
ASTM A714 Gr.1 Gr.2 Gr.3 Gr.4 Alloy Steel Pipe: High-Strength Low-Alloy Seamless Steel Pipe for Construction Engineering
Introduction
ASTM A714 is a specification that covers high-strength low-alloy seamless steel pipes intended for use in construction engineering. These pipes are designed to provide excellent mechanical properties and corrosion resistance, making them suitable for various applications in structural and industrial settings.
Material
The ASTM A714 specification includes several grades of alloy steel pipes, specifically Gr.1, Gr.2, Gr.3, and Gr.4. Each grade has unique properties that make it suitable for different applications.
Specification
The ASTM A714 specification outlines the requirements for the chemical composition, mechanical properties, and manufacturing processes of the alloy steel pipes. These pipes are typically produced through seamless manufacturing processes, ensuring high strength and durability.
Key Features
- High Strength: Designed to withstand high pressure and stress.
- Low Alloy Content: Provides enhanced mechanical properties while maintaining good weldability.
- Seamless Construction: Reduces the risk of defects and increases reliability.
- Corrosion Resistance: Suitable for various environmental conditions.
Chemical Composition
Grade | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Silicon (Si) | Chromium (Cr) | Molybdenum (Mo) |
Gr.1 | 0.12 max | 0.30 - 0.60 | 0.035 max | 0.025 max | 0.15 - 0.40 | 0.40 - 0.60 | 0.10 - 0.20 |
Gr.2 | 0.15 max | 0.30 - 0.60 | 0.035 max | 0.025 max | 0.15 - 0.40 | 0.40 - 0.60 | 0.10 - 0.20 |
Gr.3 | 0.20 max | 0.30 - 0.60 | 0.035 max | 0.025 max | 0.15 - 0.40 | 0.40 - 0.60 | 0.10 - 0.20 |
Gr.4 | 0.25 max | 0.30 - 0.60 | 0.035 max | 0.025 max | 0.15 - 0.40 | 0.40 - 0.60 | 0.10 - 0.20 |
Mechanical Properties
Grade | Yield Strength (ksi) | Tensile Strength (ksi) | Elongation (%) | Hardness (HB) |
Gr.1 | 50 | 70 - 90 | 20 | 150 - 200 |
Gr.2 | 60 | 80 - 100 | 18 | 160 - 210 |
Gr.3 | 70 | 90 - 110 | 16 | 170 - 220 |
Gr.4 | 80 | 100 - 120 | 14 | 180 - 230 |
Steel Grade
The ASTM A714 specification includes four primary grades: Gr.1, Gr.2, Gr.3, and Gr.4. Each grade is designed for specific applications and has varying mechanical and chemical properties.
Application
ASTM A714 alloy steel pipes are widely used in:
- Construction engineering
- Structural applications
- Oil and gas pipelines
- Pressure vessels
- Heavy machinery
Possible Alternative Grades
While ASTM A714 grades are specifically designed for high-strength applications, alternative grades may include:
- ASTM A53: Standard specification for pipe suitable for welding and bending.
- ASTM A106: Standard specification for seamless carbon steel pipe for high-temperature service.
- ASTM A500: Standard specification for cold-formed welded and seamless carbon steel structural tubing.





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.