The Astec Tubes have always been a renowned name in supplying and manufacturing Duplex Steel S31803 Pipe Fittings. We have been a part of this industry for years and serving our clients with superior quality products. We offer it in various shapes and product form like plate, sheet, seamless and welded tubes. These exhibit enormous strength even at very high temperatures. Due to this many industrial processes make use of this grade steel compression tube fittings. These fittings are exceptionally hard and give a sound grip while holding the fitting. These are known for excellent corrosion resistance properties even in the presence of acidic substances. These fittings are much harder than its counterparts. They have a high level of mechanical and tensile strength. These grades of stainless steel are the most durable tube fittings amongst all tube fittings available in the market. These standard specifications make it suitable for a wide range of applications in many industries.