Metal container comprising a steel sheet with low aluminum content
AssigneeSollac
InventorMohamed Bouzekri
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Abstract
The present invention provides a steel sheet with low aluminum content, which includes: between 0.050 and 0.080% by weight of carbon, between 0.25 and 0.40% by weight of manganese, less than 0.020% by weight of aluminum, and between 0.010 and 0.014% by weight of nitrogen, the remainder being iron and inevitable trace impurities, wherein when in an aged condition the sheet includes a percentage elongation A% satisfying the relationship: (750−Rm)/16.5≦A%≦(850−Rm)/17.5 where Rm is the maximum rupture strength of the steel, expressed in Mpa. Another embodiment of the invention provides a container, which includes or is made from the above-mentioned steel sheet.
Claims7
A metal container for food, the metal container comprising a steel sheet with low aluminum content, comprising:
- between 0.050 and 0.080% by weight of carbon,
- between 0.25 and 0.40% by weight of manganese,
- less than 0.020% by weight of aluminum, and
- between 0.010 and 0.014% by weight of nitrogen,
- the remainder being iron and inevitable trace impurities, wherein
- the steel sheet is in an aged condition such that the sheet comprises a percentage elongation A% satisfying the relationship:
- (750−Rm)/16.5≦A%≦(850−Rm)/17.5
- where Rm is the maximum rupture strength of the steel, expressed in MPa.
Dependencies are inferred from the claim text.