Where is stress oriented testing going? Baijian.com can provide corresponding testing services. As a third-party testing platform, Baijian.com can customize corresponding testing items and standards for each customer. The reports issued are true and effective, and can be issued within 7-15 working days. It supports scanning codes to check authenticity and provides nationwide on-site sampling and sample sending services. The testing cycle is short, the testing cost is low, and the testing data is scientific and accurate

Testing cycle: 7-15 working days

Testing cost: Engineers develop experimental plans and provide quotations based on customer testing needs and experimental complexity.

Scope of stress guided testing: anchor cables, steel strands, anchor rods, turbine blades, various types, etc Introduction to Stress Oriented Hydrogen Induced Cracking (SOHIC) Project: The stress oriented hydrogen induced cracking experiment evaluates the cracking sensitivity of carbon steel in an environment of hydrogen sulfide aqueous solution. The SOHIC experiment conducted according to the NACE TM0103 standard is a more rigorous corrosion resistance evaluation method than the SSC experiment When carbon steel plates used in welding pressure vessels work in wet hydrogen sulfide environments, they may suffer from one or more forms of environmental cracking These cracks include: (1) Sulfide stress corrosion cracking (SSC) in high hardness welds and heat affected zones (2) Hydrogen induced cracking (HIC) of the base metal (3) Stress directed hydrogen induced cracking (SOHIC) The selection of stress oriented testing methods

(1) The anisotropy of materials regarding mechanical properties and environmental cracking sensitivity is an important parameter. Specific factors in the sample may involve rolling direction, stress direction, and welding direction in the sample, all of which are related to the considerations required for manufacturing equipment (2) The current generated between different metals can affect cracking sensitivity. Electric coupling increases the severity of hydrogen absorption in steel, thereby increasing its cracking sensitivity (3) The test temperature affects the sensitivity to cracking. Most laboratory evaluations are conducted in acidic solutions at room temperature, causing cracking in sensitive steel. However, in some cases, alkaline hydrogen sulfide environments and/or moderate temperature increases may increase or decrease the efficiency of hydrogen absorption, thereby affecting the sensitivity of steel to cracking beyond the expectations of standard laboratory tests (4) Different test methods may not necessarily provide the same order of material sensitivity (5) Local multiphase properties of materials (such as local slag inclusion and impurity segregation, as well as the number and morphology of non-metallic inclusions) can affect the test results (6) Due to the fact that a longer immersion time or a larger number of specimens may lead to material failure below the threshold of apparent stress, it is clearly necessary to consider the specific test cycle corresponding to the threshold value of cracking sensitivity (7) Most experiments that promote cracking phenomena in the environment can be expressed using statistics and/or various variables. It may be necessary to repeat the experiment to obtain a representative value that can characterize the crack resistance performance in the test environment (8) Some specimens are more suitable than others for measuring the crack resistance in local areas (such as near surface or other features, welding areas, etc.). In addition, it may be necessary to obtain stress data corresponding to the failure time. In other cases, experimental measurements of internal cracking are more desirable and useful (9) Generally, the full penetration test of the specimen is more rigorous than the single-sided exposure test, and can more directly simulate the exposed surface morphology in pressure vessels, pipelines, and flow pipelines (10) The immersion time of most laboratory tests is relatively short, making it impossible to fully produce maximum cracking in any given steel, but it is sufficient for comparing different materials What are the functions of the Baijian.com test report? What problems can I help you solve< p> 1. Sales use. (Selling one's own products and issuing third-party testing reports to make customers more confident in the quality of their products)

2. Research and development for use. During the research and development process, when encountering some challenging problems, we can solve them by testing report data, thereby shortening the research and development cycle and reducing research and development costs. 3. Improve product quality. (By comparing the testing data, identify the problems with one's own product, improve product quality, and reduce production costs)

4. Use of research paper data

5. Competitive bidding and bidding use (the testing cycle of Baijian.com is relatively short, the testing cost is low, and the recognition is relatively high, which is particularly suitable for bidding use)

Stress guided hydrogen induced cracking SOHIC method and standard test method test standard double beam (DB) test NACE TM 0103-2003 NACE TM0177A method NACE TM 0103-2003 What are the advantages of Baijian.com testing?

? Why choose BAIJIAN< p> 1. BAIJIAN is a collectively owned testing institution 2. Free initial inspection, no testing fees will be charged during the initial inspection period 3. Multiple laboratory branches across the country support on-site sampling/sample testing 4. Short detection cycle, high detection cost, and complete experimental plan 5. Complete qualifications, complete laboratory instruments, and a strong research team 6. Support writing MSDS services in 36 languages. 1. Send samples. 2. Free initial inspection. 3. Quotation. 4. Both parties confirm and sign a confidentiality agreement to start the experiment. 5. Complete the experiment within 7-15 working days. 6. Issue a testing report and provide post service The above is an introduction to stress oriented testing. For more testing needs, please feel free to call our testing engineers at any time.