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.
Rationale
The chassis test procedure has been modified to fit into a standard 8-hour work day. This change was made because of user requests. The verbiage for the chassis and wheel end section has been modified to improve clarity. The flowcharts for these sections has been simplified and updated to correlate with the descriptions.
SAE J2721 has been reaffirmed to comply with the SAE Five-Year Review policy.
The Truck and Bus Total Vehicle Steering Committee and its committees have the responsibility to initiate, develop, review and approve the SAE Technical Reports (Standards, Recommended Practices, and Information Reports) related to medium and heavy duty trucks and buses with GVWRs greater than 10,000 lbs., and their unique components and accessories. Vehicles to be addressed include vans, utility vehicles, trucks, truck tractor combinations, trailers and buses. This is to be done on behalf of the SAE Truck-Bus Council, the Technical Standards Board, and to serve the best interests of the public.The Total Vehicle Steering Committee provides the support, review, and approval of the work of its committees.The committees organized under the Truck and Bus Total Vehicle Steering Committee are the following: Aerodynamics and Fuel Economy, Corrosion, Tire, and Tire Pressure Management Systems.
* Redlines comparisons are available for those standards
listed in the Revision History that contain a radio button. A
redline comparison of the current version against a revision is
accomplished by selecting the radio button next to the standard and
then selecting 'compare'. At this time, Redline versions only exist
for some AMS standards. SAE will continue to add redline versioning
with ongoing updates to SAE MOBILUS.
View/Annotate
Content Loading, Please Wait
Document Preview
Content Loading, Please Wait
Document Comparison
Content Loading, Please Wait
Download
A list of downloadable items.
Product Code
Document Title
File Type
Download
J2721_202305
Recommended Corrosion Test Methods for Commercial Vehicle Components
Export Metadata
This modal will allow the user to download citation information or export specific fields of data into one of three file formats: Excel, comma-separated values, or text.
You are currently not logged into your Dashboard account, which is required for annotating.
Please select Login to login or register for the Dashboard. Select Continue to view the content without the ability to annotate.
Redline Warning
You are currently not logged into your Dashboard account, which is required for annotating.
Please select Login to login or register for the Dashboard. Select Continue to view the content without the ability to annotate.
Data Set Warning
Recommended Corrosion Test Methods for Commercial Vehicle Components
SAE Journal Subscriptions are available in a variety of options, which include electronic, electronic with back file, and archive. For detailed information and options, please complete the following:
Content Request
Check My Access!
You may already have access to the Ground Vehicle Standard, Recommended Corrosion Test Methods for Commercial Vehicle Components
Subscription Access
If you have Subscription Access with a username and password, please login below.
Institutional Login
If you have Institutional Access to SAE MOBILUS, using a predetermined organizational login utilizing single-sign-on (Shibboleth), please login below. To request institutional access to SAE MOBILUS, please complete the institutional subscription information form.
Purchase
If you do not have access to SAE MOBILUS via username/password or institutional access, you can still purchase the Ground Vehicle Standard, Recommended Corrosion Test Methods for Commercial Vehicle Components.
Search Tips: Search Operators:AND, OR, NOT; Wild Cards; Using Quotes
SAE MOBILUS® Search Tips
Please note: All terms not contained within quotes, will be evaluated using the OR operator. This means that your search results will contain all results that contain ANY of the entered terms.
AND, OR, NOT
SAE MOBILUS supports the use of the AND, OR and NOT BOOLEAN operators ONLY function with the Advanced Search.
Wild Cards
Using the asterisk, ( * ) allows you to search for a partial word. For example, entering a keyword search of aero* will search for any word beginning with aero.
Using the question mark, ( ? ) allows you to search for a word with a single character wildcard. For example, searching for t?re would match both tire and tyre
Using Quotes
Words in double quotes " " are treated as a phrase. Conducting a search for "heat model" will return all results in which the exact phrase "heat model" is found, while "heat modeling" would NOT be included.
A term combined with a phrase will be joined with an OR operator.
Searching for Standards
When searching for a standard please use the entire Document Number assigned, which includes the abbreviation. A space can be used, or omitted between the abbreviation and number.
