Gears, shafts, and flanges where a tough core and hard surface are required.
If you manage to access the document, here is what you should look for: sae j1397 pdf
While the search for a quick PDF download is understandable, remember that accuracy in engineering is paramount. Always verify your data against the official SAE publication. Gears, shafts, and flanges where a tough core
Estimated values for tensile strength, yield strength, elongation, reduction of area, and Brinell hardness. reduction of area
: Some data in the report are based on long-standing resources that SAE notes may no longer be "totally accurate" but are retained for general service in lieu of more current data. Common Applications Designers and material engineers use this report for: