JIS G JIS H JIS L JIS Z JIS B Consequently JIS is replaced with this Standard.
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JIS G JIS H JIS L JIS Z JIS B Consequently JIS is replaced with this Standard. This Standard. Attention is drawn to the possibility that some parts of this Standard may conflict with a patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the public which have technical properties.
The relevant Minister and the Japanese Industrial Standards Committee are not responsible for identifYing the patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the public which have the said. JSA All rights reserved. No parl of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, vvithout pennission in wriling from the publisher.
Por60ns given sidelines are the matters in which the contents of the original International Standard have been modified. A list of modifications with the explanations is given in annex 1 informative. ISO Steels for cold headi11g and cold extruding MOD 2 Normative references The standards listed in attached table 1 contain provisions which, through reference in this Standard, constitute provisions of this Standard.
The most recent editions of the standards including the amendments shall be applied. The process DA means a process wherein wire rods having been cold worked are annealed and further finished by cold working or a process wherein wire rods are finished by cold working after annealing. However, manufacturing processes other than given above may be selected by agreement between the purchaser and the supplier. However, in the case by processes other than process D and process DA, they shall be subjected to the agreement between the purchaser and the supplier.
Division of wire diameter mm 3 max. Over 3 to and incl. Remarks 1 For wires of 20 mm or over in wire diameter, the reduction of area shall be a value 5 lower than the value in table 2. For those of diameter 3 mm or less, the reduction of area is not specified. Reduction of area Informative Hard.
However, those of wires of 32 mm or over in wire diameter shall be as agreed upon between the purchaser and the supplier. Table 4 Permissible limits of mean depth of decarhurized layer unIt: mm Depth of ferrite decarburized layer 0.
Total depth of decarburized layer 0. Wire diameter 15 or under Over 15 to and incl. Note 4 The ovality means the difference between the maximum and the minimum wire diameters measured in the same cross-section.
Table 5 Tolerances on wire diameter and ovality Unit: mm Wire diameter ' Tolerances 0 The depth of flaws shall conform to table 6 for killed steel including aluminum-killed steen. However, in the case where a flaw depth in necessitated to be especially controlled, they shall conform to table 7 subject to the agreement between the purchaser and the supplier.
When the flaw depth is especially requested to be eontrolled for 15 mm max. For the tensile test, t No. Further, whether test piece of No. In that case, the carburized layer depth measured at four positions by equally dividing the circumference adopting the position of the maximum decarburized layer depth as an origin, and the mean value thereof shall be obtained.
The sample product shall be measured for surface flaw depth with a measuring device having an appropriate precision. Some of the items below, however, may be omitted, if agreed between the purchaser and the supplier. B inspection certificate 3.
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