ISO 9445-2 PDF

In this case, the tolerances on width, length, edge camber and out of squareness shall be agreed at the time of the enquiry and order. This is identical to the requirements of EN These requirements do not apply to work hardened material or condition 2D. The flatness can be measured in the following ways: a For maximum deviation from a flat horizontal surface, with the product lying under its own mas on a flat surface, the maximum deviation from flatness in the maximum distance between the lower surface of the product and the flat horizontal surface.

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It is identical to ISO A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions.

This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September , and conflicting national standards shall be withdrawn at the latest by September Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The work of preparing International Standards is normally carried out through ISO technical committees.

Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. The main task of technical committees is to prepare International Standards.

Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. ISO shall not be held responsible for identifying any or all such patent rights. It also applies to cut lengths taken from such strip. Narrow strip and cut lengths with widths of less than mm, which are manufactured from wide strip by longitudinal slitting, are covered in ISO For dated references, only the edition cited applies.

For undated references, the latest edition of the referenced document including any amendments applies. Such requirements to be considered include, in the order listed, but are not limited to, the following: a the type of delivery [see 5. EXAMPLE 1 Cold-rolled narrow strip according to this part of ISO with a specified thickness of 0,25 mm, precision thickness tolerance P , with a specified width of mm, precision tolerance on width P , and with restricted tolerance on edge camber R.

These products will have burrs caused by cutting. If there are special requirements for these edges, corresponding agreements shall be made on ordering. In any case, the total range of the tolerance shall remain as in the table. In both cases, the total range of the tolerance shall remain as in the table above. Preferred inside diameters of coils are approximately mm, mm, mm and mm with a limitation for the diameter mm which is not usually available for strip thicknesses above 2,0 mm.

These tolerances do not apply to material supplied in the work-hardened condition, for which any requirement shall be agreed between manufacturer and purchaser. Table 4 — Tolerances on edge camber for cold-rolled narrow strip and cut lengths obtained from cold-rolled narrow strip Dimensions in millimetres a Specified width Edge camber tolerancesfor measuring lengths w 1 2 1 2 Normal Restricted R 10 u w 2 5 4 16 1,5 6 25 u w 4 0 3 12 1,25 5 40 u w 1 25 2 8 1,0 4 u w 6 00 1,5 6 0,75 3 a If applicable, both measuring lengths shall be used.

For cut lengths obtained from cold-rolled narrow strip in widths less than mm, the value is to be agreed at the time of enquiry and order. This requirement does not apply to material supplied in the work hardened condition and in the condition 2D cold rolled, heat treated, pickled.

Gradual displacement of the edge of the strip to one side shall not exceed 35 mm in the case of trimmed slit edges and 70 mm in the case of mill as rolled edges. In this case, the tolerances on width, length, edge camber and out-of-squareness shall be agreed at the time of enquiry and order.

For widths up to and including 20 mm, it shall be measured at the centre of the product width. When ordering fine F or precision P thickness tolerances, it can be agreed that the permissible deviations from thickness shall be maintained over the whole width of the product. If edge camber is measured, this shall be done at a minimum distance of 3 laps from the end of the coil for cold-rolled narrow strip.

Key 1 out-of-squareness 2 square 3 side edge a Rolling direction. Figure 3 — Measurement of out-of-squareness With the product lying under its own mass on a flat surface, the maximum deviation from flatness is the maximum distance between the lower surface of the product and the flat horizontal surface.

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 1 mm or 2 mm long.

It may be placed on the product at any position and in any direction. Only the position of the points of contact of product and straight-edge shall be taken into account.

Unless otherwise agreed, the choice of the measurement method is left to the manufacturer. It presents the UK view on standards in Europe and at theinternational level.

It is incorporated by Royal Charter. RevisionsBritish Standards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments oreditions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while usingthis British Standard would inform the Secretary of the technical committeeresponsible, the identity of which can be found on the inside front cover.

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Except aspermitted under the Copyright, Designs and Patents Act no extract maybe reproduced, stored in a retrieval system or transmitted in any form or by anymeans — electronic, photocopying, recording or otherwise — without prior writtenpermission from BSI. BSI GroupHeadquarters This does not preclude the free use, in the course of implementing the standard,Chiswick High Road,of necessary details such as symbols, and size, type or grade designations.

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