This standard specifies the classification、 size、 appearance、 weight、 allowable deviation、 ordering content、 technical requirements、 test methods、 inspection rules、 packaging、 marking、 and quality certificate of hot-dip galvanized steel strand. This standard applies to hot-dip galvanized steel strands (hereinafter referred to as steel strands) used for overhead power ground wires、 communication cables、 hangers、 suspension、 anchoring、 and fixed objects. The following normative references are essential for the application of this document. For dated references、 only the dated version applies to this document. For undated references、 the latest version (including all modification orders) applies to this document. GB/T 228.1 Metallic Materials Tensile Testing Part 1: Room Temperature Test Methods GB/T 239 Metallic Wire Torsion Test Methods GB/T 470 Zinc Ingots GB/T 1839 Steel Products Zinc Coating Quality Test Methods GB/T 2104 Steel Wire Rope Acceptance、 Packaging General provisions for markings and quality certificates GB/T 2976 Metallic materials - Wire winding test GB/T 4354 High quality carbon structural steel hot-rolled wire rods GB/T 8358 Steel wire rope fracture tensile test method GB/T 24242.2 Non alloy steel wire rods for wire production - Part 2: General purpose wire rods
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 problemsinspection 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