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GB/T9948 12Cr9Mo Alloy Seamless Steel Tubes for Petroleum Cracking
1. Product Description: GB/T9948 12Cr9Mo Alloy Seamless Steel Tubes are specifically engineered for use in the petroleum refining industry, particularly within cracking processes. These tubes are manufactured from an alloy steel that provides exceptional resistance to corrosion, high temperatures, and the pressures encountered in cracking units. The seamless design ensures a uniform wall thickness and superior structural integrity, which is critical for maintaining safety and efficiency in high-pressure environments.
2. Product Parameters:
Parameter
Description
Grade
GB/T9948 12Cr9Mo
Material
Alloy Steel (Seamless)
Standard
GB/T9948
Size Range
Various diameters and wall thicknesses as per GB/T9948
Length
Standard lengths, customizable upon request
Ends
Plain ends, beveled ends, threaded, or socket-weld ends
Surface Treatment
As-rolled, annealed, or normalized
3. Mechanical Properties:
Property
Typical Requirements
Tensile Strength
≥415 MPa (60,000 psi)
Yield Strength
≥240 MPa (35,000 psi)
Elongation
≥20% in 50 mm (2 in) or 4D, whichever is greater
Hardness
Varies depending on heat treatment
4. Chemical Composition:
Element
Typical Range (%)
Carbon
0.08 - 0.16
Chromium
8.00 - 10.00
Molybdenum
0.40 - 0.60
Manganese
≤1.00
Phosphorus
≤0.025
Sulfur
≤0.025
5. Product Applications:
Petroleum Cracking: Used in cracking furnaces for the production of lighter hydrocarbons.
Heat Exchangers: Ideal for use in heat exchangers within refineries.
Pressure Vessels: Suitable for construction of high-pressure vessels in the petrochemical industry.
Pipelines: Employed in pipelines that transport high-temperature and high-pressure fluids.
6. Product Advantages:
Seamless Construction: Ensures no weak points and provides a consistent material structure.
High-Temperature Resistance: Alloy steel composition offers excellent resistance to the high temperatures found in cracking processes.
Corrosion Resistance: The addition of chromium and molybdenum enhances the tubes' resistance to corrosion.
Pressure Resistance: Designed to withstand the high pressures encountered in petroleum refining.
Long Service Life: Built to last with minimal maintenance, reducing downtime and replacement costs.
7. Conclusion: GB/T9948 12Cr9Mo Alloy Seamless Steel Tubes for Petroleum Cracking are a reliable choice for the demanding conditions of the petroleum refining industry. Their seamless construction, alloy composition, and adherence to GB/T9948 standards ensure that these tubes provide a durable and efficient solution for high-pressure and high-temperature applications. These tubes contribute to the safety and efficiency of petroleum cracking processes, making them an asset to any refinery.
Cangzhou Baoyang Pipeline Equipment Co., Ltd. is located in Hope New District, Mengcun County, Hebei Province, China's pipeline equipment base. The company was founded in 2018 with a registered capital of 10 million yuan. It is an enterprise integrating steel pipe spot warehousing,... Cangzhou Baoyang Pipeline Equipment Co., Ltd. is located in Hope New District, Mengcun County, Hebei Province, China's pipeline equipment base. The company was founded in 2018 with a registered capital of 10 million yuan. It is an enterprise integrating steel pipe spot warehousing,...
