Company News

• 2025-11-06

  ASME B16.47 Series A vs B Flanges Explained

  The ASME B16.5 standard covers flanges and flange fittings from NPS ½” to NPS 24″, with pressure ratings of 150–2500. This includes pressure ratings, dimensions, tolerances, materials, markings, and testing. ASME B16.5 and ANSI B16.5 only cover sizes up to 24 inches. For larger flanges, the ASME B16.47 standard covers pipe flanges from 26″ to 60″, with pressure ratings of 75, 150, 300, 400, 600, and 900. ASME B16.47 is then further divided into ASME B16.47 Series A and ASME B16.47 Series B blind flanges and weld neck flanges.

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• 2025-11-05

  Schedule 40 Alloy Steel Pipe

  When searching for or learning about alloy steel pipes, you might see terms like "Schedule 40 alloy steel pipe" or "Sch alloy steel pipe." "Sch" is actually an abbreviation for "Schedule," and both have the same meaning: a parameter used to indicate the wall thickness grade and pressure resistance of steel pipes.

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• 2025-11-04

  Production process of stainless steel tees

  When it is necessary to divert flow during the layout of stainless steel pipelines, stainless steel tees or stainless steel crosses are required. The diameter of the diversion port can be the same as the original pipe diameter (stainless steel equal diameter tee) or different (stainless steel reducing tee). Their process flow and manufacturing methods are basically the same, except that the inner diameter of the die of the diversion port is different in stainless steel reducing tees.

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• 2025-11-03

  Steel Pipe Wall Thickness Chart and Size Guide

  In piping engineering, the available wall thickness depends on the pipe's material, size, pressure rating, and applicable design standards. Typically, the pipe wall thickness is determined based on the pressure and temperature it will withstand and the corrosive properties of the medium flowing through it. When selecting wall thickness, internationally recognized standards are usually referenced, such as those of the American Petroleum Institute (API), the American Society of Mechanical Engineers (ASME), and the American Society for Testing and Materials (ASTM).

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• 2025-10-31

  Thread Cutting Process in Pup Joints

  The thread cutting process in Pup Joints is critical for ensuring reliable connections in piping and drilling assemblies. Pup Joints are widely used in the oil and gas industry to adjust pipe lengths and optimize tool depths in wells. This article explains the process, techniques, and applicable standards, while highlighting best practices and inspection procedures.

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• 2025-10-30

  Advantages and Disadvantages of Ductile Iron Pipes

  The main components of ductile iron pipes include carbon, silicon, manganese, sulfur, phosphorus, and magnesium. They conform to standards GB/T13295-2003 and ISO2531/2003, exhibiting excellent corrosion resistance, good ductility, good sealing performance, and easy installation. They are mainly used for water supply, gas transmission, and oil transportation in municipal and industrial enterprises.

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• 2025-10-29

  Heat-Treated Alloy Steel Pup Joints Supplier

  When you’re looking for a reliable supplier of heat-treated alloy steel pup joints, you need to focus on quality, traceability and service. In this article we explore the key features, technical specifications, manufacturing process and how to pick the right supplier for your oil-field operations. The term pup joints appears frequently in tubing and casing assemblies, so we’ll use it throughout to help with clarity and search-optimization.

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• 2025-10-28

  Several Common Standards for High-Pressure Flanges

  When dealing with piping systems that operate under demanding conditions, choosing the right standard for high-pressure flanges is crucial. In this article, we explore several widely used standards, explain why they matter, and outline how they differ. By understanding these standards, engineers and procurement specialists can achieve safer, more reliable joint connections in high-pressure systems.

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• 2025-10-27

  How Wall Thickness Affects Steel Pipe Strength

  Wall thickness has a significant impact on the load-bearing capacity of steel pipes. This effect is often nonlinear; a seemingly small increase in wall thickness often leads to a significant increase in load-bearing capacity.The load-bearing capacity of steel pipes is primarily reflected in three aspects: internal pressure, bending, and axial compression. Wall thickness has different effects on each of these. Here, we summarize the impact of wall thickness on the load-bearing capacity of steel pipes.

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• 2025-10-25

  ASTM A335 Alloy Steel SMLS Pipe

  ASTM A335 alloy SMLS pipe is widely recognized in the global market as an optimal piping solution for industries such as power generation, petrochemicals, and oil and gas. This grade is sometimes referred to as P11, P22, and P91 due to its high corrosion resistance and strength, making it particularly effective in highly confined environments. This blog post details only the ASTM A335 P11 grade specification and briefly highlights the applications where this pipe is most suitable, though its accessories also offer numerous advantages.

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• 2025-10-24

  ASTM A36 C Channel Steel

  ASTM A36 C Channel Steel is a structural profile widely used in industrial and construction projects. Thanks to its excellent strength and versatility, it has become a popular choice among engineers and manufacturers. Moreover, its chemical composition ensures stable performance and long service life.

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• 2025-10-23

  API 5B Thread Pup Joints

  In the oil and gas industry, reliable connections between pipes are critical for the efficiency and safety of drilling and production operations. One essential component that ensures smooth pipe connection is the Pup Joint. When combined with API 5B threads, these joints achieve high precision, strong sealing performance, and excellent interchangeability. API 5B Thread Pup Joints are widely used in tubing, casing, and drill pipe systems to adjust string length, facilitate maintenance, and ensure tight and secure connections.

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