First: Causes of Alkali Reversion (White Rust, Black Spots)1. Principle of White Rust Formation on Galvanized Steel Sheets: When galvanized steel sheets are densely packed and placed in humid air, without free air flow across the surface, electrochemical corrosion of the zinc layer occurs, resulting

In the steel plate business, many people often encounter these types of products, and some are confused about the differences: Is pickling considered cold rolling or hot rolling? Is cold forming considered cold rolling or hot rolling? Are hard rolling and cold rolling the same? These are soul-search

First, the Standard Positioning and Scope of Application of 25MnG High-Pressure Boiler Steel PipesGB/T 5310-2023 is a national standard for seamless steel pipes for high-pressure boilers and above. It was issued on September 7, 2023, and officially implemented on April 1, 2024. This standard specifi

DN1400 steel pipe, a giant-class steel pipe, plays a vital role in modern engineering. With a diameter of 1400 mm, it performs crucial conveying and supporting functions and is widely used in various engineering projects.1. Manufacturing Process of DN1400 Steel Pipe:The manufacturing of DN1400 steel

In the bustling steel industry, threaded boiler steel pipes, with their unique structure and excellent performance, have become an indispensable pillar in numerous industrial sectors. Today, let's delve into the world of threaded boiler steel pipes and explore their unique charm and wide-ranging app

1. Inspect the surface of the spiral steel pipe to determine if the production process is sophisticated. This generally requires analysis of the spiral steel. Counterfeit and inferior spiral steel pipe has an oval cross-section. This is because the manufacturer saves on raw materials, using slightly

Q235B longitudinally welded pipe is widely used in construction, machinery manufacturing, steel structures, and other fields. Its performance characteristics, production process, and market applications have always been a focus of attention in the industrial sector. The following will provide a deta

Double-layer epoxy seamless steel pipe is a widely used pipe material favored by many industries for its high strength and corrosion resistance. It plays an important role in construction, the petrochemical industry, and water supply and drainage systems.First, the characteristics of the double-laye

Straight-Seam Welded Steel Pipe and Plate is a common product in the steel industry with a wide range of applications. It is made by cutting, bending, and rolling steel plates into a tubular shape, and then joining the steel plates together through straight-seam welding.First, Characteristics of Str

38CrMoAl is a medium-carbon alloy structural steel with a carefully designed chemical composition. According to data, it contains 0.35%-0.42% carbon, 1.35%-1.65% chromium, 0.15%-0.25% molybdenum, and a moderate addition of aluminum (0.70%-1.10%). This unique elemental composition imparts excellent o