Resistance: The ability to withstand higher resistance is another benefit of having no seam.The strength is possibly the most significant benefit of using seamless pipe. This means that the chance for a ‘weak’ seam is eliminated and therefore seamless pipe can typically withstand 20% more working pressure than welded ones of the same material grade and size. Strength: Seamless pipes have no seam.It is also regularly required in many high-pressure, high-corrosive environments, as well as for bearing, mechanical and structural circumstances. Seamless steel pipe is regularly used in the transportation of fluids such as water, natural gas, waste and air. This includes the oil and gas, refinery, petrochemical, chemical, fertilization, power and automotive industries. Seamless pipes are very versatile and can therefore be found in a wide range of sectors. This ensures extremely high quality and durability for our clients. Where necessary, Special Piping Materials only supply duplex and super duplex seamless pipe from NORSOK M650 approved manufacturers. To guarantee that seamless pipe meets certain standards, it has to be heat-treated in specific ways to ensure that the metallurgic properties are in accordance with the necessary requirements. This hollow pipe is then ‘extruded’ and forced through a die and mandrel in order to achieve the desired diameters of the inside and outside walls. This results in the creation of a hollow pipe. This is then ‘stretched’ and then pushed or pulled over a moulding form. Generally speaking, seamless pipe is made by raw steel first being cast into a more workable format – a hot solid billet. The method used is dependent on what diameter, or what ratio of the diameter to the thickness of the wall, is required by the application it is being put into. Seamless pipes are manufactured using a variety of different methods. Seamless pipes are thought to be able to withstand higher pressure, higher temperatures, higher mechanical stress and a corrosive atmosphere. The network of skilled manufactures we work with are experts in their fields which means we can be confident in the products which we supply and know we can rely on their quality and performance.Ī seamless pipe, as the name suggests, is a pipe without a seam or a weld joint. The relationships we have cultivated with some of the leading mills across the world mean that if we don’t have something in stock, we are able to source it quickly and organise professionally organise the shipping as well. Our extensive stock holdings mean that we are able to supply clients with products quickly and efficiently, wherever they are required. SPM warehouses around the globe also stock a wide selection of ‘semi-finished’ products such as part machined flanges. ![]() This range of products includes seamless pipe, round bar, forged fittings and welded pipes. We have one of the largest stockholdings in the market of high-specification and high-performing pipes, fittings and flanges. Special Piping Materials (SPM) is a specialist supplier of Duplex, Super Duplex and exotic alloy products.
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