H steels and their corresponding minimum and maximum hardenabiiity limits are shown for all of the carbon and alloy steels for which there are sufficient hardenabiiity data and for grades that can use the standard end quench test. As hardenabiiity data are accumulated for other grades@ this SAE Standard will be revised to include such grades.
SAE J1268-1993 history
2010SAE J1268-2010 Hardenability Bands for Carbon and Alloy H Steels
1995SAE J1268-1995 Hardenability Bands for Carbon and Alloy H Steels
1993SAE J1268-1993 Hardenability Bands for Carbon and Alloy H Steels
1988SAE J1268-1988 Hardenability Bands for Carbon and Alloy H Steels
1981SAE J1268-1981 HARDENABILITY BANDS FOR CARBON AND ALLOY H STEELS
1980SAE J1268-1980 Hardenability Bands for Carbon and Alloy H Steels