ISO specifies the tolerances on dimensions and form for continuously cold-rolled stainless steel wide strip and plate/sheet, in thicknesses from 0, Continuously cold-rolled stainless steel – Tolerances on dimensions and form – Part 2: Wide strip and plate/sheet (ISO ); German. Continuously cold-rolled stainless steel narrow strip, wide strip, plate/sheet and cut lengths – Tolerances on dimensions and form (ISO.
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This standard is designed to bring together tolerances for cold rolled narrow and wide strip.
It has officially superseded EN and EN although of course customers and suppliers are entitled to continue to use these standards. The major differences are:. This covers material slit from such products and cut lengths. Wide strip is defined as having a rolled width of – mm from 0. The phrase “specified thickness” is preferred oso “nominal thickness” in this ISO standard.
There is a view that the combination of all cold rolled products into one standard can be confusing. There are moves towards separating out narrow and wide products into two standards. This summary adopts this approach as for every tolerance type dij are different values for narrow and wide products. The flatness tolerance for cut lengths from narrow strip shall not exceed 10mm for normal cases and 7mm where a special tolerance is required. This does not apply to material in the work hardened condition which must be agreed at the time of the enquiry and order.
Article: Tolerances to ISO for cold rolled narrow and wide strip, plate/sheet and cut lengths
For skin passed or stretch levelled narrow strip, the ratio of the wave height to wave length shall be a maximum of 0. Method A – identical to EN Thickness is measured at any point located more than 20mm from the edge for 94455 edges and 30mm for mill edges.
Method B – Thickness is measured at any point located more than 15mm from the edge for slit edges and 25mm for mill edges. This is similar to Japanese standards. Length tolerances also have both ‘normal’ and ‘special’ tolerance ranges.
Each range is proportional to the length of the sheet or cut length, with a minimum tolerance at mm length. Unlike the old standards, these tolerances apply for any length that can be supplied, and across the whole thickness range. As in EN there are two ways to specify out of squareness and the values are identical to this standard. When ordering an agreement may be made that the ordered format i.
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In this case, the tolerances on ios, length, edge camber and out of squareness shall be agreed at the time of the enquiry and order. Deviation with respect to flatness shall be taken as the greatest distance between the product and a straight edge placed upon it. The straight edge should be either or mm long. It may be placed on the product at any position and in any direction. Only djn position of the points of contact of product and straight edge shall be taken into account.
For strip, the waviness of the edges, i.
Office and Postal Address: The major differences are: Slightly different edge camber 9454 than in EN for wide strip. Provision for width tolerance on wide strip with mill edges.
Edge camber tolerances for measuring lengths. Special tolerances S for a nominal width w of. Length L of sheet plate or cut length. Maximum difference in diagonal lengths.