BS EN 04800-007:2010 pdf download

BS EN 04800-007:2010 pdf download.Aerospace series- Titanium and titanium alloys Technical specification Part 007: Remelting stock.
3 Terms and definitions
Fer the purposes of this document, the terms and delinitions given in EN 4259 and the following apply.
3.1
melt
mass of homogeneous liquki metal from a single charge
3.2
remelt
solid metal resulting from a single melt
3.3
parent cast
cast of remelting stock to be used for the production of castings
3.4
remelting stock
metal supplied in cast or wrought form, the composition of which has been established by chemical analysis
4 WordIng oforder
The order shall dearly indicate:
quantities to be supplied. dales of delivery; material standard number;
delivery condition and metallurgical code of products:
cmensions and tolerances or reference to an appropriate dimensional standard; product des4gnabon, when required:
forwarding address:
nature and type of packing, If required:
definition and frequency of any special tests and their retest procedures, if required.
6.3.2 Retests
If the test procedure or test piece preparation is faulty, tesbng shall be re-applied at the original frequency alter rectification of the original cause of failure.
When failure cannot be attributed to faulty testing, or test piece preparation, further test 5amples shall be selected at twice the original frequency from the product, one of which shall be that on which the original results were obtained unless already withdrawn by the manufacturer after suitable identification of the cause of failure. If all retest results are satisfactory, the batch shall be accepted. It one or more tests are unsatisfactory. the batch shall be:
rejected; or
100% retested and the conforming products accepted: or
partially or fully re-heat treated it heat treatment can rectify the cause of the failure and tested as a completely new batch except for chemical composition. for which redetermination of hydrogen content is required. No product or test sample shall be re-heat treated more than twice.
6.3.3 RejectIon
Any failure to meet the requirements of the material standard shall be cause for relection.
6.3.4 Special tests
Special tests may be required by the purchaser. In such cases, the nature of the test. method, frequency and technical requirements shall be specified on the order or inspection schedule and shall be mutually agreed by the manufacturer and purchaser.
6.3.5 Capability clause
Where capability clause is invoked and where sufficient statistical evidence exists, the test need not be carried out (unless specifically requested by the purchaser).
However, this in no way reduces the obligations of the manufacturer to fulfil the requirements. If subsequent testing indicates that the product does not comply with the requirements, the batch shall be rejected.
If sufficient statistical evidence does not exist, the test shall be carried out at a frequency agreed between the manufacturer and the purchaser.
6.3,6 StatistIcal process control
Reduction In the extent of release testing, other Ihan that defined In 6.3.5 above. may be negotiated with the
purchaser on the basis of appropriate statistical process control andor statzstical data.
6.3.7 Inspection and test report
The manufacturer shall furnish, with each delivery, a report conforming to the requirements of EN 2078 stating the following:
manufacturer’s name and address and, If appropriate, identification of the plant; order number;
material standard number;
delivery condition and metallurgical code of the product.