ULTRA SUPER PUNCHINGTM FLEXURAL TEST

1.Purpose	Flexural test for perforated metal.
2.Samples to be tested	①SUS304 ②-③SUS316L
3.Test Method Picture 1 shows a pre-test appearance and picture 2 shows test piece after the test.	◎Flexural test Testing equipment : AG-X300kN(E2-020) (Shimazu) Test Conditions # of test pieces : 3 pieces Environmental temperature : Room temperature (23℃±5℃) Testing speed : 1mm/min Dimensions of test piece 40mm width x 140mm length Thickness ①3t(SUS304)②3t(SUS316L)③6t(SUS316L)
4.Result	The test results are summarized in the following pictures and table. Picture 1. Test conditions. Picture 2. Test piece after the test. Chart3. Stress-Strain Curve Table 1. Result of flexural test.

(Table 1)

Chart		Material	Thickness	Number of test piece	Dimensions of test piece (found value)		Environmental temperature	Ultimate Strength (N)	Nominal maximum stress
					width	thickness
					(mm)	(mm)
Ⓒ	①	SUS304	3.0	①	39.95	2.92	RT (23℃)	3399	959
	②	SUS316L	3.0	②	40.03	2.84		1812	836
	③	SUS316L	6.0	③	40.02	5.84		15876	1099
	Number of equipment for ①&② : E2-020　　　# of equipment for ③ : E2-018
	Remarks		Testing speed : 1mm/min　　　Room temperature : 23℃± 5℃ Nominal maximum stress = 3PL/2bh²　　　P:Max. test force L:Span 40mm b:Width b´=b-3x5(hole φ 3 pitch 5) h:thickness

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