This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
METHODS OF DETERMINING HARDENABILITY OF STEELS
- Ground Vehicle Standard
- J406C_197712
- Revised
Sector:
Issuing Committee:
Language:
English
Scope
This SAE Standard prescribes the procedure for making hardenability tests and recording results on shallow and medium hardening steels, but not deep hardening steels that will normally air harden.
Included are procedures using the 1 in (25 mm) standard hardenability end quench specimen for both medium and shallow hardening steels, Surface-Area-Center (SAC) method for shallow hardening steels, subsize method for bars less than 1 1/4 in (32 mm) in diameter, and methods for determining carburized hardenability.
Any hardenability tests made under other conditions than those given in this SAE Standard will not be deemed standard and will be subject to agreement between supplier and user. Whenever check tests are made, all laboratories concerned must arrange to use the same alternate procedure with reference to test specimen and method of grinding for hardness testing.
For routine testing of the hardenability of successive heats of steel required to have hardenability within certain limits, it is sufficient to designate hardenability simply in terms of distance from the quenched end to the point at which a certain hardness is obtained. This designation is also adequate for comparing steels of different compositions to see whether they have similar hardenability.
Hardenability limits for specifying steel in this manner are obtained by measuring the hardenability of a steel which has proved satisfactory for the use intended. The hardenability test may be used in this way as an empirical test.
Hardenability data may be used to estimate hardnesses obtainable with any steel in new machine parts not yet in production and not similar to any parts on which production experience is available. Various hardenability application methods are described in the selected references in the Bibliography. It appears none of these methods are precise, but these are often useful for estimation purposes. Final correlation on actual parts is necessary.
Data Sets - Support Documents
No Datasets Available
Issuing Committee
Carbon and Alloy Steels Committee
The Carbon and Alloy Steels Committee of MTEC develops and maintains SAE Standards, Recommended Practices and Information Reports relating to Carbon and Alloy Steels. Participants in the Carbon and Alloy Steels Committee include OEMs, suppliers, consulting firms, government and other interested parties.
Reference
| Number | Title |
|---|
* 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.