26 



Experimental Besearches 



[Jan., 



Comparison of Steel manufactured after the Bessemer Peocess, with that 

 MANUFACTURED by Other Processes. 



Table I. — Transverse Strain on inch-square bars, and 4 ft. 6 in, between the supports. 



Makltacturer. 



Description 



of 



Steel. 



Mean 

 value, Dj, 

 of the de- 

 flection for 



unity of 



pressure 

 and 



section. 



Mean value 



of the 

 modulus of 

 elasticity E. 



Mean 

 work 

 of de- 

 flection, 

 u, for 

 unity 



of 

 section. 



Mean 

 value of 

 C, the 

 unit of 

 ivorking 

 strengtli. 



Eeuabes. 



Messrs. J. Brown & Co. 



f Bessemer) 



\! steel / 



Messrs. C. Cammell & Co. 



Messrs. H. Bessemer & Co. 



The Hasmatite Steel and) 



Iron Company .. .. j 



Mean .. 



Messrs. Naylor, Viclcers,] 

 & Co J 



Messrs. S. Oshorn & Co. 



• 0012739 30 , 730 , 000 52 • 721 



0013518 29 , 166 , OOo'59 - 897 

 0016684 29,813,000 49-489 



00 ] 4590 27 , 153 , 000 26 • 463 



Melted in "I 

 the crucible J 



Messrs. C. Sanderson & "I 



Brothers /j '' 



jlfess/s. T. Turton & Sons , , 



The Titanic Steel andVMushet's' 

 Iron Company . . ../j steel 



Mean 



3-914 



0014382 29, 215 , 000;47 • 142 



5-283 



0013007 30, 278 ,000 65 • 049 



0014296 



0013209 



27,482,000 



29,973,000 



lbs. 

 Mean 1 

 breaking! 1000 

 weight ) 

 Do. 950 



Do. 975 



Soft steel. 



52-574 



47-411 



0013120,30 , 294 , 000 52 - 680 



0012350'31,901,000 



63-542 



0013190 30,042,000,56-251 



6-548 



5-622 



5-521 

 5-886 

 6-435 



Mean j 

 breaking 1 1250 

 weight 



6-002 



Do. 

 Do. 



1250 

 1200 



Table II. — Tensile Strain on bars 



inch diameter. Elongations taken on 8 in. lenglh. 



