Company News

2024-08-16

Carbon Steel Pipe vs Stainless Steel Pipe

Many people often confuse carbon steel pipe and stainless steel pipe. In fact, there are significant differences between the two. As we all know, stainless steel is an alloy metal with good corrosion resistance, while carbon steel is relatively lacking in this property. In addition, carbon steel has greater hardness due to its higher carbon content. Steel is widely used in bridges, railways, buildings, processing equipment, machinery and automobiles. In these applications, the type of steel used is mainly based on the difference in mechanical properties and corrosion protection needs. So, what are the differences between carbon steel pipe fittings and stainless steel pipe fittings? Generally speaking, carbon steel is an alloy composed of elements such as iron and carbon. Depending on the composition, the hardness and brittleness of carbon steel will increase with the increase of carbon content, while the strength will decrease. Therefore, the main difference between carbon steel pipe fittings and stainless steel pipe fittings is their alloy composition. Due to the excellent corrosion resistance and environmental protection characteristics of stainless steel pipes, the market demand for stainless steel pipes is growing today. At the same time, the use of carbon steel pipes is also very common, and many people find it difficult to distinguish between the two. Today, let's take a detailed look at their differences.

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2024-08-15

Manufacturing Process of Oil Drill Pipe

Drill pipes are a crucial component of the drill string, playing a vital role in the drilling process. Their primary functions include transferring drilling mud to the drill bit, working with the drill bit to lift, lower, or rotate the bottom hole assembly, and withstanding significant internal and external pressure, torque, bending, and vibration. Thus, the manufacturing process of drill pipes must be meticulously controlled to ensure their reliability and durability in harsh drilling environments. Drill pipe is an indispensable key component in drilling operations. Its main functions include effectively transferring drilling mud to the drill bit, connecting the drill collar at the bottom, and lifting, lowering or rotating the bottom hole device together with the drill bit. The drill pipe not only bears huge internal and external pressure and torque, but also has to withstand bending and vibration during the drilling process. The standard of drill pipe is API 5CT. In order to ensure that the drill pipe can operate stably in harsh drilling environments, its manufacturing process must be finely optimized.

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2024-08-15

Specifications Of Seamless Steel Pipe

Seamless steel pipe is made of steel ingot or solid tube billet by perforation into rough tube, and then hot rolled, cold rolled or cold drawn. The specifications of seamless steel pipe are expressed by outer diameter and wall thickness in millimeters. Seamless steel pipe is divided into hot rolled and cold rolled (drawn) seamless steel pipe. Generally, seamless steel pipe is made of 10#, 20#, 30#, 35#, 45# and other high-quality carbon steel, 16Mn, 5MnV and other low alloy structural steel or 40Cr, 30CrMnSi, 45Mn2, 40MnB and other alloy steel by hot rolling or cold rolling. Seamless pipe made of low carbon steel such as 10# and 20# is mainly used for fluid transportation pipelines. Seamless pipe made of medium carbon steel such as 45# and 40Cr is used to manufacture Mechanical parts, such as load-bearing parts of automobiles and tractors. Generally, seamless steel pipes must be used to ensure strength and flattening tests. Hot-rolled steel pipes are delivered in hot-rolled or heat-treated states; cold-rolled steel pipes are delivered in heat-treated states.

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2024-08-14

Standard Rectangular Tube Size Table

Rectangular tubes are an incomparable and indispensable material in building decoration, machinery manufacturing, steel structure engineering, and glass curtain walls. They are also common in daily life, such as anti-theft windows and guardrails. They are used in places where rectangular tubes are used. The main reason is that proper use will have unexpected effects, especially the selection of rectangular tube specifications and sizes. This is an important link because it means safety hazards. For example, when installing guardrails in the construction industry, there have been news reports that there are countless cases of casualties caused by broken guardrails, so you can’t be careless when choosing rectangular tube specifications and sizes.

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2024-08-14

What are the carbon steel pipe fittings?

Carbon steel pipe fittings, as an indispensable part of the modern industrial field, its special performance and wide application field make it a material in many industries. Carbon steel pipe fittings are currently the most widely used pipe fittings. They have different shapes and sizes, including elbows, tees, crosses, flanges and caps. Carbon steel pipe fittings have many advantages, such as pressure resistance, corrosion resistance and strong reliability, so they are widely used in many industries. Below, we will discuss the main characteristics of carbon steel pipe fittings in detail.

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2024-08-13

Carbon Steel Pipe Specifications and Sizes

Carbon steel pipe is a common metal pipe made of elements such as carbon and iron. It has high strength, corrosion resistance, and high temperature resistance, and is used in construction, structures, and liquid transportation of water, oil, and gas. The specifications and sizes of carbon steel pipe refer to the parameters of the pipe such as the outer diameter, wall thickness, and length. Carbon steel pipe is manufactured using a variety of different technologies to produce pipes with various characteristics. The carbon content in carbon steel pipe can be as high as 2.1% of the total alloy weight. Any increase in the carbon percentage in the alloy used to manufacture carbon steel line pipe increases the hardness and tensile strength of the metal. Black carbon steel casing loses its ductility even if the carbon percentage increases.

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2024-08-13

API 5L Seamless Steel Pipe

API SPEC 5L is an international standard that specifically regulates the manufacturing requirements of welded steel pipes used in pipeline transportation systems in the oil and gas industry. This standard includes two product specification levels (PSL 1 and PSL 2), which can ensure the performance and reliability of pipeline steel pipes under various environmental conditions. API 5L seamless steel pipe, that is, pipeline steel seamless steel pipe, is a key material widely used in the field of oil and gas transportation. Its main materials include GR.B, X42, X46, X52, X56, X60, X65, X70, etc.

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2024-08-12

Difference of Galvanized Steel Pipe and Black Steel Pipe

In residential and commercial buildings, the delivery of water and natural gas depends on the right piping system. Common types of pipes include galvanized steel pipe and black steel pipe, which have significant differences in material, application and performance. Understanding these differences is essential to choosing the right pipe. In the field of liquid and gas transportation, black steel pipe and galvanized steel pipe are the two most common pipes. There are many similarities between the two in appearance, material and application, which can easily lead to confusion. However, there are also significant differences between them, especially in corrosion resistance, use and cost. Understanding these differences will help you choose the right pipe in your project.

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2024-08-12

Common standards for OCTG casing and tubing

At present, the production and inspection standards widely used at home and abroad for OCTG casing and tubing are mainly based on the American Petroleum Institute (API) standards. Casing and tubing adopt API SPEC5 CT standard, drill pipe adopts API SPEC5 standard, and drill pipe joint adopts API SPEC7 standard. In the process of oil and natural gas extraction, casing and tubing are two indispensable key pipes, and their quality is directly related to the safety and production efficiency of oil and gas wells. This article will elaborate on the relevant standards of casing and tubing, and analyze its implementation standards, product characteristics, specification range, steel grade, manufacturing process, chemical composition and mechanical properties, testing items and other aspects in combination with actual application needs, so as to provide a more comprehensive reference for petroleum engineering.

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2024-08-09

What are the applications of drill collars?

Drill collars are one of the key components in the drilling industry. As part of the bottom hole assembly (BHA), they are located below the drill pipe and directly connected to the drill bit. Although it seems to only increase the weight of the drill bit, the function of the drill collar is far more than that. During the drilling process, it not only helps control the direction, but also keeps the drill pipe in tension by providing additional weight, reducing the risk of bending and breaking. Therefore, the importance of drill collars in the entire drill string is no less than that of drill pipes, and it can even be said to be an indispensable part of it.

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2024-08-09

API 5L VS API 5CT

API standards are developed to ensure that products and processes in the oil and gas industry meet legal and environmental requirements. These standards provide a reference framework for various products in the industry, including OCTG (Oil Country Tubular Goods) products. API 5L and API 5CT are two of the most important standards. Although they both involve steel pipes, their uses and requirements are different. This article will compare the main differences between API 5L and API 5CT in detail, covering different aspects.

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2024-08-08

Manufacturing and Applications of Carbon Steel Pipes

Carbon steel pipes are made from steel ingots or solid round steel that is perforated to make a rough pipe and then processed through hot rolling, cold rolling, or cold drawing. Carbon steel pipes hold a significant position in the steel pipe industry. They are a common type of metal pipe made of carbon and iron, among other elements. Carbon steel pipes have good corrosion resistance, pressure-bearing capacity, and workability, making them widely used in many fields.