Does this material need to be retested?
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The technical agreement states: “Material testing: The inspection items for stainless steel shall include at least chemical composition, mechanical properties, metallographic analysis, and surface quality inspection.” ” I was wondering, if it is stated like this in the agreement, is it necessary to conduct another inspection, or is it sufficient to include it in the material list?
As you put it, a reinspection is required; parameters such as composition and mechanical properties can be indicated in the quality certificate. However, for other items, metallographic analysis is required, and the surface quality needs to be rechecked. It can also be handled flexibly.
This was definitely required by the design party; if no quote has been provided yet, it is advisable to send a clarification letter asking the design party for a response, once the bid is successful. Then handle it flexibly.
I’ve learned it! It depends on the requirements of the supervisor and the owner.
If there are no special requirements, order according to the material standards.
It is not clear from your text that a retest is required; if it has already been done in the quality certificate, no further retest is needed.
The technical agreement stipulates that re-inspection is required; it mainly depends on the owner’s requirements
Depending on the party A’s level of control over material quality, random inspections can be carried out; however, if the parameters of the metal material detected match those specified in the material sheet, the cost of such testing must be borne by the client.
"The phrase “stainless steel inspection items” does not imply re-inspection. If the inspection items specified in the warranty certificate are all met, it is considered complete. If it is marked as rejected in the warranty certificate, just retest and complete it.
But if the items mentioned in the original poster’s paragraph are restricted to those requiring retesting, then the items posted by the original poster should be retested. For example: Re-inspection is as follows: “Material testing: The inspection items for stainless steel include at least chemical composition, mechanical properties, metallographic analysis, and surface quality inspection.”
Check the specific installation requirements and relevant standards; for fittings used on pressure pipelines such as SH3501, the construction party is required to conduct re-inspection – a material certificate alone is not sufficient