ST52 Carbon Steel Pipe Distributor in India
Looking for strong, reliable, and high-performance steel tubes? ASC LLP is one of the leading suppliers of ST52 Seamless Tubes in India and across the globe. We offer top-quality ST52 Steel Tube solutions suitable for multiple industries, including engineering, construction, manufacturing, and automotive.
We are a trusted EN 1.0570 Precision Steel Tube supplier in Mumbai, known for supplying durable and cost-effective tubing products like ST 52.3 Steel Welded Tube, ST52 Hot Finished Seamless Tubes, and ST52.3 Steel Cold Finished Tube.
What Are ST52 Seamless Tubes?
ST52 Seamless Tubes are low alloy, high tensile tubes made from DIN 1.0570 carbon steel. These tubes offer excellent strength, impact resistance, and weldability. They are commonly used in structural and mechanical applications that require durability and precision.
The material is known as ST52 under DIN standards and EN 1.0570 under European norms. It is similar to ASTM A513 or ASTM A106 in its application and properties.

Features of ST52 Seamless Tubes
- High tensile strength
- Excellent weldability
- Great machinability
- High load-bearing capacity
- Rust-resistant (with surface treatment)
- Uniform surface finish
Whether you need ST52.3 Steel Cold Finished Tube for precision machining or ST 52.3 Steel Welded Tube for structural applications, we supply them all.
ST52 Seamless Tube Grades and Variants
At ASC LLP, we stock and supply all forms of ST52 Tubes:
- ST52 Hot Finished Seamless Tubes: Ideal for high-temperature applications with consistent wall thickness.
- ST52.3 Steel Cold Finished Tube: Used in applications needing tight dimensional tolerances and surface smoothness.
- ST 52.3 Steel Welded Tube: A more economical version for less critical applications, still offering great performance.
- DIN 1.0570 Seamless Steel Tubes: Designed for use in pressure vessels and mechanical systems.


Schedule and Size Chart for ST52 Seamless Tubes
Schedule | Nominal Pipe Size (inches) | Outside Diameter (mm) | Wall Thickness (mm) | Approx. Weight (kg/m) |
SCH 20 | 1″ | 33.4 | 2.77 | 2.37 |
SCH 40 | 2″ | 60.3 | 3.91 | 5.44 |
SCH 60 | 3″ | 88.9 | 5.49 | 11.09 |
SCH 80 | 4″ | 114.3 | 6.02 | 16.07 |
SCH 120 | 6″ | 168.3 | 9.27 | 35.73 |
SCH 160 | 8″ | 219.1 | 12.7 | 65.77 |
SCH XXS | 10″ | 273.0 | 18.3 | 113.14 |
Specifications Chart for ST52 CS Tubes
Standard | Description |
Grade | ST52, ST52.3, DIN 1.0570, EN 1.0570 |
Standards | DIN 2391, DIN 1629, EN 10305, EN 10210 |
Manufacturing | Seamless / Cold Drawn / Hot Finished |
Size Range | 10 mm OD to 500 mm OD |
Wall Thickness | 1 mm to 40 mm |
Length | Up to 12 meters or custom cut |
End Finishing | Plain, Beveled, Threaded |
Surface Finish | Black, Bright, Pickled, Oiled |
Heat Treatment | Annealed, Normalized, Stress Relieved |
Mechanical Properties of CS ST52 Tubes
Property | Value |
Tensile Strength | 600 – 750 MPa |
Yield Strength | ≥ 355 MPa |
Elongation (L=5D) | ≥ 21% |
Hardness (Brinell) | ≤ 180 HB |
Impact Resistance | High (Charpy V-notch at -20°C) |
Modulus of Elasticity | ~210 GPa |
Chemical Composition of DIN 1.0570 ST52 Steel
Element | Content (%) |
Carbon (C) | ≤ 0.22 |
Manganese (Mn) | ≤ 1.60 |
Phosphorus (P) | ≤ 0.040 |
Sulfur (S) | ≤ 0.040 |
Silicon (Si) | ≤ 0.55 |
Nitrogen (N) | ≤ 0.009 |
Copper (Cu) | ≤ 0.55 |
Physical Properties of ST52 Seamless Tubes
Property | Value |
Density | 7.85 g/cm³ |
Melting Point | ~1420–1460 °C |
Thermal Conductivity | ~51.9 W/m·K |
Electrical Resistivity | ~0.15 µΩ·m at 20°C |
Specific Heat Capacity | ~470 J/kg·K |
Thermal Expansion | 11.6 × 10⁻⁶ /K |
Applications of Carbon ST52 Steel Tubes
Thanks to their superior mechanical and chemical properties, ST52 Steel Tubes are widely used in:
- Hydraulic systems
- Mechanical engineering
- Structural tubing
- Automotive chassis and parts
- Oil & gas pipelines
- Machine building
- Agricultural equipment
From heavy machinery to automotive frames, ST52 Seamless Tubes are trusted for their strength and performance.
Why Choose ASC LLP as Your ST52 Tube Supplier?
At Amardeep Steel Centre LLP, we are committed to quality, service, and on-time delivery. Here’s what sets us apart as a leading ST52 Carbon Steel Pipe distributor in India:
- ISO-certified manufacturing & testing facilities
- Large inventory of ready-to-ship ST52 tubes
- Competitive pricing without compromising on quality
- Custom sizes, cut-to-length, and surface treatments
- Global supply network and fast logistics
- Trusted ST 52 Tubes Supplier for decades
We serve clients across industries in India, the Middle East, Europe, and Southeast Asia.
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 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.