: DIN 2391 ST44 Seamless precision steel pipes are custom seamless high-precision cold drawn pipe that comply with the DIN 2391 international standards, providing high precision with excellent mechanical properties and the finest surface finish. DIN 2391 ST44 tubes are generally used for constructing industrial, hydraulic systems, pneumatic equipment, engine parts, machinery and automotive. It is commonly equivalent to S275JR Seamless Steel Tube, EN 10305-1 E275 Seamless Precision Tube etc. Excellent weldability, machinability as well as outstanding work ability under high pressure conditions.

DIN 2391 ST 44 Seamless Precision Steel Tubes

Trusted manufacturers, suppliers and exporters of DIN 2391 ST 44 Seamless Precision Steel Tubes we serve clients across the spectrum of industries that demand for superior dimensional accuracy and assured performance in every single steel tube. Using the leading-edge cold drawing technique in their manufacturing process, ST 44 seamless tubes are ideally suited for high-quality requirements within hydraulic, pneumatic, automotive and industrial engineering. 

Produced using select grade raw materials and manufactured under rigorous quality control procedures, these ST 44 seamless steel tube range offer robust strength, smooth surface, constant wall thickness, and excellent dimensional preciseness. 

As a reliable DIN 2391 ST44 seamless tube manufacturer in the international arena, we provide precision tubes in wide ranges of sizes, walls, and delivery conditions as per client’s needs for individual projects.

What is DIN 2391 ST 44 Seamless Precision Steel Tube?

DIN 2391 is a German standard for seamless precision steel tubes for mechanical and engineering applications. ST 44 is a carbon steel grade with a good combination of strength, ductility and weldability.

Cold Drawn Seamless Precision Steel Tube ST44 is produced by a cold drawing process of precision that enhances dimensional accuracy, surface finish and mechanical properties compared with conventional seamless tubes.

These tubes are commonly selected for:

• Hydraulic cylinders
• Pneumatic cylinders
• Automotive parts
• Precision engineering components
• Structural machinery
• Industrial equipment
• Material handling systems
• Agricultural machinery

DIN 2391 precision steel tube products offer the combination of precise tolerances and reliable strength, making them ideal for demanding engineering applications.

Key Features of DIN 2391 ST 44 Seamless Precision Steel Tubes

• Superior Dimensional Accuracy: Manufactured with tight production controls to achieve precise outside diameter and wall thickness tolerances.
• Excellent Surface Finish: Cold drawing creates a smooth surface that reduces machining requirements and improves performance.
• High Mechanical Strength: The material offers excellent tensile strength and yield properties for demanding service conditions.
• Good Weldability: ST44 material can be welded using conventional welding techniques.
• Excellent Machinability: The steel grade allows efficient machining for precision components and assemblies.
• Consistent Quality: Every tube is subjected to strict inspection and testing procedures before dispatch.

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