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DIN2391 ST52 Seamless Carbon Steel Pipe Sizes

DIN2391 ST52 Seamless Carbon Steel Pipe Sizes

DIN2391 ST52 seamless carbon steel pipes are composed of carbon, silicon, manganese, phosphorus, and sulfur. These pipes are very strong, corrosion-resistant, and have good mechanical properties. They are normally used in oil and gas refineries, food processing, the chemical industry, boiler systems, dairy and fluid pipelines, hydraulic systems, and other fields.
Outer Diameter: 4mm-120mm
Wall Thickness: 0.5mm-12mm
Length: Can be customized upon request
Steel Grade:ST52

Product Introduction

Products Description

 

DIN2391 ST52 Seamless Carbon Steel Pipe 

 

Why Choose DIN2391 ST52 Seamless Carbon Steel Pipe?

 

  • ST52 is a high-strength, low-alloy steel with a minimum yielding strength of 355 MPa. For emergencies with high demand for mechanical strength and resistance to change in evacuation, examples include equipment frames, liquid pump systems, and heavy-duty construction equipment.
  • ST52 has outstanding machinability, easy machining, drilling, car cutting, metal cutting, emergency fitting, liquid punching, cylinder forming, machine parts, etc., precision zero parts.
  • In the production process, the light on the inside of the channel is not clear, the light is not available, and the liquid is reduced to the maximum extent.

 

Applications of DIN2391 ST52 Seamless Carbon Steel Pipe

 

  • Hydraulic and pneumatic cylinders: cylinder barrels
  • Automotive engineering: drive shafts, axles, and suspension systems
  • Construction and heavy machinery: load-bearing structures, booms, and frames
  • Mechanical and structural engineering: precision equipment, fixtures, and assemblies
  • Agricultural equipment: cylinders, rollers, and frame components

 

Chemical Composition

Element Carbon (C) Silicon (Si) Manganese (Mn) Phosphorus (P) Sulfur (S)
Composition (%) ≤ 0.22 ≤ 0.55 ≤ 1.60 ≤ 0.040 ≤ 0.050

 

Mechanical Properties 

Property Yield Strength
Tensile Strength
Elongation Hardness
Value ≥ 355 MPa 600 – 800 MPa ≥ 22% ≤ 180 HB

 

 

Possible Alternative Grades

 

  • SAE 1026 (ASTM A513 Type 5) – U.S. equivalent used in DOM tubing; similar mechanical properties
  • ASTM A519 1026 – Seamless mechanical tubing for pressure and strength applications
  • EN 10305-1 E355 – European precision steel equivalent with tighter tolerances
  • ASTM A106 Grade B – For pressure pipe applications but lower in mechanical strength
  • ST44 or ST37 (DIN 2391) – For lighter-duty applications with lower strength requirements


Packaging


Once the pipes have passed all inspections and tests, they are ready for packaging. They are usually packaged in bales wrapped in plastic. The pipes can be bundled and ready for delivery according to customer requirements, ensuring that the pipes are protected during transportation and prevent surface damage.

 

 

Products Show

 

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