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GB/T 25820-2018Steel strip for packing (English PDF)

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

May 14, 2018

Implementation date

February 1, 2019

Scope

GB/T 25820-2018 (Steel strip for packing) is available as an English-translated PDF.

GB/T 25820-2018 — This Standard specifies the designation and classification, ordering content, dimensions, shapes and allowable deviations, technical requirements, inspection and test, packaging, marking, transportation and quality certification for steel strips for packing. This Standard applies to steel strips for the strapping use for packing for metal materials, glass, light industrial products, logistic transportation and so on (hereinafter referred to as strapping strips).

Document preview — GB/T 25820-2018

National Standard of the People's Republic of China

Issued by: SAMR; SAC

Foreword3
1 Scope5
2 Normative references5
3 Designation and classification5
4 Ordering content6
5 Dimensions, shapes and allowable deviations7
6 Technical requirements8
7 Inspection and test10
8 Finished product packing11
9 Marking14
10 Transportation14
11 Quality certification15
12 Rounding off of numerical value15
Annex A (Informative) Reverse bend property of strapping strips16
Annex B (Normative) Definition and measuring method of the shape of strapping strips17

1 Scope

This Standard specifies the designation and classification, ordering content, dimensions, shapes and allowable deviations, technical requirements, inspection and test, packaging, marking, transportation and quality certification for steel strips for packing.

This Standard applies to steel strips for the strapping use for packing for metal materials, glass, light industrial products, logistic transportation and so on (hereinafter referred to as strapping strips).

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition dated applies to this document. For undated references, the latest edition of the referenced documents (including all amendments) applies to this document.

GB/T 228.1, Metallic materials - Tensile testing - Part 1.Method of test at room temperature

GB/T 235, Metallic materials - Sheet and strip - Reverse bend test

GB/T 247, General rule of package mark and certification for steel plates (sheets)

and strips

GB/T 8170, Rules of rounding off for numerical values & expression and judgement of limiting values

GB/T 10125, Corrosion tests in artificial atmospheres - Salt spray tests

GB/T 17505, Steel and steel products - General technical delivery requirements

3 Designation and classification

3.1 Designation

The designation of strapping strips consists of minimum tensile strength value and Chinese Pinyin initials “KD” of “strapping strip”.

Example. 830KD.

830 - specified minimum tensile strength, in MPa;

KD - Chinese Pinyin initials of “strapping strip”.

3.2 Classification

3.2.1 They are classified into the following based on the strength.

a) ordinary strapping strips. 830KD and 880 KD;

b) high-strength strapping strips. 930KD and 980KD;

c) ultrahigh-strength strapping strips. 1150KD, 1250KD and 1350KD.

3.2.2 They are classified into the following based on the surface condition.

a) blued. referring to that the surface of finished products includes an oxidation film and a wax protective layer.

b) painted. referring to that the surface of finished products includes paint and a wax protective layer.

c) galvanized. referring to that the surface of finished products includes zinc (zinc alloy) and a wax protective layer.

3.2.3 They are classified into the following based on the coiling method.

a) simplex coiling (hereinafter referred to as simplex). a coiling method in which the coiling centre is fixed during the coiling of finished products.

b) duplex coiling (hereinafter referred to as duplex). a coiling method in which the coiling centre reciprocates to an agreed distance along an axis.

4 Ordering content

Contracts or orders based on this Standard shall include the following content.

a) designation;

b) a reference to this Standard;

c) dimensions;

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 235 · GB/T 17505

Cited by

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