SAE J2721-2011 PDF

Scope: This document establishes recommended practices to validate acceptable corrosion performance of metallic components and assemblies used in medium truck, heavy truck, and bus and trailer applications. The focus of the document is methods of accelerated testing and evaluation of results. A variety of test procedures are provided that are appropriate for testing components at various locations on the vehicle. The procedures incorporate cyclic conditions including corrosive chemicals, drying, humidity, and abrasive exposure. These procedures are intended to be effective in evaluating a variety of corrosion mechanisms as listed in Table 1. Test duration may be adjusted to achieve any desired level of exposure. Aggravating conditions such as joint rotation, mechanical stress, and temperature extremes are also considered. This document does not address the chemistry of corrosion or methods of corrosion prevention. For information in these areas, refer to SAE J447 or similar standard.

SAE J2721-2011 Referenced Document

ASTM B117-11 Standard Practice for Operating Salt Spray (Fog) Apparatus*， 2024-04-19 Update
ISO 10062:1991 Corrosion tests in artificial atmosphere at very low concentrations of polluting gas(es)
ISO 11306:1998 Corrosion of metals and alloys - Guidelines for exposing and evaluating metals and alloys in surface sea water
ISO 11463:1995 Corrosion of metals and alloys - Evaluation of pitting corrosion
ISO 11474:1998 Corrosion of metals and alloys - Corrosion test in artificial atmosphere - Accelerated outdoor test by intermittent spraying of a salt solution (Scab test)
ISO 11845:1995 Corrosion of metals and alloys - General principles for corrosion testing
ISO 9227:1990 Corrosion tests in artificial atmospheres; salt spray tests
SAE J1455-2011 Recommended Environmental Practices for Electronic Equipment Design in Heavy-Duty Vehicle Appllications
SAE J400-2002 Test for Chip Resistance of Surface Coatings*， 2024-04-19 Update
SAE J447-1995 Prevention of Corrosion of Motor Vehicle Body and Chassis Components
SAE J840-2007 Test Procedures for Shear Strength of Automotive Brake Pads and Brank Lining Assemblies

2023 SAE J2721-2023 Recommended Corrosion Test Methods for Commercial Vehicle Components
2011 SAE J2721-2011 Recommended Corrosion Test Methods for Commercial Vehicle Components
2009 SAE J2721-2009 Recommended Corrosion Test Methods for Commercial Vehicle Components