Free-cutting structural steel detection can be doneWhat are the testing items and standards for free-cutting structural steel?How to charge for the tensile strength testing of free-cutting structural steel?How long does it take for a report to be released for the inspection of free-cutting structural steel?Foshan Huajin's third-party material testing laboratory can provide all kinds of free-cutting structural steel testing services, including quality testing, composition testing, hardness testing, metallographic, failure, tensile testing, salt spray testing, RoHS testing, etc. As a third-party testing center, the organization has CMA, CNAS certification and testing qualifications, complete testing equipment, scientific and reliable data, and can issue a nationally recognized free-cutting structural steel test report within 5-10 working days.
Free-cutting structural steel is a steel with one or more free-cutting elements (such as sulfur, lead, bismuth, calcium, selenium, etc.) added to the carbon structural steel, which has excellent cutting performance. Huajin Testing conducts comprehensive testing and analysis on the characteristics of free-cutting structural steel to ensure that its quality and performance meet relevant standards and customer requirements.
1. Chemical composition detection: Chemical composition is one of the important indicators of free-cutting structural steel, which directly affects its cutting performance and other mechanical properties. Huajin uses advanced chemical analysis methods to accurately determine the chemical composition of free-cutting structural steel, including carbon, silicon, manganese, phosphorus, sulfur, lead, bismuth, calcium, selenium and other elements. Through strict control of chemical composition, it ensures that the free-cutting structural steel has good machinability and mechanical properties.
2. Mechanical property testing: Mechanical properties are important indicators of free-cutting structural steel, including tensile strength, yield strength, elongation, impact toughness, etc. Huajin Testing adopts advanced tensile testing machines, impact testing machines and other equipment to conduct strict mechanical property testing on free-cutting structural steel. Through the analysis of test data, we can understand the mechanical properties of free-cutting structural steel under different stress states, and provide strong support for product design and manufacturing.
3. Metallographic structure detection: Metallographic structure is the characterization of the internal microstructure of free-cutting structural steel, which has an important impact on its cutting performance and other mechanical properties. Huajin Testing uses optical microscopes, scanning electron microscopes and other equipment to observe and analyze the metallographic structure of free-cutting structural steel. Through the detection of metallographic structure, the grain size, distribution and morphology of free-cutting structural steel, as well as whether there are defects and impurities inside, can be understood, which provides a strong guarantee for product quality control.
4. Surface quality inspection: The surface quality of free-cutting structural steel has an important impact on its cutting performance and service life. Huajin Testing uses advanced surface roughness measuring instruments, optical microscopes and other equipment to detect the surface quality of free-cutting structural steel. Through the detection of surface quality, the surface roughness, flatness and oxide thickness of free-cutting structural steel can be understood, which provides a strong guarantee for the quality control of products.
5. Dimensional accuracy detection: Dimensional accuracy is one of the important indicators of free-cutting structural steel, which directly affects its assembly and use performance. Huajin Testing uses advanced measuring equipment and methods to accurately measure the dimensions of free-cutting structural steel. Through the detection of dimensional accuracy, the dimensional deviation and geometric tolerance and other parameters of free-cutting structural steel can be understood, which provides a strong guarantee for the quality control of products.
6. Non-destructive testing: Non-destructive testing is an important means to ensure the quality and safety of free-cutting structural steel. Huajin Testing adopts non-destructive testing methods such as ultrasonic flaw detection and radiographic flaw detection to conduct comprehensive testing of free-cutting structural steel. Through non-destructive testing, defects such as cracks and porosity inside the steel can be found to ensure that there will be no accidents during the use of the product.
In short, Huajin Testing has rich experience and advanced technical equipment in the detection of free-cutting structural steel. We ensure that the quality and performance of free-cutting structural steels meet relevant standards and customer requirements through comprehensive testing and analysis of chemical composition, mechanical properties, metallographic structure, surface quality, dimensional accuracy and non-destructive testing. At the same time, we also provide customers with professional technical support and consulting services to help customers better understand and use free-cutting structural steel products.
What are the testing standards for free-cutting structural steels:
GB T 8731-2008 "Free-cutting Structural Steel".
GB T 3207-2008 Silver Steel.
GB T 702-2017 "Dimensions, Dimensions, Weights and Allowable Deviations of Hot Rolled Steel Bars".
GB T 908-2019 Forged steel rod size, shape, weight and allowable deviation.
GB T 14981-2009 "Dimensions, Weights and Allowable Deviations of Hot Rolled Rods".
GB T 905-1994 "Dimensions and Allowable Deviations of Cold Drawn Round Steel Wires, Square Steel Wires, Hexagonal Steel Wires, Shapes, Weights, and Allowable Deviations".
GB T 342-2017 "Dimensions, Shapes, Weights and Allowable Deviations of Hot Rolled Steel Plates and Steel Strips".
GB T 709-2019 "Dimensions, Shapes, Weights and Allowable Deviations of Cold-Rolled Steel Plates and Strips".
Free-cutting structural steel inspection and inspection process:
1. Fill in the application form: contact Huajin testing staff to confirm the testing standards and projects, and sign the power of attorney.
2. Arrange to send samples: send the samples by express or directly to our laboratory.
3. Product testing: After payment, the laboratory arranges testing and issues a draft report.
4. Confirm the draft report and issue a formal report.
5. Report bill delivery service, as well as report interpretation and after-sales service.
The above is the relevant introduction of Huajin Testing on the testing service of free-cutting structural steel, more about the inspection cost, standard, project, cycle and other issues of free-cutting structural steel can be consulted by consulting the engineer or calling us. (Test The testing cycle, method and steps are subject to the engineer, if the sample is special, you can communicate with the engineer about the particularity of the sample, and the institution can design a reasonable testing and analysis plan for you to save your time).