Stainless Steel Elbow Bending Performance

Bend is also one of the factors that affect the quality of stainless steel elbows. When we manufacture bends, in addition to the standard size requirements to control within the tolerance range, we also require users to select the corresponding bend according to the diameter of the bend pipe when using it. The Stainless Steel Weld Elbow manufacturer briefly introduces the bendability of stainless steel elbows.

The bendability of the pipe itself and the surface corrosion conditions may also affect the quality of stainless steel elbows. When working on site, the operator also needs to understand the material, processing performance and surface corrosion conditions of the processed pipe to make a judgment.

When bending, the outer arm wall of the inner layer of the pipe is thinned by tensile stress under the effect of external force distance M, and the inner side is thickened by compressive stress. The combined forces N1 and N2 change the cross section of the pipe. Based on this factor, the main reason for the deterioration of the quality of stainless steel elbows is RX and SX. Therefore, GBJ235-82 has made clear provisions for the RX value and the thinning amount of the outer side under various pressure levels. The purpose is to control the values ​​of RX and SX, so as to ensure the quality.