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ISO 5954 Document Information:
Title
Cold-reduced carbon steel sheet according to hardness requirements
International Organization for Standardization
Publication Date:
Dec 1, 2007
Scope:
This International Standard applies to cold-reduced carbon steel
sheet and corresponding hardness requirements. It is suitable for
applications where the surface is of prime importance.
The fabrication limits of cold-reduced carbon steel sheet
according to hardness requirements are dependent on the specific
range of hardness specified or agreed to. It is produced in
thicknesses of 0,36 mm and above (commonly produced up to 3 mm) and
in widths of 600 mm and over in coils and cut lengths. The hardness
is commonly reported as Rockwell B (HRB).
The following are common hardness ranges (see 5.6):
— CRH-50 Rockwell B 50 to 70;
— CRH-60 Rockwell B 60 to 80;
— CRH-70 Rockwell B 70 to 90;
— CRH-NN Any Rockwell B range of 20 points up to and
including HRB 90 maximum (designated minimum of specified range
will be shown).
NOTE By agreement between the supplier and purchaser, Rockwell
ranges less than 20 points can be specified.
Cold-reduced sheet less than 600 mm wide can be slit from wide
sheet and will be considered as sheet.
This International Standard does not cover commercial quality or
drawing qualities (covered in ISO 3574) and cold-reduced carbon
steel strip.
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