While grade 316 has a molybdenum content of between 2% and 3%, grade 317 is an alloy with an Mb of over 3%. Therefore, it is safe to state that marine grade alloy 316 has been upgraded. In turn, giving rise to stainless steel 317L seamless tubing. The alloy also contains nickel and chromium in addition to molybdenum. The ASTM A312 TP 317 Rectangular Pipe thus has greater corrosion resistance qualities.
Acetic acid, formic acid, citric acid, sulfurous acid, and tartaric acid are only a few of the acidic solutions to which the material exhibits a higher level of resistance. These acids are utilized in a variety of industries, including textile, pharmaceutical, food, and beverage. The 317L Stainless Steel Tubing functions well in these circumstances, making it a valuable asset in these enterprises. This alloy has only a little amount of carbon. It follows that the DIN 1.4438 schedule 40 pipe displays resistance to sensitization during welding operations.
The 317L Stainless Steel tubing offers various advantages because of its low carbon content, including stronger creep strength, & higher stress to rupture. In reality, the SS 317L tubing tensile strength increases as a result of the increased concentrations of elements like Cr, Mb, and Ni present in it. The difference between 317 & 317L SS pipes is that latter has an even lower concentration of carbon.
Applications of 317L SS Tubes
317L stainless steel tubes are suitable for vertical organizations for boiler units, the construction industry, heat exchangers units, chemical and fertilizer production, surgical instruments, and power generation plants. Some other applications include chillers & cooling systems, engineering oil and gas, and shipbuilding, for onshore and offshore industries. LNG, fasteners, desalination, aerospace, automobiles, Cross Country Pipe Line for the sugar industry, Gas & Water are some extra uses.