ASME B18.18-2011 pdf download
ASME B18.18-2011 pdf download.Quality Assurance for Fasteners.
If the end user considers that the degree to which the characteristic(s) deviates from specified requirements will have no significant effect on the performance of the parts in their service application, the customer may authorize the deviation and release of the parts or materials for completion of production or for shipment as applicable.
NOTE: If the supplier is not the manufacturer, the supplier shall
come to an agreement with the manufacturer if option (a) or (C)
is selected by the supplier.
2.5.2 Purchaser’s Options. The purchaser shall come to an agreement with the supplier on one of the following options for the disposition of nonconforming lots or parts that have been found after receipt:
(a) they may be scrapped
(Ii) they may be 100% sorted and all nonconforming parts removed
(c) they may be reworked or reprocessed to correct the nonconforming characteristic(s)
(d) if the purchaser considers that the degree to which the characteristic(s) vary from specified requirements will have no significant effect on the performance of the parts in their service application, the purchaser may authorize release of the parts or materials for use and advise the supplier
(c) they all may be returned
2.5.3 Reinspection. All sorted and/or reworked parts shall be resubmitted for Jot sampling and inspeclion for the characteristic(s) found nonconforming and all other characteristics that would be affected by the repair or reprocessing operation(s) at a sample size that is two times the size of the original. If no parts in the sample inspected are found nonconforming, the material may reenter the production flow or may be approved for delivery or use as applicable.
2.6 Records
The supplier shall maintain records of inspections and tests as required by this plan. The records shall include the nature and number of observations made, number and type of deficiencies found, quantities of conforming and nonconforming parts, and any corrective action taken including any dispositions made in accordance with para. 2.5. Records shall be maintained for a minimum of 5 yr from the date of inspection unless otherwise agreed upon by the purchaser and the supplier. Copies of the records shall be provided to the purchaser when requested.
2.7 Applicable Characteristics
Attributes to be evaluated during final inspection are outlined in the appropriate category sections of this Standard (see Table 1 or 2 as applicable). Product standards that specify inspection attributes shall take precedence over those specified in this document.
5.2 Designation
When required, Category 3 shall be designated on purchase documents by specifying “Quality Assurance Provisions per Category 3 of ASME B18.18. are required” or another equivalent statement. Absence of such statement will default seller to Category 2.
5.3 Quality Management System
Producers of Category 3 fasteners shall have an independently accredited Quality Management System that complies with the requirements of an internationally accepted standard such as ISO 9001 or ISO/TS 16949.
5.4 Raw Material
5.4.1 General. Raw materials (rod, wire, or bar) shall be reviewed to determine that each coil or bundle has a mill identification and that each heat (batch, melt, cast, etc.) is accompanied by a mill certification of analysis or the equivalent. Additionally, a single sample shall be checked chemically, by an accredited laboratory, for each heat. The raw material and its accompanying mill certification shall be inspected prior to release for fabrication to verify that it conforms to the material requirements specified.
5.5 Final Inspection and Test
Final inspection shall be performed by an ISO/IEC 17025 accredited laboratory. The sample sizes in Table 3 shall be used unless the producer has in- process records (para. 2.2), in which case the sample sizes in Table 2 may be used.
Final inspection verifies that required process steps were performed and that Table I and Nonmandatory Appendix A, Table A-i features were inspected/tested. Data on Type I characteristics shall be provided when the purchaser requires a test report. Evidence of testing of Types II and III characteristics shall be provided upon request.
5.6 Upgrade Option for Resellers
A reseller may, at their own discretion, use this process to upgrade existing inventory from Category 2 to Category 3.
5.6.1 Raw Material Certification. The reseller shall verify that the raw material meets the requirements of the applicable product and/or material standards. This may be performed by verifying the data on the original steel mill certificate or the Material Test Report from the original fastener manufacturer.
