ST52 Welded Tubes | ST52 Steel Tube Supplier & Exporter
Looking for high-quality ST52 welded tubes at the best price? You’re at the right place! ASC LLP is a trusted ST 52 Tubes Supplier in India and a leading ST52 Tubes Exporter to various countries. We supply and export premium quality ST52 Steel Tube, known for its high strength, excellent weldability, and wide industrial use.
We offer a wide range of products, including DIN 17100 ST 52.3 Welded Tube, DIN 2391 ST52 Carbon Steel Tubes, and ST52 S355 Annealed Tube, customized as per your requirements.
What Are ST52 Welded Tubes?
ST52 welded tubes are carbon steel tubes made by welding flat steel plates or coils into a round shape. These tubes are made from ST52 grade steel, which is known for its high strength and good impact resistance. ST52 steel belongs to the DIN 17100 standard and is widely used in construction, mechanical engineering, automotive, and general fabrication industries.
Key Features of ST52 Welded Tubes:
- High tensile strength and toughness
- Excellent weldability and formability
- Good corrosion resistance (with coating)
- Cost-effective and durable
- Suitable for both low and high-temperature applications
Grades and Types We Offer
1. DIN 17100 ST 52.3 Welded Tube: This grade is the most commonly used under the DIN standard. It offers high yield strength and good machinability. ST52.3 is ideal for structural applications.
2. ST52 S355 Annealed Tube: Annealed ST52 tubes are heat-treated to make them softer and more ductile. These are perfect for applications requiring easy bending and forming.
3. DIN 2391 ST52 Carbon Steel Tubes: These are precision tubes with tight dimensional tolerances and excellent surface finish. Used mainly in hydraulic and pneumatic applications.
4. ST 52.3 Steel Welded Tube: These tubes are made for high-performance uses in engineering and manufacturing. ST 52.3 shows better strength than other carbon steel grades.
ST 52 Tubes Supplier in India – ASC LLP
As a leading ST 52 Tubes Supplier in India, ASC LLP provides tubes that meet global quality standards. We are known for:
- Wide size range availability
- On-time delivery
- Competitive pricing
- Mill test certificates
- Third-party inspection on request
- Custom finishing and packaging
Schedule and Size Chart for ST52 Welded Tubes
| Schedule | Nominal Pipe Size (NPS) | Outer Diameter (OD) | Wall Thickness (WT) | Approx Weight (kg/m) |
| SCH 10 | 1″ | 33.4 mm | 2.77 mm | 2.53 |
| SCH 20 | 2″ | 60.3 mm | 3.91 mm | 5.52 |
| SCH 40 | 3″ | 88.9 mm | 5.49 mm | 11.3 |
| SCH 80 | 4″ | 114.3 mm | 8.56 mm | 21.95 |
| SCH 120 | 6″ | 168.3 mm | 11.13 mm | 43.39 |
| SCH 160 | 8″ | 219.1 mm | 12.7 mm | 60.28 |
| SCH XXS | 10″ | 273.0 mm | 25.4 mm | 123.3 |
Specifications Chart for ST52 Welded Tubes
| Standard | Specification |
| Product Name | ST52 Welded Tubes |
| Material Grade | ST52 / ST 52.3 / ST52 S355 |
| Manufacturing Process | Welded / ERW / EFW / HFIW / Annealed |
| Applicable Standards | DIN 17100, DIN 2391, EN 10305, ISO, ASTM |
| Outer Diameter | 13.5 mm to 355.6 mm |
| Wall Thickness | 1.8 mm to 12.5 mm |
| Length | Single Random / Double Random / Custom Cut |
| Surface Finish | Black, Galvanized, Painted, Pickled & Oiled |
| End Finish | Plain / Beveled / Threaded |
| Tolerance | As per DIN 2391 or customer requirements |
Mechanical Properties Chart for DIN 17100 ST 52.3 Welded Tube
| Property | Value |
| Tensile Strength | 490 – 630 MPa |
| Yield Strength | ≥ 355 MPa |
| Elongation (%) | ≥ 21% |
| Hardness (HB) | ~180 HB (Brinell Hardness) |
| Impact Toughness | Excellent (Charpy Impact Tested) |
| Modulus of Elasticity | ~210 GPa |
| Poisson’s Ratio | ~0.3 |
Chemical Composition Chart for ST 52.3 Steel Welded Tube
| Element | Composition (%) |
| Carbon (C) | ≤ 0.22 |
| Manganese (Mn) | 1.60 max |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.040 |
| Silicon (Si) | ≤ 0.55 |
| Others | Trace Elements |
Physical Properties Chart for ST52 S355 Annealed Tube
| Property | Value |
| Density | 7.85 g/cm³ |
| Thermal Conductivity | 52 W/m·K @ 20°C |
| Specific Heat Capacity | 470 J/kg·K |
| Electrical Resistivity | 0.15 µΩ·m |
| Melting Point | ~1420–1460°C |
| Magnetic Properties | Ferromagnetic |
| Thermal Expansion Coefficient | ~11.7 ×10⁻⁶ /K (20–300°C) |
Applications of ST52 Steel Tube
ST52 welded tubes are versatile and used across several industries:
- Construction: Bridges, buildings, structural supports
- Automotive: Chassis, axles, frames
- Mechanical Engineering: Machinery parts, tools, hydraulics
- Oil & Gas: Pipeline systems
- Shipbuilding: Support structures and hydraulic tubing
- Railway: Coach body structures and equipment
Thanks to its strength and weldability, ST52 tube is a go-to choice for both static and dynamic loads.
Why Choose ST52 Welded Tubes?
- High Strength: ST52 tubes offer high yield and tensile strength, making them suitable for load-bearing and high-pressure systems.
- Good Weldability: Thanks to its low carbon content, ST52 can be easily welded using standard methods, including MIG, TIG, and arc welding.
- Durability: With proper surface treatment, ST52 welded tubes resist corrosion and rust, lasting for years even in tough environments.
- Cost-Efficient: Compared to seamless tubes, welded ST52 tubes are more affordable and available in large sizes with less material waste.
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 Welded Tubes. 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.
