12Cr1MoV alloy tube
12Cr1MoV alloy pipe is based on high-quality carbon structural steel, with one or several alloy elements appropriately added, thereby improving its mechanical properties, toughness and hardenability. Products manufactured using 12Cr1MoV alloy pipe usually require heat treatment. Exported parts must be tempered or surface chemically treated before use.
15CrMoG alloy tube
15CrMoG alloy pipe specifications: 8-1240×1-200mm, mainly used for heating surface pipes of low and medium pressure boilers (working pressure is generally not greater than 5.88Mpa, working temperature is below 450°C); used for high-pressure boilers (working pressure is generally below 9.8Mpa or above, working temperature between 450℃ and 650℃) heating surface pipes, economizers, superheaters, reheaters, petrochemical industry pipes, etc.
A335P22 production process
A335P22 is the material standard for seamless tubes. The process flow is: round tube blank → heating → perforation → heading → annealing → pickling → oiling (copper plating) → multi-pass cold drawing (cold rolling) → billet tube → heat treatment → Straightening → hydraulic test (flaw detection) → marking → storage.
P91 alloy pipe
P91 alloy pipe is rolled from a solid tube blank after perforation. It is rolled from ordinary carbon structural steel, low alloy structural steel or alloy structural steel. It has the largest output and is mainly used as pipes or structural parts for conveying fluids. Therefore, depending on the carbon content, heat treatment process and use, this type of steel can be roughly divided into three types: carburizing, quenched and tempered and nitrided steel.
Among the many alloy pipe models, 12Cr1MoVG, P91, A335p22, and 15CrMoG alloy pipes can be said to be the most widely used in the alloy pipe industry.
