Long-necked butt welding flanges are common dedicated connections used in industries such as energy, petroleum and petrochemicals. They are commonly found in complex piping systems that serve multi-storey buildings and refineries. But why are they considered the perfect pressure vessel connection for these piping systems? Here are some of the reasons: Example of a long…
Carbon Steel: – ASTM A105, ASTM A350 LF1/2, ASTM A181 Alloy Steel: – ASTM A182F1 /F2 /F5 /F7 /F9 /F11 /F12 /F22 Stainless Steel: – ASTM A182F6 /F304 /F304L /F316 /F316L/ F321/F347/F348 Duplex Steel S31803 / S32205 Super Duplex Steel S32750 S32760 ASME B16.5 Flanges The ASME B16.5 standard covers NPS 1/2 through NPS 24…
Carbon Steel Flange: ASTM A 105 Stainless Steel Flange: ASTM A 182 Size: 1/2”-60” (DN15-DN3000) Pressure class: Class150-Class2500 Facing: RF/ FM/ M/ T G/ RF / FF / RTJ ASTM A105 & A182 Material Can Produce Flanges of Types ASTM A105 & A182 Material Can Produce Flanges : Threaded Flanges,Welding Neck Flanges ,Lap Joint…
Steel Pipe Elbow, tee, reducer, head, cap, the materials are; carbon steel, stainless steel, alloy steel, special alloy steel, duplex stainless steel, etc.; In the pipeline system, the elbow is a pipe fitting that changes the direction of the pipeline. According to the angle, there are 45° elbow and 90° elbow and 180° elbow. In…
T91 alloy tube, T91 alloy tube is a new martensitic heat-resistant steel developed by the National Like Tree Ridge Laboratory and the Metallurgical Materials Laboratory of the American Combustion Engineering Company. It is based on 9Cr1MoV steel to reduce the carbon content, strictly limit the content of sulfur and phosphorus, add a small amount of…
Due to the good high temperature comprehensive performance of P91 steel, it has been widely used in the main steam pipeline of Large Power Stations in China in the past ten years. This paper describes the welding characteristics, welding process, welding quality inspection, welding quality monitoring and development trend of P91 pipeline. In the construction…