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01Apr, 2026
What is the difference between 9CR and 13Cr OCTG
API 5CT L80-13Cr and L80-9Cr are two steels with different chromium contents under the API 5CT L80 grade. In addition to the difference in chemical composition, they also differ in performance and app
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31Mar, 2026
What is the difference between ASTM A182 and A312
A182 and A312 are two specifications for different product types. A182 is for forged stainless steel parts, while A312 is for stainless steel pipes. The product types they address are completely diffe
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30Mar, 2026
What is the difference between J55 and L80 OCTG
API 5CT J55 and L80 belong to the same standard system, both being specifications for pipe threads, but they differ in many aspects such as chemical composition and mechanical properties.
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30Mar, 2026
What is the difference between J55 and K55 OCTG
API 5CT K55 and J55 are two grades of oil casing pipes in the same standard system. They are almost identical in chemical composition, but K55 has a higher tensile strength than J55. To a certain exte
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28Mar, 2026
api 5l x42 vs x52 pipeline for oil and gas
API 5L X52 and API 5L X42 are two different levels of pipeline pipes under the same standard system. API 5L X42 is a low-level pipe, while API 5L X52 is a medium-to-high-level pipe.
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06Feb, 2026
A335 P23 seamless steel pipe, as a high-performance chromium-molybdenum alloy steel pipe, has wide applications in high-temperature and high-pressure fields such as power, petrochemical, and boiler ma
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06Feb, 2026
What is A335 p12 material specifications
P12 seamless steel pipe, as a typical chromium-molybdenum alloy steel in the ASTM A335 standard, exhibits excellent performance in high-temperature and high-pressure environments due to its metallurgi
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06Feb, 2026
What is p12 material composition
P12 alloy pipe is a ferritic-based heat-resistant alloy steel pipe, mainly composed of chromium (approximately 1.25%) and molybdenum (approximately 0.5%), belonging to the P12 grade in the ASTM A335 s
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06Feb, 2026
What is p92 mechanical properties
P92 seamless steel pipes strictly adhere to ASTM A335/A335M-23 (Specification for Ferritic Alloy Steel Seamless Pipes for High-Temperature Applications), requiring dual heat treatment of normalizing a

