Changsha Xiangjia Metal Materical Co., Ltd.

When it comes to plumbing and construction, choosing the right piping material is crucial for ensuring durability and strength. Among the various options available,   black steel pipe , also commonly referred to as carbon steel pipe or mild steel pipe, stands out for its robust properties and practical applications.  ​ What is Black Steel Pipe? Black steel pipe is a type of piping made from low-carbon steel, characterized by its distinctive dark appearance. This aesthetic is due to a black oxide scale that forms on the surface during the manufacturing process. Typically, black steel pipes are supplied as unprocessed round pipes, primarily focused on surface finish rather than having a protective coating.  Properties of Black Steel Pipe One notable aspect of black steel pipes is their susceptibility to corrosion. Without a protective coating, they are more vulnerable to rust, which limits their application in environments exposed to moisture. Therefore, black steel pipes a...

The material of   large - diameter steel pipes   mainly depends on specific application scenarios and requirements, such as conditions of withstanding pressure, temperature, and corrosion. The following are some common materials for large - diameter steel pipes: Carbon steel: It is mainly used for general transmission pipelines and has fairly good pressure - bearing capacity and corrosion - resistance performance. Stainless steel: It is suitable for highly corrosive and high - temperature environments, such as in the fields of chemical industry and seawater desalination. Alloy steel: It is suitable for high - temperature and high - pressure environments, such as in the fields of petroleum and chemical industry. Copper alloy: It is suitable for transporting high - purity gases and liquids, such as in the fields of aerospace and electronics. Aluminum alloy: It is lightweight and suitable for transporting low - pressure gases and liquids, such as in the fields of ventilation and ...

Spiral steel pipes   are extremely important piping materials in modern industry. Due to their high structural strength, convenient construction, and good cost - effectiveness, they are widely used in many fields such as petroleum, natural gas, water conservancy, and construction. Spiral steel pipes of different diameters can meet different engineering requirements. The following will describe the application scenarios and technical characteristics of medium - diameter spiral steel pipes (DN200 - DN1000) in various fields. Medium - diameter spiral steel pipes (DN200 - DN1000) are the most commonly used among spiral steel pipes of different diameters. They take into account both transportation efficiency and construction flexibility and are often seen in the energy and infrastructure fields. Petroleum and natural gas transportation: Spiral steel pipes with DN400 - DN800 are key materials for long - distance pipelines. For example, in the West - to - East Gas Transmission Project, a ...

Straight seam steel pipes , often regarded as a fundamental component in numerous infrastructures, play a vital role in various sectors across the globe. These pipes are characterized by their manufacturing process, which involves welding a flat sheet of steel into a cylindrical shape along a straight seam. The efficiency and robustness of straight seam steel pipes make them ideal for a multitude of applications, particularly in domestic projects.  Key Applications of Straight Seam Steel Pipes 1. Water Engineering Straight seam steel pipes are predominantly utilized in water supply projects. Their strength and durability make them suitable for both drinking water and wastewater systems. As cities expand and the demand for clean water increases, these pipes become essential in constructing and maintaining reliable water delivery and drainage systems. 2. Petrochemical Industry In the petrochemical sector, straight seam steel pipes are crucial for transporting various fluids. Their co...

In modern industrial applications,  spiral steel pipes  have become indispensable due to their high structural strength, ease of construction, and significant cost-effectiveness. They are widely utilized across various sectors, including petroleum, natural gas, water conservancy, and construction. The specific application range of these pipes varies according to diameter, significantly impacting project safety and economic efficiency. In this blog post, we will explore the application scope of the DN200 small diameter spiral steel pipe.  Overview of Small Diameter Spiral Steel Pipe The term "small diameter spiral steel pipe" typically refers to pipes with diameters below 200 millimeters. These pipes have thinner walls and lighter weights, making them ideal for low-pressure fluid transportation and structural support. Let’s delve into their application areas: 1. Municipal Water Supply and Drainage Projects In urban water supply networks, the small diameter spiral steel pip...

  When working within the piping industry, understanding how pipe is measured is crucial for ensuring that you are selecting the right materials for your projects. This blog post will explain the fundamentals of pipe measurement, including Nominal Pipe Size (NPS), wall thickness defined by Schedule (SCH), and the weight of steel pipe.  How is  Pipe  Measured? Pipe is primarily identified by its Nominal Pipe Size (NPS), which is a dimensionless designator that indicates the size of the pipe but does not correspond to actual dimensions. This can create confusion, especially for those new to the piping industry. The outside diameter (OD) of pipes ranging from NPS 1/8 to NPS 12 is defined according to ANSI pipe sizes. For example, in standard practice, a Schedule 40 pipe dimension for sizes up to NPS 12 is roughly equal to its inside diameter (ID). Beyond NPS 12, pipe sizes become less ambiguous. A 14 NPS pipe directly equals a 14” outer diameter. This straightforward co...