Yield strength: refers to the yield limit of a metal material when yielding occurs, which is the stress that resists minimal plastic deformation. For metal materials without obvious yield, the stress value that produces 0.2% residual deformation is specified as its yield limit, which is called the conditional yield limit or yield strength. External forces greater than this limit will cause permanent failure of the parts and cannot be restored. If the yield limit of low-carbon steel is 207MPa, under the action of external forces greater than this limit, the part will undergo permanent deformation. If it is less than this limit, the part will return to its original appearance (1) For materials with obvious yield phenomena, yield strength is the stress at the yield point (yield value)
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China