Hot-dip galvanized steel coil inspection**Can you do? What are the testing items and standards for hot-dip galvanized steel coils? How much does the tensile strength test of hot-dip galvanized steel coil cost? How long does it take for a hot-dip galvanized steel coil inspection report to come out? Foshan Huajin's third-party material testing laboratory can provide all kinds of hot-dip galvanized steel coil testing services, including quality testing, composition testing, hardness testing, metallographic, impact, tensile testing, salt spray testing, RoHS testing, etc. As a third-party testing center, the institution has CMA, CNAS certification and testing qualifications, complete testing equipment, scientific and reliable data, and can issue a nationally recognized hot-dip galvanized steel coil test report within 5-10 working days.
Hot-dip galvanized steel coil is a type of steel material with a zinc layer on the surface, also known as galvanized steel coil or hot-dip galvanized steel coil. Hot-dip galvanized steel coil is a semi-finished product after hot-rolled pickling or cold rolling, which is cleaned, annealed, and immersed in a molten zinc tank with a temperature of about 460 °C, and the steel sheet is coated with a zinc layer, and then quenched and tempered and chemically treated. Hot-dip galvanized steel coil has good corrosion resistance and long service life, and is widely used in construction, transportation, electric power, communication and other fields.
Hot-dip galvanized steel coil inspection is an important part of ensuring product quality and safety. Huajin testing agency has rich experience and advanced technology and equipment in hot-dip galvanized steel coil testing, and can provide customers with comprehensive and accurate testing services.
First, first of all, Huajin testing agency will test the appearance of hot-dip galvanized steel coils. Appearance quality is one of the important indicators to evaluate the quality of steel coils, through visual inspection and instrument measurement, you can find whether there are scratches, bulges, dents and other defects on the surface. At the same time, the dimensions of the coil are measured to ensure that it meets the relevant standards and the actual needs of the customer.
Second, secondly, Huajin testing agency will test the mechanical properties of hot-dip galvanized steel coils. Mechanical properties are an important index to measure the bearing capacity and safety of materials, and key parameters such as tensile strength, yield point, and elongation of steel coils can be obtained by means of tensile tests, bending tests, impact tests, etc. These data can reflect the mechanical properties and processing properties of steel coils, and provide a strong guarantee for the safety and reliability of products.
3. In addition, Huajin testing agency will also test the thickness of the galvanized layer of hot-dip galvanized steel coils. The thickness of the galvanized layer is an important factor affecting the corrosion resistance of steel coils, and the stability and uniformity of the galvanizing process can be evaluated by measuring the thickness of the galvanized layer in different parts. Huajin testing agency adopts advanced measuring equipment and technology, which can accurately measure the thickness of the galvanized layer on the surface and inside of the steel coil, and provide corresponding data analysis to provide strong support for customers' production and quality control.
4. Finally, Huajin testing agency will also test the corrosion resistance of hot-dip galvanized steel coils. Hot-dip galvanized steel coils are widely used in outdoor and humid environments, so their corrosion resistance is crucial. Huajin testing agency simulates the corrosion situation under different environmental conditions through salt spray test, damp heat test and other means, and conducts long-term corrosion resistance test on steel coils. Through these tests, customers can understand the corrosion resistance performance of steel coils in different environments, which provides an important basis for product selection and design.
5. In addition to the above-mentioned testing items, Huajin testing institutions can also conduct other related tests according to the needs of customers, such as chemical composition analysis, non-destructive testing, etc. These tests can further reveal the intrinsic properties and quality status of materials, providing customers with more comprehensive support for product development and quality control.
In short, hot-dip galvanized steel coil testing is an important part of ensuring product quality and safety. With rich experience and advanced technology and equipment, Huajin testing agency provides customers with comprehensive and accurate testing services. Through appearance inspection, mechanical property testing, galvanized layer thickness testing and corrosion resistance testing, customers can understand the quality status and performance of hot-dip galvanized steel coils, and provide an important basis for product selection and design. At the same time, Huajin testing agency also conducts other related tests according to customer needs to provide more comprehensive support for customers' product development and quality control. Choose Huajin testing agency to make the quality of your hot-dip galvanized steel coil more guaranteed!
What items are tested for hot-dip galvanized steel coils:
Specifically, the size and shape include the allowable deviation of width, allowable deviation of length, unevenness, allowable deviation of thickness, disorientation, sickle bending, etc.;
Chemical components include sulfur content, manganese content, phosphorus content, titanium content, aluminum content, niobium content, silicon content, carbon content, vanadium content, etc.;
Physical properties include tensile strength, elongation after break, r value, n value, tensile strain mark, baking hardening value, yield strength, coating adhesion performance, coating weight, coating surface structure, etc.;
Environmental properties include mercury content, cadmium content, lead content, hexavalent chromium content, etc.
Other items include coating thickness, coating adhesion, coating composition testing, substrate composition testing, hardness testing, environmental protection RoHS testing, etc.
How much is hot-dip galvanized steel coil testing:
The specific cost of hot-dip galvanized steel coil testing varies depending on the testing items, testing methods, testing institutions and other factors. Generally speaking, the testing cost of hot-dip galvanized steel coil ranges from a few hundred yuan to several thousand yuan. The specific cost needs to be negotiated according to the actual needs and the selected testing institution.
Hot-dip galvanized steel coil testing 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 hot-dip galvanized steel coil testing services, more about hot-dip galvanized steel coil testing costs, standards, projects, cycles and other issues can be consulted by consulting ** engineer or call 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).