Do stainless steel bolts must be used for stainless steel flanges?
There are often many owners who force the contractor to rectify on the ground that stainless steel flange using carbon steel or alloy steel bolts will cause corrosion, but it is difficult to explain the numerous grievances of the contractor. But is it really hard to explain? Actually, it’s easy to explain. 1. Article 5.8.7 of GB50316-2000(2008) code for design of industrial metal pipelines: under the condition of severe cycle, bolts or double-headed studs for flange connection shall be made of alloy steel. Note: Under the condition of severe cycle (refers to the occasion where the internal stress of pipeline […]