AS 1566:1997 pdf – Copper and copper alloys-Rolled flat products

AS 1566:1997 pdf – Copper and copper alloys-Rolled flat products.
9.4 Bend test (applicable to sheet and strip in the rolled tempers) When tested in accordance with AS 2505.1. the test piece shall not show evidence of cracking at the external portion of the bend when bent at room temperature to the requirements of Table 4. Where possible, the test piece shall be cut with its major axis at right angles to the direction of rolling (transverse bend test). Where this is not possible. the test piece shall be cut with its major axis parallel to the direction of rolling (longitudinal bend test). See Figure 1 for examples of transverse and longitudinal bend test pieces.
Iloth surfaces of the test piece shall be tested.
NOTE: lithe width of the product is less than that specified for the bend test in AS 2505.1. a sample may be selected prior to the final processing of the product. provided that it is treated in the same way as the bulk material.
10 GRAIN SIZE When determined in accordance with the method in AS 1733,
microexamination of annealed tempers of sheet, strip and foil shall show complete
recrystallitation and the average grain size shall meet the requirements of Table 3.
11 ELECTRICAL RESISTIVITY (APPLICABLE TO Cl1000 ANI) C 12200) When required, the electrical resistivity shall be determined in accordance with a method that is not less accurate than the routine method specified in BS 5714.
When the hydrogen embrittlement test is required by contract or special agreement, the test shall not result in the cracking of the test piece when carried out as follows:
(a) Make longitudinal test pieces from samples selected in accordance with Clauses 9.1 and 9.4. Carefully round edges of test pieces or smooth longitudinally
(b) Expose test pieces to an atmosphere of hydrogen for 30 mm at 825°C to 875°C.
(c) Cool test pieces to room temperature.
(d) Bend test piece of length AB through an angle of 180° (see Figure 2). by steadily applying pressure or a succession of blows, at right angles to the length AC and flatten close until A assumes the position indicated by D.
(c) Examine the test piece for cracking.
13 MANUFACTURING TOLERANCES Manufacturing tolerances shall comply with the requirements of Tables 5 to 12 inclusive, as appropriate.
(b) Select and retest two samples from the original item that failed. If either of these samples fail, the original item is rejected.
(c) Reprocess the batch and retest in accordance with the requirements of this Standard.
14.3 Sheet, strip and foil Retest procedures are as follows:
(a) Select two further test samples from the failed hatch. Take one of these test samples from the item from which the original sample was taken, unless that item has been withdrawn by the manufacturer.
In the event the test pieces from both these additional samples pass, the batch represented by them shall be deemed to comply with this Standard. Should the test pieces from either of these additional samples fail, the batch represented by the test samples shall be deemed not to comply with this Standard.
(b) Reprocess the hatch and retest in accordance with the rcquiremcins of this Standard.