Product News

I. Table of Common Sizes for Seamless Steel Pipes Nominal Diameter DN NPS Outside Diameter OD (mm) SCH 10 (mm) SCH 20 (mm) SCH 40 / STD (mm) SCH 60 (mm) SCH 80 / XS (mm) SCH 100 (mm) SCH 120 (mm) SCH 160 (mm) 15 1/2″ 21.3 2.11 — 2.77 — 3.73 — — […]

Carbon steel seamless pipes are widely regarded as the “blood vessels” of industrial transportation and engineering construction, thanks to their high-strength seamless structure, excellent pressure resistance, and outstanding high-temperature performance. Whether used in oil and gas extraction, high-pressure boiler manufacturing, or structural support in construction, carbon steel seamless pipes play an indispensable role. This article

In high-salinity environments—such as coastal areas, tidal flats, and saline-alkali lands—subsurface soil and groundwater contain persistently high concentrations of chloride ions. Due to their strong penetrating power and high electrical conductivity, these ions cause the rate of electrochemical corrosion in high-salinity regions to be several to even dozens of times faster than in typical inland

During the extraction and transportation of oil and natural gas, as well as the application of heavy oil thermal recovery technologies, the temperature of the transported medium in pipelines continues to increase as well depth increases. In many cases, the operating temperature can reach 80°C to 150°C, or even higher. Under such high-temperature operating conditions,

Some steel pipelines buried underground, originally designed to last for decades, develop perforations and leaks within just a few years. This “short lifespan” not only causes enormous economic losses but can also lead to serious safety and environmental incidents. The rapid corrosion of underground pipelines is by no means caused by a single factor; rather,

Among the many corrosion-protection technologies available, FBE-coated steel pipes (fusion-bonded epoxy powder-coated steel pipes) have become the “workhorse” of pipeline projects worldwide due to their excellent adhesion and resistance to cathodic delamination. So, how exactly should buyers look beyond the surface of a manufacturer’s production processes to accurately verify the quality of the corrosion-protection coating?

When it comes to engineering procurement, quality cannot be discussed in isolation from “value for money.” To answer the question “Which solution is more cost-effective?”, we must consider both the initial procurement costs and the maintenance costs over the product’s lifecycle. This article will break down the underlying logic of these two corrosion protection solutions

When procuring, budgeting for, or bidding on pipelines, “How much does 3PE anti-corrosion steel pipe cost per metric ton (or per meter)?” is usually the question everyone is most concerned about. Many procurement professionals find that not only do quotes from different manufacturers on the market vary widely, but prices also fluctuate frequently. The price

3PE anti-corrosion steel pipes are currently one of the corrosion protection technologies used in oil and gas transmission, water supply, and drainage pipeline projects worldwide. The following outlines the entire manufacturing process for 3PE pipes—from the arrival of the steel pipes at the factory to the final product—to give you an understanding of the technology

In oil and gas transportation, urban water supply, and long-distance pipeline projects, selecting an appropriate anti-corrosion coating is a decisive factor in ensuring the service life of steel pipes. 3PE anti-corrosion steel pipes and FBE (Fusion Bonded Epoxy) coated pipes are two of the most widely used industrial anti-corrosion solutions today, each offering distinct performance