ASTM A381 High Strength Low Alloy Steel Pipe For High-Pressure Transmission Systems
Product Details
High Strength Steel Pipe
,High Pressure Transmission Systems Steel Pipe
,ASTM A381 Steel Pipe
ASTM A381 High-Strength Low-Alloy Steel Pipe for Use With High-Pressure Transmission Systems
Introduction
ASTM A381 is a specification that covers high-strength low-alloy steel pipe used in high-pressure transmission systems. This standard provides guidelines for the material, specification, chemical composition, mechanical properties, and application of these pipes. In this article, we will delve into the details of ASTM A381, exploring its material composition, mechanical properties, and applications.
Material
ASTM A381 specifies the use of high-strength low-alloy steel for the manufacturing of pipes used in high-pressure transmission systems. This type of steel offers excellent strength and toughness while maintaining good weldability and formability. The material used in ASTM A381 pipes ensures reliable performance and durability in demanding applications.
Specification
The specification outlined in ASTM A381 provides a comprehensive guideline for the manufacturing and testing of high-strength low-alloy steel pipes. It covers various aspects such as dimensions, tolerances, and requirements for chemical composition and mechanical properties. Compliance with these specifications ensures the pipes meet the necessary standards for high-pressure transmission systems.
Chemical Composition
The chemical composition of ASTM A381 pipes is crucial in determining their mechanical properties and overall performance. The table below presents the typical chemical composition of these pipes:
| Element | Composition Range (%) |
|---|---|
| Carbon | 0.20 - 0.30 |
| Manganese | 1.00 - 1.60 |
| Phosphorus | 0.035 (max) |
| Sulfur | 0.040 (max) |
| Silicon | 0.15 - 0.35 |
| Nickel | 0.40 (max) |
| Chromium | 0.30 (max) |
| Copper | 0.40 (max) |
| Vanadium | 0.08 (max) |
| Molybdenum | 0.15 (max) |
Mechanical Properties
The mechanical properties of ASTM A381 pipes are essential for assessing their strength, ductility, and ability to withstand high-pressure transmission systems. The table below presents the typical mechanical properties of these pipes:
| Property | Minimum Value |
|---|---|
| Tensile Strength | 70,000 psi (485 MPa) (min) |
| Yield Strength | 50,000 psi (345 MPa) (min) |
| Elongation | 22% (min) |
| Hardness | 85 HRB (max) |
Application
ASTM A381 high-strength low-alloy steel pipes find extensive use in high-pressure transmission systems. These pipes are designed to withstand the demanding conditions of such systems, including high pressures and extreme temperatures. They are commonly used in industries such as oil and gas, petrochemical, and power generation. The excellent strength, toughness, and weldability of ASTM A381 pipes make them suitable for critical applications where reliability and performance are paramount.
Haiyan Sanxin Steel Pipe Factory is a leading manufacturer of steel pipes in China. Located in a region with excellent geographical advantages, the factory is situated close to the Zhoushan Port and Ningbo Port.
Our factory covers an area of more than 25,000 square meters and has been in the steel pipe manufacturing business for 20 years. Over this period, we have accumulated a wealth of professional experience, which has helped us establish ourselves as a trusted name in the industry.
At our factory, we specialize in the production of various types of steel pipes, including stainless steel pipe, carbon steel pipe, copper pipe, steel pipe,seamless steel pipe and welded pipe. Our expertise in this field is evident from the 12 patents that we hold, which demonstrate our commitment to innovation and excellence.
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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