ST52 Seamless Pipe Manufacturer, Supplier & Stockist
What is ST52 Seamless Pipe?
ST52 Seamless Pipe is a low-carbon manganese steel pipe manufactured without welded joints to provide high strength, improved toughness, and better pressure resistance. Produced according to DIN 2391 ST52 specification, these pipes are commonly used in hydraulic cylinders, structural engineering, industrial machinery, automotive systems, and high-pressure mechanical applications.
Key benefits include:
- Excellent tensile strength
- Superior dimensional accuracy
- High pressure resistance
- Good weldability and machinability
- Smooth internal and external finish
- Suitable for precision engineering applications
High-Quality DIN 2391 ST52 Seamless Pipe for Industrial Applications
ST52 Seamless Pipe is widely used across industries that require superior mechanical strength, excellent dimensional accuracy, and dependable pressure handling performance. Manufactured using premium carbon steel grades, these pipes are designed to deliver consistent quality for hydraulic systems, structural applications, mechanical engineering, oil and gas sectors, and heavy industrial environments.
We supply and manufacture high-performance ST52 Seamless Pipe products that comply with international quality standards and customer-specific requirements. Our range includes DIN 2391 ST52 Pipe, cold drawn seamless pipes, precision tubes, and welded pipe solutions available in multiple sizes and wall thicknesses.
As a trusted ST52 seamless pipe supplier and ST52 pipe stockist, we focus on delivering reliable materials with complete testing documentation, dimensional accuracy, and global shipping support.
What is DIN 2391 ST52 Pipe?
DIN 2391 ST52 Pipe refers to precision seamless steel tubes manufactured according to German DIN standards. These pipes are known for excellent mechanical properties and dimensional tolerances.
The DIN 2391 standard primarily focuses on seamless precision steel tubes intended for mechanical and hydraulic uses where consistent performance is essential.
Compared to conventional carbon steel tubing, DIN 2391 ST52 Pipes Manufacturer products offer:
- Better surface quality
- Tighter dimensional tolerances
- Improved strength-to-weight ratio
- Enhanced resistance to operational stress

ST52 Cold Drawn Seamless Pipe
ST52 cold drawn seamless pipe is manufactured using controlled cold drawing techniques to improve dimensional precision and surface finish.
Benefits of Cold Drawn ST52 Pipes
- Enhanced dimensional consistency
- Improved mechanical performance
- Better internal cleanliness
- Reduced machining requirements
- Superior surface appearance
These pipes are widely selected for hydraulic cylinders, automotive components, and precision machinery.
ST 52.3 Carbon Steel Welded Pipes
For applications requiring economical fabrication with dependable performance, ST 52.3 Carbon Steel Welded Pipes provide an effective solution.
Applications include:
- Structural fabrication
- Industrial piping systems
- Engineering construction
- Equipment manufacturing
Welded pipes provide cost efficiency while maintaining good mechanical characteristics.


DIN 2391 ST52 Specification
| Specification | Details |
| Standard | DIN 2391 |
| Grade | ST52 |
| Material Type | Carbon Steel |
| Pipe Type | Seamless / Welded |
| Manufacturing Process | Cold Drawn / Hot Finished |
| Outer Diameter | 4 mm – 420 mm |
| Wall Thickness | 0.5 mm – 50 mm |
| Length | Single Random, Double Random, Custom |
| End Type | Plain End, Beveled End |
| Form | Round, Hydraulic Tubes |
ST52 Chemical Composition
The performance of st52 carbon steel pipe is achieved through controlled alloy chemistry.
| Element | Composition (%) |
| Carbon (C) | ≤ 0.22 |
| Silicon (Si) | ≤ 0.55 |
| Manganese (Mn) | 1.60 Max |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
Mechanical Properties of ST52 Seamless Steel Pipe
| Property | Value |
| Tensile Strength | 490–630 MPa |
| Yield Strength | ≥ 355 MPa |
| Elongation | ≥ 22% |
| Hardness | Approx. 160–180 HB |
These mechanical properties make st52 seamless steel pipe suitable for demanding industrial applications.
ST52 Pipe Dimensions Chart
| Outer Diameter (mm) | Wall Thickness (mm) |
| 10 | 1–3 |
| 20 | 1–5 |
| 40 | 2–8 |
| 60 | 3–10 |
| 100 | 4–15 |
| 200 | 6–20 |
| 300 | 8–25 |
ST52 Physical Properties Chart
| Property | Value |
| Density | 7.85 g/cm³ |
| Melting Point | ~1420–1460 °C |
| Thermal Conductivity | 45 W/m·K (at 20°C) |
| Electrical Conductivity | ~10% IACS |
| Specific Heat Capacity | 470 J/kg·K |
| Magnetic Properties | Ferromagnetic |
Applications of ST52 Seamless Pipe
Due to their strength and precision, ST52 pipes are used in:
- Hydraulic systems
- Oil and gas operations
- Automotive manufacturing
- Construction projects
- Heat exchangers
- Mechanical engineering
- Heavy industrial equipment
- Power generation plants
- Process industries
- Infrastructure development
Why Choose Us as Your ST52 Seamless Pipe Supplier?
Selecting the right supplier directly impacts project performance and long-term reliability.
We support customers with:
- Wide inventory availability
Complete material traceability
Fast global dispatch
Third-party inspection support
Custom cutting and sizing
Competitive pricing
Technical assistance for material selection
As an experienced ST52 seamless pipe supplier and st52 pipe stockist, we deliver products that meet demanding industrial standards.
Request a quote today for premium quality ST52 Seamless Pipe with complete material certification, fast delivery schedules, and technical support for industrial and engineering applications.
Global Reach
Amardeep Steel Centre boasts a robust global presence, committed to delivering unparalleled service and quality to clients around the world. Our dedication to prompt delivery and exceptional customer care sets us apart in the industry. Major corporations across the USA, Europe, Asia, and other regions place their trust in our high-quality ST52 Seamless Pipes. This widespread trust underscores our reputation for reliability and excellence. By consistently meeting and exceeding the expectations of our international clientele, we continue to solidify our position as a leader in the global steel market.

Countries We Export To
UNITED STATES, EUROPE, UK, UAE, SAUDI ARABIA, OMAN, KUWAIT, JORDAN, QATAR, INDONESIA, MALAYSIA, BRAZIL, SPAIN, ITALY, FRANCE, GERMANY, BAHRAIN, SRI LANKA, AZERBAIJAN, AUSTRALIA, AUSTRIA, PHILIPPINES, TURKEY, RUSSIA, IRAN, IRAQ, CANADA, KOREA, JAPAN, YEMEN, FINLAND, ZIMBABWE, HUNGARY, PORTUGAL, VIETNAM, MOROCCO, THAILAND, SOUTH AFRICA, MEXICO, SINGAPORE, GREECE, KUWAIT, POLAND, NEW ZEALAND, SWEDEN, SWITZERLAND, BELGIUM, BHUTAN, BANGLADESH, TAIWAN, ROMANIA, CAMBODIA, KAZAKHSTAN, AFGHANISTAN.

