Is it reasonable for the client to require the manufacturer to provide a quality guarantee certificate for the raw materials for forged flat welding flanges?
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Is it reasonable for the client to require the manufacturer to provide a quality guarantee certificate for the raw materials for forged flat welding flanges?
Reasonable; otherwise, why would a material certificate be issued?
Of course. This isn’t difficult either; it’s a reasonable request
There are too many standards for flanges in China, and some have been standardized over the past few years. To determine whether it is reasonable or not, one should first look at the technical documents of both parties – the contract and the tender documents – to find out which standard is applied for purchasing flanges, whether it is SH HG or GB. Do these standards specify any requirements regarding the material? Special requests can be made. I was looking for GB; let’s take a look now.
This flange is delivered as a finished product. Generally provided: 1. Quality certificate for the flange (original or a copy provided by the distributor); manufacturing licenses are required for enterprises that produce flanges. 2. Quality certificate for the forging batch used in the flange (copy); no manufacturing licenses are required for enterprises that produce forgings
Check the delivery requirements for ASME standard fittings.
Could it be that the material is fake? Is it inconvenient to give it? It’s basically required for special equipment – are you making such products for the first time?