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AISI 1040
Conditions Tensile Properties 
T (°C)Treatment
25 annealed at 790°C   Tensile Strength (MPa) 518.8 
Yield Strength (MPa) 353.4 
Elongation (%) 30.2 
Reduction in Area (%) 57.2 
25 normalized at 900°C   Tensile Strength (MPa) 589.5 
Yield Strength (MPa) 374.0 
Elongation (%) 28.0 
Reduction in Area (%) 54.9 
25 oil quenched, fine grained, tempered at 205°C   Tensile Strength (MPa) 779 
Yield Strength (MPa) 593 
Elongation (%) 19 
Reduction in Area (%) 48 
25 oil quenched, fine grained, tempered at 315°C   Tensile Strength (MPa) 779 
Yield Strength (MPa) 593 
Elongation (%) 20 
Reduction in Area (%) 53 
25 oil quenched, fine grained, tempered at 425°C   Tensile Strength (MPa) 758 
Yield Strength (MPa) 552 
Elongation (%) 21 
Reduction in Area (%) 54 
25 oil quenched, fine grained, tempered at 540°C   Tensile Strength (MPa) 717 
Yield Strength (MPa) 490 
Elongation (%) 26 
Reduction in Area (%) 57 
25 oil quenched, fine grained, tempered at 650°C   Tensile Strength (MPa) 634 
Yield Strength (MPa) 434 
Elongation (%) 29 
Reduction in Area (%) 65 
25 rolled   Tensile Strength (MPa) 620.5 
Yield Strength (MPa) 413.7 
Elongation (%) 25.0 
Reduction in Area (%) 50.0 
25 water quenched, fine grained, tempered at 205°C   Tensile Strength (MPa) 896 
Yield Strength (MPa) 662 
Elongation (%) 16 
Reduction in Area (%) 45 
25 water quenched, fine grained, tempered at 315°C   Tensile Strength (MPa) 889 
Yield Strength (MPa) 648 
Elongation (%) 18 
Reduction in Area (%) 52 
25 water quenched, fine grained, tempered at 425°C   Tensile Strength (MPa) 841 
Yield Strength (MPa) 634 
Elongation (%) 21 
Reduction in Area (%) 57 
25 water quenched, fine grained, tempered at 540°C   Tensile Strength (MPa) 779 
Yield Strength (MPa) 593 
Elongation (%) 23 
Reduction in Area (%) 61 
25 water quenched, fine grained, tempered at 650°C   Tensile Strength (MPa) 669 
Yield Strength (MPa) 496 
Elongation (%) 28 
Reduction in Area (%) 68 
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