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06Jan, 2026
P91 steel is a martensitic heat-resistant steel formed by adding elements such as vanadium, niobium, and nitrogen to 9Cr-1Mo steel. It has a maximum service temperature of 650℃ and is mainly used in t
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06Jan, 2026
What material is P9 boiler tube
P9 is a ferritic chromium-molybdenum alloy steel, conforming to ASTM A335/ASME SA335 standards. Its core components are 8-10% chromium (Cr) and 0.9-1.1% molybdenum (Mo), supplemented with elements suc
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06Jan, 2026
What is the chemical composition of P5 material
P5 alloy pipe is a steel pipe made of alloy material. It belongs to the category of low and medium pressure boiler heating surface pipes used in industrial fields. The main alloying elements include v
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06Jan, 2026
What is P22 material chemical composition
P22 is a ferritic alloy seamless steel pipe, with chromium (Cr) and molybdenum (Mo) as its main alloying elements. Its unique alloy formula endows the steel pipe with excellent heat resistance, oxidat
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06Jan, 2026
What is the difference between P22 and P91 pipe
P91 and P22 are high-strength martensitic heat-resistant steels widely used in power plant piping systems and are ASME (American Society of Mechanical Engineers) certified materials. Their full names
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06Jan, 2026
What is the difference between ASTM A335 P11 and P22
A335 P11 and P22 alloy steel pipes are chromium-molybdenum high-temperature ferritic alloy steel pipes in the ASTM A335 standard. These pipes are designed for high-temperature and high-pressure enviro
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06Jan, 2026
What is the material composition of P11 pipe
A335P11 seamless steel pipe, its name follows the standard of the American Society for Testing and Materials (ASTM). "A335" refers to the standard number, specifying the requirements for seamless ferr
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06Jan, 2026
What is the difference between P5 and P11 pipe
P5 and P11 are manufactured in strict accordance with ASME SA335/SA335M standards, while also meeting the requirements of relevant standards such as ASTM A335, ensuring that the product quality meets
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06Jan, 2026
What is the yield strength of ASTM A335 P11 pipe
P11 is a medium- and low-temperature heat-resistant alloy steel pipe under the American standard ASTM A335/ASME SA335. It is designed for high-temperature and high-pressure environments below 540℃. It

