{"id":391,"date":"2025-12-16T12:57:40","date_gmt":"2025-12-16T07:27:40","guid":{"rendered":"https:\/\/www.rextonsteel.com\/blog\/?p=391"},"modified":"2025-12-31T13:32:20","modified_gmt":"2025-12-31T08:02:20","slug":"st52-seamless-pipe-dimensions-uses-stockist","status":"publish","type":"post","link":"https:\/\/www.rextonsteel.com\/blog\/st52-seamless-pipe-dimensions-uses-stockist\/","title":{"rendered":"ST52 Seamless Pipe: Dimensions, Uses & Stockist"},"content":{"rendered":"

ST52 Seamless Pipe: Dimensions, Uses & Stockist<\/b><\/h1>\n

The ST52 seamless pipe is a trusted material in many heavy-duty systems due to its strength, reliability, and high load-bearing capacity. These pipes are manufactured out of high-grade carbon steel pipe, which has a smooth, uniform structure with no welded joints, making them suitable for high pressure and temperature. All industries use these pipes for construction, machinery, oil transport, and hydraulic applications due to their durability and accuracy in size. Its toughness and resistance to wear allow it to handle demanding environments with ease. This blog covers ST52 pipe dimensions, DIN 2391 ST52 standard details, applications in key sectors, chemical makeup, welding and tolerances, and stock availability. In short, this blog explains ST52 grade basics, size tables, and uses in different industries. It also highlights welding, tolerances, and material composition for proper selection.<\/span><\/p>\n

What is ST52 Seamless Pipe?<\/b><\/h2>\n

The <\/span>ST52 seamless pipe<\/a><\/strong> is a high-strength, low-alloy structural steel pipe. It is primarily defined by the German standard DIN 1629\/EN 10297-1. The “seamless” manufacturing process means the pipe has no welded seam, which significantly raises its pressure-retaining capabilities and uniformity throughout the structure. One of the most outstanding features of this pipe is its mechanical properties, mainly a high tensile and yield strength in conjunction with adequate ductility. It also enables the pipe to withstand extremely high operational pressures and mechanical stress without deformation or failure. Its critical nature makes it particularly reliable for essential applications requiring safety and longevity.<\/span><\/p>\n

Dimension Table (DIN 2391)<\/b><\/h2>\n

The standard dimensions of an ST52 seamless pipe are specified according to DIN 2391, which covers seamless precision steel tubes. The standard provides for tight tolerances on the outside diameter (OD) and wall thickness, a factor highly critical in hydraulic cylinder applications. The following table provides common dimensional data.<\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n
Outside Diameter (OD) (mm)<\/b><\/td>\nWall Thickness (WT) (mm)<\/b><\/td>\nInside Diameter (ID) (mm)<\/b><\/td>\n<\/tr>\n
10<\/span><\/td>\n1<\/span><\/td>\n8<\/span><\/td>\n<\/tr>\n
20<\/span><\/td>\n2<\/span><\/td>\n16<\/span><\/td>\n<\/tr>\n
30<\/span><\/td>\n3<\/span><\/td>\n24<\/span><\/td>\n<\/tr>\n
50<\/span><\/td>\n5<\/span><\/td>\n40<\/span><\/td>\n<\/tr>\n
80<\/span><\/td>\n8<\/span><\/td>\n64<\/span><\/td>\n<\/tr>\n
100<\/span><\/td>\n10<\/span><\/td>\n80<\/span><\/td>\n<\/tr>\n
150<\/span><\/td>\n15<\/span><\/td>\n120<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Applications of ST52 Seamless Pipe<\/b><\/h2>\n

The exceptional strength and fatigue resistance of ST52 pipe make it indispensable in many heavy industries. Its capacity to work under extreme stress and pressure is essential due to its adaptability.<\/span><\/p>\n