JIS G3457 STPY400 Welded Steel Tube
ARC Welded Carbon Steel Pipes for General Purpose
Material
JIS G3457 STPY400 is a specification for welded carbon steel pipes designed for general-purpose applications. These pipes are primarily used in various industries due to their excellent mechanical properties and weldability.
Specification
The specification outlines the requirements for the manufacture of welded steel tubes, including dimensions, tolerances, and testing methods. The STPY400 grade is particularly noted for its strength and durability.
Key Features
- Weldability: Designed for easy welding, making it suitable for various applications.
- Strength: Offers high tensile strength and yield strength.
- Corrosion Resistance: Provides moderate resistance to corrosion, suitable for various environments.
- Versatility: Applicable in multiple industries, including construction, automotive, and manufacturing.
Chemical Composition
| Element | Composition (%) |
| Carbon (C) | 0.18 - 0.24 |
| Manganese (Mn) | 0.60 - 0.90 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
| Silicon (Si) | ≤ 0.40 |
| Iron (Fe) | Balance |
Mechanical Properties
| Property | Value |
| Yield Strength (MPa) | ≥ 245 |
| Tensile Strength (MPa) | ≥ 400 |
| Elongation (%) | ≥ 20 |
| Hardness (HB) | ≤ 160 |
Steel Grade
The STPY400 grade is recognized for its balance of strength and ductility, making it suitable for various applications where moderate strength is required.
Application
JIS G3457 STPY400 welded steel tubes are commonly used in:
- Construction and structural applications
- Automotive components
- Machinery and equipment manufacturing
- General piping systems
Possible Alternative Grades
While STPY400 is widely used, there are alternative grades that may be considered based on specific requirements:
- STPY410: Offers higher strength and is suitable for more demanding applications.
- STPY450: Provides enhanced mechanical properties for heavy-duty applications.
- ASTM A53: A common alternative in North America with similar applications.
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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