We want to learn the tolerances for Q235 flange products
Without learning the Q235 flange product tolerance, the self-considered flange product is absolutely not allowed to have a single character tolerance exists.Our technical colleagues found our understanding incorrect after training our colleagues in our office on Q235 flange product tolerance.Our technical colleagues gave us the knowledge of Q235 flange product tolerance according to the Ministry of chemical Industry standards.No negative tolerance means that the outer dimension of the orchid product, that is to say, the product thickness has no negative tolerance, but the inner diameter of flange products can have a positive and negative tolerance, for example, Q235 flange product inner diameter size is 500MM, the inner diameter of flange products can have + 3.2mm,-1.6mm. flange product thickness has a positive tolerance, is not allowed to have a negative tolerance.PL flange products are more common in the flange production standards of the Ministry of Chemical Industry, and our factory also produces and sells PL more flange products.We can just do it according to the national standards.Q235 PL flange product its thickness is its outer diameter size is in accordance with the national standards to implement can only be large, not small, that is, we say only positive tolerance, no negative tolerance.Our factory in the production of Q235 PL flange products to be in strict accordance with the requirements of the standard, if the factory workers to produce product outer diameter size after factory inspection department inspection colleagues found negative tolerance, so the product judgment as unqualified products, can not be unqualified production Q235 PL flange products shipped to the customer.If the inspector did not find the flange difference in time, the customer found that the outer diameter of the flange product had a negative tolerance, and the product size inspection failed.Then our factory will receive the customer letter is the claim.
