SUPPLEMENTARY REQUIREMENTS
These requirements shall apply only when specified in the purchase order, in which event the specified tests shall be made by the manufacturer before shipment of the plates.
S1. Surface Requirement Bend tests
S1.1 the purpose of this test is to measure the cleanliness or ductility, or both, of the metal surface.
S1.2 two guided-or free-bend tests of sheet or plate material limited to Grades 1,2 and 3 shall be made. Each of these bends will place opposite surfaces of the sheet or plate material in tension.
S1.3 The bends arte to be made in accordance with Method E 190 or Method E 16, except that the welds mentioned in these standards are not required. The bend specimen may be of less than full material thickness; however, the outer surface of the specimen must be representative of the product at supplied.
S1.4 the bend radius will be such to provide minimum elongation of the outer fibers of the bent specimen as follows:
Grade 1—20% equivalent to 2T bend radius at 180° bend,
Grade 2—20% equivalent to 2T bend radius at 180° bend,
Grade 1—16% equivalent to 21/2T bend radius at 180° bend,
S1.5 Criteria for acceptance will be the absence of any cracking or surface separations(not originating at the edge of specimen).
The American Society for testing and Materials takes no position respecting the validity of any patent fights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, 100 Barr Harbor Drive, West Conshohocken, PA 19428.