Standard for inspection of stainless steel pipe fittings tee

　　Stainless steel pipe fittings belong to one kind of pipe fittings. They are made of stainless steel material. They include stainless steel elbows, stainless steel tees, stainless steel tees, stainless steel cross, stainless steel pipe with different diameters and stainless steel pipe caps. According to the connection method, they can be divided into socket stainless steel pipe fittings, threaded stainless steel pipe fittings, flanged stainless steel pipe fittings and Stainless steel tees are used for turning parts; flanges are used for connecting pipes to pipes; stainless steel tee pipes are used for converging places of three pipes; stainless steel tee pipes are used for converging places of four pipes; stainless steel differential pipes are used for connecting places of two pipes with different diameters. Main stainless steel materials: 304, 304L, 316 |, 316L.
　　The inspection standards for BW Straight Butt Welding Reducing Stainless Steel Tee are as follows:
　　EJ/T 403-1999 Technical Specifications for Large-caliber Arc Welded Stainless Steel Coiled Pipe and Pipe Fittings in Primary Circuit System of PWR Nuclear Power Plant.
　　NF E29-600-2009 Pipeline Project. Stainless steel pipe fittings tee with thread consistent with ISO 7-1.
　　Key BS 4677-1984 Specification for Arc Welding of Austenitic Rust Steel Pipe Parts for Transport of Liquid.
　　DIN 11851-2013 Stainless steel pipe fittings tee for food and chemical industries. Expansion and welding of threaded pipe joints.
　　Stainless steel pipe fittings can be divided into stainless steel tee, stainless steel flange, stainless steel head, stainless steel elbow, stainless steel pipe cap, stainless steel head, etc.

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