ST52 Seamless Circular Pipe Non-Alloy Steels with Special Quality Requirements
Material Specification
ST52 seamless circular pipes are crafted from non-alloy steel, providing a balance of strength and ductility. These pipes are renowned for their excellent mechanical properties suited to a variety of structural and mechanical applications. The seamless design ensures a uniform, flaw-free construction that's pivotal for high-pressure scenarios and critical applications.
Key Features
- High Strength and Toughness: Ideal for demanding environments.
- Seamless Structure: Enhanced integrity and performance under stress.
- Weldability: Excellent weldability properties for easier fabrication.
- Versatility: Suitable for mechanical, structural, and automotive applications.
Chemical Composition
The chemical composition of ST52 is critical for its performance. Below is a typical analysis:
| Element |
Content (%) |
| Carbon (C) |
0.20 max |
| Silicon (Si) |
0.55 max |
| Manganese (Mn) |
1.60 max |
| Phosphorus (P) |
0.045 max |
| Sulfur (S) |
0.045 max |
Mechanical Properties
The mechanical properties are pivotal for assessing the pipe's performance under various conditions:
| Property |
Value |
| Tensile Strength |
490 - 630 MPa |
| Yield Strength |
≥ 355 MPa |
| Elongation (% in 50 mm) |
≥ 22% |
| Impact Energy (ISO-V) |
27 J at -20°C |
Similar Standards and Steel Grades
The ST52 seamless pipe aligns with various international and national standards, making it interchangeable with several other grades. Similar grades include:
- ASTM: A519 Grade 1026
- EN: E355
- GOST: 20 or 20Mn
- JIS: STK490
- GB: Q345B
Applications
ST52 seamless circular pipes are extensively used across diverse industries due to their mechanical excellence and adaptability:
- Construction Industry: Used in structural frameworks and load-bearing applications.
- Mechanical Engineering: Employed in manufacturing parts like gears, shafts, and machinery segments.
- Automotive Industry: Utilized in steering components, suspension systems, and other critical automotive parts.
- Hydraulic Systems: Applies in hydraulic systems and cylinders due to its high-strength and corrosion resistance.
TORICH Group, an one-stop service provider of raw materials engaged in raw material production, R&D and
trade, has 30+ years of experience in the market, exported to 56 +countries, and won good reputation and
credibility among domestic and foreign customers.
The company's production plant covers an area of over 10,000 square meters, with an annual production
capacity of 50,000 tons of materials and a comprehensive trading and warehousing capacity of 100,000 tons, which can satisfy customers' personalized needs for raw materials in terms of diversity and timeliness.
The group holds shares in more than ten domestic production entities, whose main products include
seamless steel pipes ( carbon steel and stainless steel), welded pipes ( carbon steel and stainless steel), pipe fittings ( carbon steel and stainless steel), titanium (titanium tubes, titanium rods, titanium cakes, titanium plates, etc.), aluminum (aluminum tubes, aluminum rods, aluminum die casting, aluminum casting, CNC machining), and CNC deep processing of metal materials such as tubes, rods, and casting parts.
Over the past 30 years, the company has been gradually developing new technologies and materials to meet
the growing needs of customers and various diversified needs, exporting to more than 56 countries and still
increasing the number of exporting countries, aiming to help customers to solve the demand for raw materials, and to facilitate one-stop purchasing for customers.
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
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