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2025-03-19

Galvanized Seamless Steel Pipe Quality Check Guide

Galvanized seamless steel pipes come in two types: hot-dip galvanizing and electro-galvanizing (cold galvanizing). Hot-dip galvanized pipes have a thicker zinc coating, providing uniform coverage, strong adhesion, and long service life. In contrast, electro-galvanized pipes are more cost-effective but offer lower corrosion resistance and a less smooth surface.

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2025-03-18

Grades of ASTM A500 Steel Structural Tubing

ASTM A500 is a standard specification set by ASTM International for cold-formed welded and seamless carbon steel tubing used in structural applications. This standard outlines the requirements for tubes that are used in bridges, buildings, and other structures that require welding, bolting, or riveting. It includes a wide range of tubing shapes such as round, square, rectangular, and special shapes made from carbon steel. Known for its strength and durability, ASTM A500 steel structural tubing is a staple in many construction and engineering projects.ASTM A500 is cold-formed welded seamless carbon steel structural tubing intended for welded, riveted or bolted bridge and building structures and general structural purposes.

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2025-03-18

What is the difference between MS and GI ?

Ever wondered what sets Galvanized Iron (GI) apart from Mild Steel (MS)? While both are steel-based materials, GI stands out for its zinc coating, making it highly resistant to rust—perfect for water pipes and outdoor structures. MS, on the other hand, is all about flexibility and affordability. It’s the go-to choice for welding, machinery, and construction projects. The key difference? GI fights corrosion better, while MS offers more versatility at a lower cost. Picking the right one depends on what you need it for!

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2025-03-17

Hot rolled seamless steel pipe specifications

Seamless steel pipe is made of a whole round steel through perforation, and the steel pipe without weld on the surface is called seamless steel pipe. According to the production method, seamless steel pipe can be divided into hot-rolled seamless steel pipe, cold-rolled seamless steel pipe, cold-drawn seamless steel pipe, extruded seamless steel pipe and jacking pipe.Hot-rolled seamless steel pipe is a large category of seamless steel pipes, which are divided according to the production method. Hot rolling is relative to cold rolling, which is rolling at room temperature, while hot rolling is rolling above the recrystallization temperature. Seamless steel pipe is relative to welded steel pipe. Seamless steel pipe is usually made by perforating round steel and then processing, while welded steel pipe is usually made by welding steel plates in different ways.

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2025-03-17

How to judge the quality of steel pipes?

Steel pipes are widely used in high, medium and low pressure fluid transportation pipelines such as oil, natural gas, water, steam, and coal gas, as well as steel pipes for piling, bridges, and buildings. Good quality steel pipes are convenient and beneficial to the people, but while steel pipes are developing rapidly, some counterfeit products will appear on the market one after another. So how to judge the quality of steel pipes?

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2025-03-14

Comprehensive introduction of 3PE Coating anti-corrosion steel pipe

3PE, also called 3LPE, 3PE anti-corrosion steel pipe is a coating method for carbon steel pipe. 3PE anti-corrosion steel pipe refers to a steel pipe whose outer wall is protected by a three-layer polyethylene (3PE) anti-corrosion coating. 3PE anti-corrosion steel pipe parent materials include seamless steel pipes, spiral steel pipes and straight seam steel pipes. Whether it is welded steel pipes, stainless steel pipes, alloy steel pipes, nickel alloy pipes, CRA coated seamless steel pipes or lined pipes, 3PE can be applied to the pipes. The three-layer polyethylene (3PE) anti-corrosion coating has been widely used in the oil pipeline industry for its good corrosion resistance, water vapor permeability resistance and mechanical properties.

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2025-03-14

ERW Piling Pipe

When choosing a piling pipe, there are many types of steel pipes to choose from, such as seamless piling pipe and ERW pipe piling pipe, both of which have their own different characteristics, advantages and limitations. In this article, we will compare seamless and ERW piling pipes and explore their differences, advantages and ideal use cases to help you make an informed decision.

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2025-03-13

ASTM A178 Boiler Tube: A Comprehensive Guide

The ASTM A178 boiler tube is a crucial component in the steam and power generation industry. Manufactured under the standards set by ASTM (formerly known as the American Society for Testing and Materials), ASTM A178 boiler tubes are designed to withstand high pressures and temperatures, ensuring the efficiency and safety of steam boilers. This article will delve into the specifics of ASTM A178 boiler tubes, their applications, material composition, manufacturing process.

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2025-03-13

What Are the Common Materials for Boiler Tubes?

Boiler tubes are made from carbon steel or alloy steel and can withstand high pressures and temperatures. Boiler tubes are seamless and come in two types: medium pressure and high pressure, depending on the intended use. Boiler tubes are important to many industries, especially steam boilers, power plants, and factories.

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2025-03-12

What is a stainless steel flange?

Stainless steel flanges are actually not difficult to understand. Stainless steel flanges are one of the flanges. Stainless steel flanges originated in the 1980s and are an emerging industry. After more than 20 years of development and exploration, it has now taken shape. Stainless steel flanges are a type of pipe fittings, mainly made of stainless steel. With the development of the economy, the application range of stainless steel flanges is becoming wider and wider. The corrosion resistance of the passivation layer on the surface of stainless steel is analyzed, combined with advanced production processes and equipment applications, and the stainless steel clamps produced not only meet the needs of daily production and life, but also fill the domestic gap.

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2025-03-12

Packaging Methods of OCTG Casing and Tubing

Proper packaging of Oil Country Tubular Goods (OCTG), specifically casing and tubing, is essential to ensure safe transportation, storage, and handling in the oil and gas industry. Effective packaging methods not only protect the pipes from physical damage but also preserve their integrity, which is crucial for maintaining wellbore stability and efficient hydrocarbon extraction.

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2025-03-11

The latest development trend of stainless steel welded pipe

Stainless steel welded pipes are steadily replacing seamless pipes in various industrial applications, particularly in heat exchangers, boilers, and superheaters. Their superior cost efficiency, improved welding technology, and enhanced performance have made them the preferred choice for industrial heat exchange systems. While seamless pipes are still used in some applications, welded pipes now dominate due to their higher production efficiency, lower costs, and technological advancements.