Product Specification

GOST 8732-78 Alloy Tubing: Hot Rolled Seamless Steel Alloy Tube Hot-Worked Steel Pipes For Natural Gas

Introduction

GOST 8732-78 refers to a Russian standard that governs the manufacturing and quality control of hot-rolled seamless steel alloy tubes, specifically designed for use in hot-worked steel pipes used in natural gas applications. This standard ensures the production of reliable and durable pipes that meet the stringent requirements of the natural gas industry.

Material and Specification

The GOST 8732-78 standard specifies the material composition, dimensions, tolerances, and mechanical properties required for hot-rolled seamless steel alloy tubes. The material used in these tubes is typically an alloy steel, which provides enhanced strength and corrosion resistance.

The tubes are manufactured using a hot rolling process, ensuring precise dimensions and a seamless structure. This technique offers an excellent balance between strength and ductility, making the tubes suitable for demanding natural gas applications.

Key Features

The key features of GOST 8732-78 alloy tubing include:

1. Seamless Structure: The tubes are manufactured without any welded joints, ensuring a seamless structure that minimizes the risk of leaks or failures.
2. High Strength: The alloy steel used in the tubes provides superior strength, making them capable of withstanding high pressure and temperature conditions commonly found in natural gas pipelines.
3. Corrosion Resistance: The alloy composition of the tubes provides resistance against corrosion, preventing the degradation of the material over time.
4. Dimensional Accuracy: GOST 8732-78 guarantees precise dimensions and tolerances, enabling seamless integration with other pipeline components.
5. Reliability: The tubes undergo stringent quality control measures to ensure their reliability, safety, and long service life.

Chemical Composition

Mechanical Properties

Steel Grade

GOST 8732-78 alloy tubing is available in various steel grades. The most commonly used steel grades include:

• 20
• 35
• 45
• 40Kh
• 50KhG
• 12KhGM
• 15KhGM

Application

These hot-rolled seamless steel alloy tubes, conforming to GOST 8732-78, find extensive use in the natural gas industry. They are primarily employed in the fabrication of hot-worked steel pipes for the transportation of natural gas.

Due to their high strength, corrosion resistance, and reliable performance, these tubes are essential components in the construction of natural gas pipelines, ensuring the safe and efficient transportation of gas over long distances.

Possible Alternative Grades

While GOST 8732-78 alloy tubing provides excellent performance in natural gas applications, there are alternative grades of steel tubes available as well. Some of the possible alternative grades that may be considered based on specific project requirements include ASTM A53, DIN 1629, and API 5L.

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.