GB/T 25820-2025 English PDF

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GB/T 25820-2025: Steel strapping for packaging
Status: Valid

GB/T 25820: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 25820-2025	439	Add to Cart	4 days	Steel strapping for packaging	Valid
GB/T 25820-2018	140	Add to Cart	Auto, < 3 mins	Steel strip for packing	Valid
GB/T 25820-2010	399	Add to Cart	3 days	Steel strips for packing	Obsolete

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Basic data

Standard ID: GB/T 25820-2025 (GB/T25820-2025)
Description (Translated English): Steel strapping for packaging
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H46
Classification of International Standard: 77.140.50
Word Count Estimation: 22,233
Date of Issue: 2025-03-28
Date of Implementation: 10/1/2025
Older Standard (superseded by this standard): GB/T 25820-2018
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 25820-2025: Steel strapping for packaging

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 77.140.50 CCSH46 National Standard of the People's Republic of China Replaces GB/T 25820-2018 Packaging steel strap (ISO 24259.2022,MOD) Released on 2025-03-28 2025-10-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document replaces GB/T 25820-2018 "Steel strapping for packaging". Compared with GB/T 25820-2018, except for structural adjustments and editorial In addition to the modifications, the main technical changes are as follows. a) The brand designation method has been deleted (see 3.1 of the.2018 edition); b) Added the terms and definitions of “steel strip, camber, straightness and twist” (see Chapter 3); c) Added the surface classification "bright" and adjusted the "galvanized" surface to "electro-galvanized" (see 4.2, 3.2.2 of the.2018 edition); d) 4.2 adds surface notes and adjusts the coating thickness to “not less than 0.5 μm” (see 4.2, 6.2.1 of the.2018 edition, 6.2.2); e) Added the English abbreviations of each category; adjusted the "Surface State and Winding Method Definitions to Appendix C" (see 4.1, 4.2, 4.3,.2018 Version 3.2.2, 3.2.3); f) Adjust “Order Content” to “Order Information” and delete the “Brand Number” requirement (see Chapter 9, Chapter 4 of the.2018 edition); g) Deleted 1.0×19, 1.0×25.4, 1.2×40 specifications, added 0.7×31.75, 1.27×31.75, 1.45×31.75, 1.2× 50, 1.27×50, specifications (see 5.1, 5.1 of the.2018 edition); h) Adjust the thickness deviation to ±0.035mm and the width deviation to ±0.10mm (see 5.2, 5.2 and 5.3 of the.2018 edition); i) The welding requirements have been deleted, welding joints are not allowed, and the requirements for rewinding weight and roll dimensions have been added (see 5.5,.2018 edition). 5.5); j) The thickness of ultra-high strength 1150MPa, 1250MPa and 1350MPa grades is adjusted to 1.0mm~1.45mm (see 5.1, Table 4 of the.2018 edition); k) The annotation on the requirements for tensile ratio specimens of 1150MPa, 1250MPa and 1350MPa has been deleted (see Table 4 of the.2018 edition); l) Added requirements for coating, zinc spangles and glossiness of galvanized steel strip (see 6.2.3); m) The requirement for delivery with defects has been deleted (see 6.4.3 of the.2018 edition); n) Added gloss inspection requirements (see 7.1); o) Added the requirements for the length of tensile test specimens and the digital display requirements for gauge length measuring equipment (see 7.3); p) Added “Table 9” gloss test method requirements (see Table 9, Table 5 of the.2018 edition); q) The finished product packaging was adjusted to Appendix F (see Appendix F, Chapter 8 of the.2018 edition); r) Adjusted the acceptance and re-inspection requirements (see 7.6, 7.7 of the.2018 edition); s) "Appendix D Repeated Bending Performance", the bending radius is adjusted to R = 5mm, and a repeated bending test diagram is added (see Appendix D, Appendix A of the.2018 edition). This document is modified to adopt ISO 24259.2022 "Steel strapping for packaging". Compared with ISO 24259.2022, this document has many structural adjustments. Comparison table of structural number changes between the two documents See Appendix A. This document has many technical differences compared to ISO 24259.2022. A single line (|) is used to indicate these technical differences. A list of these technical differences and their reasons is given in Appendix B. The following editorial changes were made to this document. 1) Added Appendix D (Informative) D.1 Test specimen requirements; 2) Change the bending radius R in Table D.1 of Appendix D (Informative) from 3mm to 5mm; 3) The requirements on the number of strapping tapes and strapping layout in Appendix F (Informative) F.2.2 and F.2.3 have been deleted. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Iron and Steel Association. This document is under the jurisdiction of the National Technical Committee on Steel Standardization (SAC/TC183). This document was drafted by. Anshan Falan Co., Ltd., Metallurgical Industry Information Standards Research Institute, Wuxi Fangzheng Metal Strapping Co., Ltd., Shenzhen Xiloode Technology Co., Ltd. and Shijiazhuang Ziqi Mechanical and Electrical Equipment Technology Co., Ltd. The main drafters of this document are. Wang Endong, Lu Qian, Li Qian, Wang Hong, Zhou Xinqiang, Lin Yang, Bao Zehe, Cui Zhe, Song Yang, Tian Zijian, and Sun Menghan. The previous versions of this document and the documents it replaces are as follows. ---First published in.2010 as GB/T 25820-2010, first revised in.2018, and this is the second revision. Packaging steel strap

1 Scope

This document specifies the classification, size, shape and deviation, technical requirements, inspection and testing, marking, ordering information, transportation and other aspects of steel strapping for packaging. And requirements for numerical rounding, etc. This document applies to steel strips for packaging in the fields of metal materials, glass, light industrial products, logistics and transportation (hereinafter referred to as "steel strips").

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 228.1 Tensile tests on metallic materials - Part 1.Test methods at room temperature (GB/T 228.1-2021, ISO 6892-1. 2019, IDT) GB/T 235 Metallic sheet and strip repeated bending test method (GB/T 235-2013, ISO 7799.1985, MOD) GB/T 247 General provisions for packaging, marking and quality certification of steel plates and steel strips GB/T 8170 Rules for rounding off values and expression and determination of limit values GB/T 10125 Artificial atmosphere corrosion test Salt spray test (GB/T 10125-2021, ISO 9227.2006, IDT)

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Steel strapping for packaging Carbon steel or alloy steel is heat-treated and used for manual or automatic mechanical bundling of industrial products during bundling, reinforcement, connection and transportation. Metal steel belt. 3.2 sickle camber The maximum deviation of the edge from a straight line when measuring on the concave edge of a steel strip. 3.3 Flatness The maximum distance between the lower surface of the steel belt and the horizontal plane. 3.4 Twist The maximum inclination angle between the lower surface of the steel belt and the horizontal plane. ......

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