We Super Steel Manufacturing Co.,Ltd(SMC) are amongst the top manufacturers and suppliers for the seamless steel pipe, welded steel pipe, OCTG products and fittings from China. We have been manufacturing and supplying these products to the industry since 1993, and received repeat orders and appreciation from our valued customers.
High quality piping products from approved manufacturers.
In order to continuously improve our offerings to our clients, we have consistently improved and upgraded our manufacturing facility and can hence offer material with stringent requirements.
Over the years, Super Steel Manufacturing Co.,Ltd(SMC) has developed an enviable reputation for project management for the Oil & Gas, Construction, Power Energy, Marine & Offshore, Water Treatment, Exploration & Drilling Services, Pipeline & Petrochemical and other heavy industries.
The many years of experience that we have means that there is always someone who has the ability to carry a project forward.
Always up to date. In this column you can find the steel pipe related articles, including industry trends, product standards and materials, and some technical guidelines.
To ensure the quality and reliability of API 5CT tubing and casing, a series of rigorous tests and inspections are conducted throughout the production process. These tests help verify the structural integrity, mechanical properties, and overall performance of the steel pipes under various conditions.
Super Steel Manufacturing Co.,Ltd is professional API 5CT tubing and casing manufacturer, for more details, please contact:sales@super-steels.com
API 5CT Hydrostatic Test
The hydrostatic test is a crucial step in the production of welded steel pipes, designed to check whether the welds can withstand the required water pressure without cracking, leakage, or other failures. This test is not a one-time assessment; instead, the pipeline undergoes multiple rounds of rigorous testing. If any defects are detected, immediate repairs are required, followed by re-inspection. This process ensures that the pipes meet the necessary performance standards for operation in high-pressure environments.
API 5CT Bend Test
The bend test evaluates the weld quality of API 5CT tubing and casing by assessing its plasticity and bending resistance. During this test, a sample pipe is subjected to a bending force ranging from 90 to 180 degrees. The pipe is then inspected for cracks, deformations, or other defects. If no cracks are found, the pipe meets the quality standard. If defects appear, the sample must be replaced, ensuring that only pipes with adequate flexibility and durability proceed to final production.
API 5CT Flattening Test
The flattening test determines a pipe’s resistance to longitudinal deformation (such as crack expansion) and its ability to maintain structural integrity under stress. During the test, a sample is placed in a specialized machine, where axial pressure is applied to flatten it under controlled conditions. The surface is then examined for cracks or defects. If the sample remains intact, it is considered qualified according to API 5CT standards.
API 5CT CVN Impact Test
The Charpy V-Notch (CVN) impact test is a quality control measure used to evaluate a material’s toughness and ability to withstand sudden impact forces. A shock tester applies force to a sample, measuring the absorbed energy and recording fracture morphology. Key test areas include the pipe body, welds, and heat-affected zones. The API 5CT CVN impact test is particularly important for assessing the performance of steel pipes in low-temperature environments, ensuring they meet strength and durability requirements for long-term use.
By conducting these comprehensive tests, manufacturers can guarantee that API 5CT tubing and casing meet industry standards, ensuring reliability in demanding oil and gas applications.
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