BAIJIAN - Third party testing organization
Baijia.net specializes in steel strand testing、 and our platform's testing institutions cover the entire testing industry. Online one-on-one service. The test report is delivered on time and with good quality、 and you can enjoy the report delivery service. On the Baijian platform、 customers can complete the inspection process online from ordering services、 submitting commission information、 and finally paying the inspection fee、 without leaving the house. Next、 I will briefly introduce the testing standards and process of Baijia.net for steel strand testing
Steel strand detection range
Prestressed steel strand、 galvanized steel strand、 unbonded steel strand、 steel clad twisted pair、 bridge steel strand、 corrosion-resistant steel strand、 galvanized steel strand、 copper clad steel strand、 unbonded steel strand、 tensioned steel strand、 etc
Steel strand testing items
Elastic modulus testing、 entry testing、 tensile rate testing、 stress relaxation performance testing、 fatigue performance testing、 oblique tensile testing、 tensile strength testing、 coating adhesion testing、 torsion testing、 industrial problem diagnosis、 failure analysis、 surface coating quality testing、 static load testing、 elongation testing、 elongation testing、 stress relaxation testing、 polarographic analysis、 acid immersion testing、 Sulfur print test、 fracture inspection、 metallographic microscope inspection、 decarburization layer measurement、 grain size detection、 non-metallic inclusion detection in steel、 chemical composition segregation detection in steel、 hardenability test、 weldability detection、 cutting performance detection、 wear test、 metal repeated bending test、 metal torsion/winding/fracture/cupping test、 elastic modulus detection、 thermal expansion coefficient detection、 resistance value detection、 intergranular corrosion detection、 oxidation resistance detection、 Gas corrosion testing、 residual stress testing、 yield point testing、 tensile strength testing、 high-temperature creep testing、 endurance strength limit testing、 endurance section shrinkage testing、 relaxation rate testing、 fatigue and skewed tensile testing、 static load testing、 etc
Steel Strand Inspection Standards
GB/T 20492-2019 Zinc 5% Aluminum Rare Earth Alloy Coated Steel Wire Steel Strand
GB/T 24238-2017 Hot Rolled Wire Rods for Prestressed Steel Wire and Steel Strand
GB/T 33026-2017 High Strength Steel Strand for Building Structure
GB/T 33363-2016 Hot Dip Galvanized Steel Strand
GB/T 31314-2014 Multi wire Large Diameter High Strength Low Relaxation Prestressed Steel Strand
GB/T 5224-2014 Steel Strand for Prestressed Concrete
GB/T 30826-2014 Cable Stayed Bridge Steel Strand
Strand pulling technique Technical ConditionsGB/T 25821-2010 Stainless Steel Strand
GB/T 25823-2010 Single Wire Coated Epoxy Coated Prestressed Steel Strand
GB/T 21073-2007 Epoxy Coated Seven Wire Prestressed Steel Strand
JG/T 161-2016 Unbonded Prestressed Steel Strand
JG/T 387-2012 Epoxy Coated Prestressed Steel Strand
JG/T 369-2012 Slow Bonded Prestressed Steel StrandYB/T 152-1999 high-strength Low relaxation prestressed hot-dip galvanized steel strand
YB/T 146-1998 Hot rolled wire rods for prestressed steel wire and strand
ACI 423.4R-1998 Corrosion and Repair of Unbonded Single Strand Steel Strand
ACI 423.6/423.6R-2001 Specification and Instructions for Unbonded Single Strand Steel Strand
ASTM A416/A416M-2012 Specification for Uncoated Seven Strand Steel Strand for Prestressed Concrete
ASTM A779/A779M-2010 Plating Specification for seven strand stranded steel wire with layer、 density、 and stress release
ASTM A882/A882M-2004a (2010) filled epoxy coating seven strand prestressed steel wire specification
ASTM A886/A886M-2010 stress relieved seven strand toothed steel wire specification for prestressed concrete
ASTM A910/A910M-2010 Uncoated prestressed concrete Specification for 2 and 3 Strand Steel Strands without Welds
ASTM A981/A981M-2011 Test Method for Evaluating the Bond Strength of 270 Grade Uncoated 15.2mm (0.6in) Diameter Prestressed Steel Strands for Underground Anchorage Devices
ASTM A1061/A1061M-2009 Test Method for Multiwire Steel Strands
ASTM B500/B500M-2012 Standard Specification for Metal Coated Steel Strand Cores for Elevated Electrical Conductors
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