This instruction is made by Younglee Metal Products Co.,Ltd, complied and implemented by quality department of its SAE Flange factory.
This instruction is intended to strengthen the quality management of flanges, making the quality inspection be processize, standardization, and improve the quality control level. Flanges should meet our factory inspection and testing standards, in addition to the implementation of the contract technical requirements. If there is a conflict between the requirements of the contract and this requirement, it shall perform the higher standard as required.
Bursting test of Younglee Metal Sae Flange
3.1 measuring tools: caliper, depth caliper, spectrum analyzer
3.1.1 Determine standards: the relevant domestic and foreign machinery production standards.
3.1.2Defect category definition:
Class A: the extremely important quality characteristics of the unit product does not meet the requirements, such as: mechanical properties, chemical composition，key size.
Class B: important quality characteristics of the unit product does not meet the requirements, such as: shape structure, deformation, standard, no specific size, coating
Class C: General quality characteristics of unit products do not meet the requirements, such as: appearance, color, scratches, packaging, transportation
3.2 Test items, standards, defects table (click to download pdf)
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