and of bendability were made in conventional ways a number of steel compositions were produced in the foregoing manner of which significant examples are set forth in the following table values in weight percent ______________________________________steelno c mn si cb ti al cb ti______________________________________1 0 057 0 40 0 05 0 05 0 09 0 02 0 142 0 052 0 38 0 05 0 05 0 14 0 03 0 193 0 05 0 35 0 04 0 09 0 08 0 02 0 174 0 054 0 35 0 02 0 10 0 14 0 02 0 24______________________________________ these have been identified solely for reference herein by the consecutive numbers in the left hand column in all cases the content of phosphorus was less than 0 008 the sulfur content was about 0 008 and nitrogen was about 0 005 as will be understood the balance of the compositions consisted of iron and incidental impurities these steels were all of course aluminum killed tests have demonstrated that the sulfur content was not critical in most cases and could go up to 0 02 or in some cases even 0 025 without introducing undesired directionality in the properities of toughness and formability although phosphorus and nitrogen respectively to 0 03 and 0 015 could be tolerated good practice and emminently satisfactory results were had with low values of each of these elements i e a maximum p of about 0 015 and of n about 0 01 the total of columbium and titanium for each of the above heats is also listed and.