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S235 vs S275 vs S355 structural steel: what is the difference?
Choosing the correct steel grade is one of the most important steps when specifying European structural steel sections. Among the most commonly encountered grades are S235, S275, and S355. This article will briefly introduce the difference between S235, S275 and S355 structural steel.
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European standard structural steel sections: grades, standards, sizes and applications
European standard structural steel sections are widely used in buildings, industrial facilities, bridges, warehouses, infrastructure projects, and other load-bearing structures. Their standardized dimensions, steel grades, and mechanical requirements make them suitable for projects that require consistent structural performance. Here's an overview of European standard structural steel sections.
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ASTM A335 P9 pipe: specification, properties, dimensions and applications
ASTM A335 P9 pipe is a seamless ferritic alloy steel pipe designed for high-temperature service. Also designated as ASME SA335 P9, it belongs to the chromium-molybdenum (Cr-Mo) alloy steel family and is commonly used in refineries, petrochemical plants, power generation, and other high-temperature piping systems. Here's an overview of ASTM A335 P9 pipe.
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ASTM A335 P5C alloy steel pipe: properties, standards and applications
ASTM A335 P5C pipe is a seamless ferritic alloy steel pipe designed for high-temperature and pressure applications. As a chromium-molybdenum (Cr-Mo) alloy steel, it combines elevated-temperature strength with good resistance to oxidation and demanding service conditions. Here's an introduction to ASTM A335 P5C alloy steel pipe.
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ASTM A213 seamless alloy tube tolerance: od, wall thickness and length
ASTM A213 seamless alloy tubes are widely used in boilers, superheaters, heat exchangers, and other high-temperature applications. For these systems, dimensional accuracy is essential because variations in outside diameter, wall thickness, length, or straightness can affect installation, heat transfer, tube-to-tubesheet fit, and overall equipment performance. Here's an overview of ASTM A213 seamless alloy tube tolerance.
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ASTM A213 vs ASTM A269 stainless steel tubing: key differences and applications
Choosing between ASTM A213 and ASTM A269 stainless steel tubing can be confusing because both standards cover austenitic stainless steel tubing and share several material and testing requirements. However, they are designed for different service applications. Here's an overview of differences between ASTM A213 and ASTM A269 stainless steel tubing.
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Low-temperature seamless steel pipe: grades, chemical composition and cryogenic applications
Low-temperature piping systems require materials that maintain excellent toughness, strength, and dimensional stability under sub-zero operating conditions. Industries such as LNG, petrochemical processing, industrial gases, cryogenic storage, and low-temperature power applications rely on specially designed seamless steel pipes to ensure safe and reliable operation.
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Corrosion resistant alloy steel pipes: grades, applications and material selection guide
Corrosion is one of the leading causes of equipment failure in refineries, petrochemical plants, thermal power stations, and chemical processing facilities. Selecting the right corrosion-resistant alloy steel pipe is essential for extending equipment life, reducing maintenance costs, and ensuring long-term operational reliability.
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A complete guide to 1.25Cr-0.5Mo seamless steel pipe
1.25Cr-0.5Mo alloy steel is a widely used chromium-molybdenum low-alloy steel developed for medium- and high-temperature pressure applications. At Union Steel Industry, we manufacture and supply 1.25Cr-0.5Mo seamless steel pipes and boiler tubes that comply with international standards. Our products are designed to provide excellent mechanical performance, dimensional accuracy, and long service life for critical piping systems.
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2.25Cr-1Mo seamless steel pipe: properties, equivalent grades and applications
2.25Cr-1Mo alloy steel is one of the most widely used chromium-molybdenum steels for high-temperature and high-pressure service. Thanks to its excellent creep resistance, oxidation resistance, and long-term thermal stability, it is extensively applied in power generation, petrochemical processing, refinery units, and industrial boiler systems. At Union Steel Industry, we manufacture and supply 2.25Cr-1Mo seamless steel pipes and boiler tubes in accordance with international standards, providing reliable solutions for demanding operating environments where elevated temperatures and pressures are critical.
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