INTRODUCTION: The SAE Iron and steel Technical Committee ?C Division 14 in cooperation with the Technical Committee on Alloy Steel Bars of the American Iron and Steel Institute devised hardenability bands for the constructional alloy steels. The initial SAE Standard for H Steels was published in 1948 and numerous revisions and additions have been issued in the intervening years. The SAE Iron and Steel Technical Committee established Division 8 in 1960 to devise hardenability bands for carbon steels. The result of Division 8 efforts is the SAE Recommended Practice J776. Since that time@ Divisions 14 has been dissolved and Division 1 was formed and was given responsibility for Carbon and Alloy Steel Bars. Division 8 is now responsible for Hardenability for Carbon and Alloy Steels. This trend was followed by the American Iron and Steel Institute which now has a technical committee for bars which covers both carbon and alloy steels. SAE Recommended Practice J776 and the SAE Standard J407 were retired and the carbon and alloy H-Band Steels are combined in this new standard.
SAE J1268-1988 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