HR Sheets
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Product Code: HR Sheets
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Hot Rolled (HR) Steel Sheets are industrial grade flat steel sheets with a rectangular cross-section. They are manufactured at elevated temperatures on rolling mills from steel slabs or billets. They form a major source of raw material in the manufacturing and infrastructure segment thanks to its distinct mechanical properties, quality and versatility. Like all other hot rolled products, hot rolled sheets have got a rough texture with a slightly bluish-grey finish.
Comparison
between HR Strip & PATRA
|
TOPIC |
PATRA |
HR COIL |
|
Manufacturing
process |
Patra rolled by ordinary mill. |
HR STRIP rolled by tandem mill ‘HSM’. In
HSM there are additional facilities available for improving quality of HR
STRIP. |
|
Raw material Quality |
Manufacturing from ingot or commercial
grade materials. |
Manufacturing from slabs , blooms
& billets which are manufactured by iron ore |
|
Chemical composition |
There is no control on the chemical composition
due to mixing of variety of low grade material |
Homogenous chemical composition . |
|
Surface Finish |
Rough surface which lower the finished
product quality . |
Enhanced surface finish ensuring high
quality |
|
Thickness consistency |
Lot of variation due to manual
setting. |
No variation due to HAGC system, &
better HSM technology. |
|
Length |
No provision for coiling of strip & therefore Patra is rolled with
length of approx. 30mts |
Due to superior technology of HSM ,
max length can be derived. |
|
Physical properties |
Physical properties are not matched
with the application , because of non homogenous nature of chemical
composition |
Because of high technological steel
making route , complete rang e of application are covered. |
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