BS EN 4700-005:2010 pdf download
BS EN 4700-005:2010 pdf download.Aerospace series- Steel and heat resisting alloys —Wrought products— Technical specification Part 005: Forging stock.
Product shall satisfy the requirements of the material standard and/or order and shall be free from irregularities prejudicial to the subsequent manufacture or use of this product
Notwithstanding previous acceptance complying with this material standard, any product that Is found, at a later stage, to contain such detects shall be raected.
Unless otherwise specified, the requirements in Tables I and 2 shall apply in conjunction with those of the relevant material standard. Table 1 relates to lines 1 to 29 (inclusive) of the material standard and Table 2 relates to lines 30 onwards in Much the subline format is also used. Lines 2 to 98 may also be opened In line 100 it the material standard details specific qualification requirements If a specific line number is not shown in Tables I and 2. the requirement is stated in the material standard and/or order.
The requi’ernents of the order and/or material standard shall over-flde the requwemecits of the tedunical specification.
6.2 Qualification requirements
Qualification requirements when invoked by the material standard and/or order are detailed in Tables 1 and 2. Unless otherwise agreed between the manufacturer and purchaser the qualification phase shall be run on the fIrst 3 batches, coming from at least 2 casts.
6.3 Release requirements
6.3.1 Release tests
Release testing shall be the responsibility of the manufacturer.
The purchaser reserves the flght to perform any of the inspections andlor tests required by the material standard and/or order.
The test samples shall be representative of the product.
When required on the order, the manufacturer shall inform the purchaser of the planned dates for extraction of samples and release testing in order that these operations may be witnessed
Tables 1 and 2 detail the requirements for each Ire of the material standard. Unless otherwise specifically requested by the purchaser, a particular inspection and/or test for release shall be carried out it corresponding acceptance criteria and/or values are staled In the applicable material standard, but see also in 6.3.5.
6.3.2 Retests
if any requirement is not met. retests shall be carried out under the following conditions unless otherwise slated in the material standard or order.
If the test procedure or test piece preparation is faulty, testing shall be re-applied at the original frequency after rectification of the original cause of failure, on a test sample located near the first one.
When failure cannot be attributed to faulty testing, or test piece preparation, further test samples shall be selected at twice the original frequency from the product, one of Much shall be that on 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. If one or more tests are unsatisfactory, the batch shall be:
rejected, or
— 100 % retested and the conforming products accepted, or
6.3.3 Rejection
Any fadure to meet the requirements of the material standard shall be cause for reectlon.
6.3.4 Special tests
Special tests may e required by the purchaser. In sucn cases, the nature of the test, method, frequency and techrwcal requirements shall be specified on the order or inspection schedule and shall be mutually agreed by the manufacturer and purchaser.
6.3.5 CapabIlity claus.
Where the capability clause is invoked arid 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 riot comply with the requirements, the batch shall be rejected.
6.3.6 StatIstical process control
Reduction in the extent of release testing, other than that defined in 6.3.4 above, may be negotiated with the
purchaser on the basis ot appropriate statistical process control andfor statistical 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:
manulacture?s name and address and, if appropriate, identification of the plant:
— order number:
material standard number:
delivery condition and metallurgical code of the product; quantity and dimensions;
– manufacturing and inspection schedule reference;
— cast and batch number:
— batch and/or test samples heat treatment conditions:
— results of the tests and retests if any.
6.4 Traceability
Each product shall be traceable to the cast, production batch andiot heat treatment batch at all stages of manufacture, testing and delivery.
