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ASTM D 2969 : 2025

Current

Current

The latest, up-to-date edition.

Standard Test Methods for Steel Tire Cords

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

02-01-2025

Committee
D 13
DocumentType
Test Method
Pages
17
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

1.1These test methods cover the testing of cords made from steel that are specifically designed for use in the reinforcement of pneumatic tires. By agreement, these test methods can be used to test similar cords or filaments used for reinforcing other rubber products. The steel cords shall be wound on spools or beams. The steel cords can also be woven into fabric, in which case they must be removed from the fabric prior to testing.

Note 1:For other methods of testing tire cords and tire cord fabrics, refer to Methods D885, Test Methods D1871, Specifications D122, and Test Methods D2692 and D2970/D2970M. For tolerances on tire cords and tire cord fabrics, refer to Specifications D122 and Methods D885.

1.2These test methods include test procedures only; they do not establish specifications or tolerances.

1.3This test method includes the following sections:

Subject

Section

Adhesion of Steel Cords and Filaments to Elastomers

16

Brass Coating Composition and Mass

14, 15

Breaking Force (Strength)

10

Construction

12

Data Form for Reporting Test Results

Appendix X1

Elongation at Break

10

Elongation Between Defined Forces (EDF)

11

Flare

8

Lay

12

Linear Density

9

Visual Appearance

8

Nomenclature System

Annex A1

Residual Torsions

8

Straightness

8

Thickness and Out-of-Roundness

13

1.4This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See 14.3 and Note 11.

1.5The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D 6477 : 2023 Standard Terminology Relating to Tire Cord, Bead Wire, Hose Reinforcing Wire, and Fabrics
ASTM D 6320/D6320M : 2024 Standard Test Methods for Single Filament Hose Reinforcing Wire Made from Steel

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