The testing cycle of BAIJIAN is 7-14 working days, and the specific time period needs to be determined based on the sample testing items, standards, and the location of the laboratory. If you have urgent needs, based on the actual situation and within the feasible range, we can arrange expedited services for you and update the quotation after expedited
Inspection Standards:
GB/T 1231-2006 Technical Conditions for High Strength Large Hexagon Head Bolts, Large Hexagon Nuts, and Washers for Steel Structures
Scope of Application:
This standard is applicable to friction type high-strength bolt connections for railway and highway bridges, boiler steel structures, industrial plants, high-rise civil buildings, tower and mast structures, lifting machinery, and other steel structures.
The following standards are cited
GB/T 2-2016 Fasteners - End of External Thread Parts
GB/T 90.1-2002 Fastener Acceptance Inspection
GB/T 196-2003 General Thread Basic Dimensions
GB/T 197-2018 General Thread Tolerances
GB/T 228.1-2010 Metallic Materials - Tensile Testing - Part 1: Room Temperature Test Methods
GB/T 228.2-2015 Metallic Materials - Tensile Testing - Part 2: High Temperature Test Methods
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