316 stainless steel, 18Cr-12Ni-2.5Mo Due to the addition of Mo, its corrosion resistance, atmospheric corrosion resistance and high temperature strength are particularly good, and it can be used under harsh conditions; excellent work hardening (non-magnetic). Equipment used in seawater, chemical, dye, papermaking, oxalic acid, fertilizer and other production equipment; photography, food industry, coastal facilities, ropes, CD rods, bolts, nuts. Chemical composition of 316 stainless steel: C≤0.08, Si≤1.00, Mn≤2.00, P≤0.035, S≤0.03, Ni:10.0-14.0, Cr:16.0-18.5, Mo:2.0-3.0. Mechanical properties of 316 stainless steel: tensile strength (Mpa) 620 MIN, yield strength (Mpa) 310 MIN, elongation (%) 30 MIN, area reduction (%) 40 MIN, density of 316 stainless steel 8.03 g/cm3, this value is generally used for austenitic stainless steel.
The 8-shaped blind plate is a pipe fitting, which is mainly used for easy maintenance. You can know its specific shape by painting the upper part of the "8" black. It is half a blind plate and half an iron ring. It is often used in pipeline flanges that need to change the process. The main materials are carbon steel, stainless steel, and alloys. It can be selected according to the pipeline pressure level and pipeline medium. It is usually used on pipelines with larger diameters. Usually, one end of the flange is used to occupy the spacing to keep the pipeline unobstructed. When necessary, it is replaced with a blind plate of the same thickness at the other end to cut off the pipeline. Avoid forced expansion of the pipeline due to temporary replacement of other blind plates, affecting the entire system.