ISO 5954:2014 pdf free

ISO 5954:2014 pdf free.Cold-reduced carbon steel sheet according to hardness requirements
The better of the two surfaces shall be free of imperfections which might affect the uniform appearance of quality paint or an electrolytic coating (see 5.4). The other surface shall at least conform to surface quality A.
In the case of delivery of coil and slit coil, the percentage of defects might be greater than in the case of delivery in sheet or cut lengths. This should be taken into account by the purchaser, and the percentage of admissible surface defects can be agreed at the time of the enquiry and order. Unless otherwise agreed,a single surface of the product shall comply with the specified requirements. The other surface shall be such that, during subsequent treatment, it does not have a deleterious effect on the better surface.
This productis normally suitable forwelding ifappropriate welding conditions are selected. The hardness can be changed in the heat-affected zone of the welds. When the mass fraction of carbon exceeds 0,15 % or the mass fraction of phosphorus exceeds 0,05 %, welding becomes more difficult.
It is desirable that cold-reduced steel sheet and corresponding hardness requirements be identified for fabrication by the name of the part or by the intended application. Proper identification of the part can include visual examination, prints, or description, or a combination of these. Details of fabrication and special requirements (exposed or unexposed, freedom from stretcher strains or fluting) shall be specified, as well as the hardness range.
Although bend tests are not required, CRH-50 is expected to be capable of being bent flat on itself through 180 both parallel and perpendicular to the rolling direction. CRH- 60 is expected to be capable of being bent through 90°, with the axis of bend parallel to the rolling direction on a 1 thickness radius,or flat on itself perpendicular to the rolling direction with a 1 thickness radius. CRH-70 is expected to be capable of being bent 90° with a 1 thickness radius perpendicular to the rolling direction. By agreement between the supplier and purchaser, a bend test can be carried out with these or other values of bend radii.ISO 5954 pdf free download.