GB/T 24245-2009Steel cord for rubber track (English PDF)
橡胶履带用钢帘线
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 15, 2009
Implementation date
April 1, 2010
Scope
GB/T 24245-2009 is the English-translated version of 橡胶履带用钢帘线.
GB/T 24245-2009 is the Chinese national product standard for the brass-plated steel cord used to reinforce the skeleton of rubber tracks.
It defines the terms used for the cord and its elements, such as filament, strand, core and compact cord, and sets out how cords are classified, coded and marked, what an order must state, and the dimensions, weights and permitted deviations.
It also covers the technical requirements, the test methods, the inspection rules and the packaging, labelling, storage and quality certificate. Its references include GB/T 2104 on packaging and marking of steel rope, GB/T 10561 on non-metallic inclusions, GB/T 24242.2 on wire rod and YB/T 135 on the brass coating weight.
Normative annexes A to C support the requirements. It was issued on 15 July 2009 and has applied since 1 April 2010.
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Document preview — GB/T 24245-2009
National Standard of the People's Republic of China
- ICS
- 77.140.65
- Classification
- H 49
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
Foreword
The Standard Appendix A, Appendix B and Appendix C are normative appendix; Appendix D is an informative annex. The standard proposed by China Iron and Steel Association.
1 Scope
This standard specifies the rubber track with Steel Cord (hereinafter referred to as cord) terms and definitions, classifications, code, marking method, the order within Capacity, size, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, labeling, storage and quality certificate.
This standard applies to the rubber track skeleton reinforced with brass-plated steel cord material.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 2104 General provisions rope packaging, marking and quality certificate
GB/T 10561 Steel - Determination of content of nonmetallic inclusions - Micrographic method standards diagrams
GB/T 24242.2 silk non-alloy steel wire rod - Part 2: general purpose wire rod
YB/T 135 copper wire plating weight and test methods for components
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1 Filament
In shares or as a separate element of the steel cord wire.
3.2 Wrap
Form a spiral wound on the cord of a monofilament.
3.3 Strand
Together by a group of filaments twisted together, the structure twisted into spiral one or more layers formed.
3.4 Core
As extending axis so that other units can be wound thereon one or several filaments or strands on.
3.5 Steel cord
Composed of two or more than two filaments, or of shares with monofilament or twisted into the stocks and shares of various structural products.
3.6 Gap
Monofilament between cyclical gap, wherein the rubber to penetrate a steel cord.
3.7 Compact cord
By a group of filaments in the same direction and the same twist lay length twisted and made to have a minimum cross-section of the steel cord.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 2104General rules for the packing, marking and quality certificates of steel wire ropes
- GB/T 10561Determination of content of nonmetallic inclusions in steel - Micrographic method using standard diagrams
- GB/T 24242.2Non-alloy steel wire rod for conversion to wire - Part 2: Specific requirements for general purpose wire rod
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Related Standards
GB/T 10561-2023 — Determination of content of nonmetallic inclusions in steel - Micrographic method using standard diagrams
GB/T 2104-2025 — General rules for the packing, marking and quality certificates of steel wire ropes
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