Company News

• 2025-04-28

  Major Types of Cast Iron Pipes in Detail

  The essence of a cast iron pipe is a ductile iron pipe. Since the ductile iron pipe has the properties of iron and the performance of steel, it is called a ductile iron pipe. The graphite in the ductile iron pipe is spherical, and the size of the graphite is 6-7. In terms of quality, the spheroidization level of the cast iron pipe is required to be controlled at level 1-3, and the spheroidization rate is ≥80%. Therefore, the mechanical properties of the material itself are well improved, with the properties of iron and the performance of steel. The metallographic structure of the ductile iron pipe after annealing is ferrite and a small amount of pearlite. It has good mechanical properties, so it is also called a cast iron pipe.

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• 2025-04-27

  Types of Steel Pipe Piles

  Steel pipe piles are an essential component in modern foundation engineering. They are mainly used to transfer structural loads deep into stable soil or rock layers. With their excellent strength and versatility, steel pipe piles play a vital role in construction, marine engineering, and large-scale infrastructure projects.

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• 2025-04-27

  Classification and process description of galvanized pipes

  As a common anti-corrosion steel, galvanized pipes are widely used in construction, transportation, agriculture, machinery manufacturing and other fields. With its excellent weather resistance and economic practicality, galvanized pipes play an important role in all walks of life. So, what are the specific categories of galvanized pipes? What are the differences between different galvanizing processes? This article will give you a systematic analysis.

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• 2025-04-25

  SSAW Steel Pipe Specification Size Chart

  SSAW steel pipe for steel casing is a spiral seam steel pipe made of strip steel coil as raw material, extruded at room temperature, and welded by automatic double-wire double-sided submerged arc welding process. The spiral steel pipe sends the strip steel into the welding pipe unit, and after multiple roller rolling, the strip steel gradually rolls up to form a round tube blank with an open gap. The pressing amount of the extrusion roller is adjusted to control the weld gap to 1~3mm, and the two ends of the weld are flush.

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• 2025-04-25

  Advantages and Performance of Hot-Dip Galvanized Square Tubes

  The production and application of galvanized square tubes have gradually established corresponding methods after many years of social experience. Cold-dip galvanized tubes have gradually withdrawn from the stage of application due to product shortcomings. Hot-dip galvanized steel pipes are made by reacting molten metal with iron substrate to form an aluminum alloy layer, so that the substrate and the coating are closely bonded. Hot-dip galvanizing is to first pickle and passivate the square steel pipe. In order to remove the impurities on the surface of the square steel pipe, after pickling and passivation, it is cleaned in an ammonium chloride or magnesium chloride solution or a mixed solution of ammonium chloride and magnesium chloride, and then sent to the hot-dip galvanizing tank. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.

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• 2025-04-24

  What is U-Channel Steel?

  For a long time, steel has proven its increasing superiority in the construction field, standing out for its outstanding characteristics, such as high strength, significant corrosion resistance and flexibility to meet the special requirements of construction projects.In the series of structural steel materials, U-shaped steel ranks first in the list of popular materials, becoming a special point that attracts the attention of many experts and construction contractors. This comes not only from its diversity in application, but also from the performance optimization and aesthetic value of U-shaped steel for construction and technical engineering.

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• 2025-04-24

  Galvanized Iron vs Galvanized Steel Comparison Guide

  When it comes to choosing piping for construction, water systems, or outdoor applications, one common question that arises is: What’s the difference between galvanized iron pipe and galvanized steel pipe? At first glance, they may look identical, both coated with a shiny silver layer of zinc to resist corrosion. But underneath the surface, they are quite different—and those differences can have a big impact on performance, cost, and lifespan.In this article, we’ll explore everything you need to know about galvanized iron pipes vs. galvanized steel pipes, including how they’re made, their strengths and weaknesses, typical use cases, and how to choose the right one for your next project.

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• 2025-04-23

  Heavy Weight Drill Pipe (HWDP) Technical Specifications

  In the world of drilling technology, ensuring the efficiency, safety, and stability of the drill string is paramount. One such essential innovation that has enhanced drilling operations is the Weighted Drill Pipe (HDWP). Made from solid bar stock and thick-walled steel pipes, the HDWP serves a specialized function by integrating the characteristics of both drill collars and drill pipes. It is designed to provide a smoother transition between drill collars and drill pipes, reducing stress concentration, improving the stability of the drilling system, and boosting the overall performance of drilling rigs.

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• 2025-04-23

  Comprehensive Guide to Crossover Joints in Oil & Gas

  In oilfield operations, the success of a well often depends on the small components that ensure everything fits and functions correctly. Tubing pup joints and crossover subs are two such essential tools. Though compact, they are critical for achieving the precise length, compatibility, and performance required in oil, gas, and injection wells.

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• 2025-04-22

  Common Materials and Standards for Carbon Steel Flanges

  Carbon steel flanges are fundamental components used in a wide range of industrial piping systems. Their primary role is to connect pipes, valves, pumps, and other equipment to form a complete pipeline infrastructure. These flanges offer high strength, excellent sealing capabilities, and are typically more cost-effective compared to other alloy or stainless-steel variants.

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• 2025-04-22

  What Is ASTM A105?

  ASTM A105 is one of the most widely used forged carbon steels for piping components in industrial applications. Known for its strength, versatility, and cost-effectiveness, it plays a key role in the oil & gas, petrochemical, power generation, and shipbuilding sectors.This guide covers everything you need to know about ASTM A105—its chemical and mechanical properties, applications, comparison with similar grades, and tips for sourcing quality products.

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• 2025-04-21

  Stainless Steel VS Mild Steel Pipe: Which is Better?

  Choosing the right type of steel for your project can make a big difference in cost, performance, and durability. When it comes to two of the most common options—mild steel and stainless steel—each has unique characteristics that make it suitable for specific uses.Understanding the differences between these two materials is essential, whether you're building a structure, manufacturing a product, or choosing a material for everyday tools. In this article, we'll explore what sets mild steel and stainless steel apart, their benefits, and when to use each one.

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