JIS G3466 STKR400 Structural Steel Pipe: Carbon Steel Square and Rectangular Tubes for General Structure
Introduction
JIS G3466 STKR400 is a standard specification for carbon steel square and rectangular tubes used in general structural applications. These tubes are known for their excellent mechanical properties and versatility, making them suitable for various construction and engineering projects.
Material
The material used in the production of STKR400 tubes is carbon steel, which provides a good balance of strength, ductility, and weldability. This makes it an ideal choice for structural applications where durability and performance are critical.
Specification
The specification outlines the requirements for the manufacturing and testing of the steel tubes, ensuring they meet the necessary standards for structural integrity and performance.
Key Features
- High Strength: STKR400 offers excellent tensile strength, making it suitable for load-bearing applications.
- Versatility: Available in various sizes and shapes, it can be used in a wide range of applications.
- Weldability: The carbon steel composition allows for easy welding, facilitating construction processes.
- Corrosion Resistance: While not inherently corrosion-resistant, appropriate coatings can enhance its durability in various environments.
Chemical Composition
| Element | Composition (%) |
| Carbon (C) | 0.20 - 0.25 |
| Manganese (Mn) | 0.30 - 0.60 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.025 |
| Silicon (Si) | ≤ 0.40 |
| Iron (Fe) | Balance |
Mechanical Properties
| Property | Value |
| Yield Strength (MPa) | ≥ 245 |
| Tensile Strength (MPa) | 400 - 510 |
| Elongation (%) | ≥ 20 |
| Hardness (HB) | ≤ 150 |
Steel Grade
The STKR400 grade is specifically designed for structural applications, providing a reliable option for engineers and architects in their designs.
Application
STKR400 tubes are widely used in various applications, including:
- Construction of buildings and bridges
- Manufacturing of furniture and fixtures
- Automotive and transportation components
- General engineering and fabrication projects
Possible Alternative Grades
While STKR400 is a popular choice, there are alternative grades that may be considered based on specific requirements:
- STKR50: A lower strength grade suitable for lighter applications.
- STKR60: Offers higher strength for more demanding structural needs.
- S235JR: A European equivalent that provides similar mechanical properties.
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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JIS G3466 STKR400 Structural Steel Pipe Carbon Steel Square And Rectangular Tubes For General Structure Images
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