe510
Y.S (MPa) min 205 235 255 355
U.T.S. (MPa) 330-440 360-470 410-520 510-620
EI % (min) 5.65
vA
25 25 23 20

Bend Test (IS 1599)

Thickness Fe330 Fe360 Fe410 Fe510
<12mm 1 t 1 t 2 t 2 t
>12-25mm 2 t 2 t 3 t 3 t

Impact Test (charpy V notch)*

Thickness Temp. Fe330 Fe360 Fe410 Fe510
12-25mm 0 degree C 27 J 27 J 27 J 27 J

*Average of three tests

Thickness Range 8-63mm
Heat Treatment Online Self normalizing
Inspection Agency JSW / Customer / Other Inspection agencies
Remarks Nitrogen content 90 PPM max.

Hot rolled pickled and oiled is a product with an enhanced surface finish due to the pickling process. This is cleaning process used to remove black oxide scale that forms on the steel after hot rolling.

Typical uses for Hot Rolled P&O
Automotive components, truck frames, shelving, automotive wheels, pipe and tube, water heaters, agriculture equipments, equipment,compressor shells, truck frames, wheel rims, metal buildings, doors, shelving, wheel rims, discs & guard rails.

Formability
Used for a wide range of applications, from simple bends to complex draws or structural applications that require a specific strength level. In order to meet all the customer requirements for this variety of applications, proper selection of the steel grade and production processing practices are imperative.


TO PROVIDE HRPO TECHNICAL DETAILS IS 1079 D, SAPH 440