What Are The Technical Requirements For Stainless Steel Pipe Fittings?

Various standards or technical agreements have clear provisions on the technical requirements of various types of stainless steel pipe fittings, and different working conditions and uses have different technical requirements for steel symbols. Let's take a look at the technical requirements of Stainless Steel Weld Fittings, as follows:

1. Various specifications. The cross-sectional shape, size, allowable deviation, theoretical review, etc. of stainless steel pipe fittings should be specified. Pipe specifications are usually expressed in source DxS, such as 50mmx2Mm, indicating that the outer diameter of the stainless steel pipe fitting is 50Mm and the wall thickness is 2Mm. Dimensional accuracy includes wall thickness accuracy, outer diameter accuracy and ovality.

2. Surface quality requirements. The inner and outer surface conditions of stainless steel pipe fittings and the allowable degree of surface defects are specified.

3. Chemical properties. The chemical composition, phosphorus and sulfur content of steel and test methods are specified.

4. Organization and physical properties: The metallographic structure, mechanical properties and process properties of the steel room are specified.

5. Inspection standards. The inspection items, sampling locations, sample shapes and sizes, test conditions and response methods are specified. In the production of stainless steel pipe fittings, in addition to routine testing items, some process performance tests are sometimes required.