Tensile Test on AISI 4130 Steel

Testing Parameters

IDE 120 Rectangular Tension Test with 1" Extensometer File name: 4-6-05 4130 rect tension_11.is_metal
Temperature		78.0 F		Initial width		0.623 in
Humidity		31.0%		Initial thickness		0.247 in
System of units		US Customary		Initial length		12 in
Data collection interval		0.0500 sec		Initial area		0.154 in2
Crosshead speed		1 in/min		Final width		0.513 in
Source for tensile strain		Strain 1		Final thickness		0.184 in
Gauge width 1		1.000		Final length		13.0625 in
Strain auto balance		True		Final area		0.094 in2
Extensometer removal at		95%		Break location		Outside gauge length
End of test sensitivity		20%

Results

Provided by Instron's "Bluehill Materials Testing Software."

Modulus Elasticity 33.1 Msi Resilience 0.299 ksi Toughness 8.760 ksi Major Events 0.2%-Offset Yield Max. Load Break Load (kip) 13.8 17.0 14.8 Extension (in) 0.173 0.883 1.198 Stress, Engineering (ksi) 89.6 110.5 96.3 Stress, True (ksi) 157.0 Strain (%) 0.48 6.97 8.51 Energy (ft-lbf) 3.8   112.3 Elongation, Total (%) 0.48 6.97 8.51 Elongation, Plastic (%) 6.63 8.22 Provided by Instron's "Bluehill Materials Testing Software."

Summary of Results

Property	Experimental Results1	Reference Values2	Percent Difference
Modulus of Elasticity	33.1 Msi	29.7 Msi	10.8%
Tensile Strength, Yield	89.6 ksi	66.7 ksi	29.3%
Tensile Strength, Ultimate	110.5 ksi	106.0 ksi	4.2%
Elongation at Break, Total	8.51% 3	25.1% 4	98.7%
Reduction of Area	38.7%	59.6%	42.5%
Modulus of Resilience	0.299 ksi
Modulus of Toughness	8.760 ksi

1. From Instron's "Bluehill Materials Testing Software."
2. From www.matweb.com for AISI 4130 Steel, normalized at 870°C (1600°F), air cooled, 13 mm (0.5 in.) round.  Actual treatment of tested specimen unknown.
3. Over 1 inch length.
4. Over 50 mm length.