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. 2021 Jun 1;14(11):2995. doi: 10.3390/ma14112995

Table 5.

Duplex stainless steel bar mechanical indicators normal distribution test results.

Category Number of Specimens χ2 χα2(kr1) Test Results
Tensile strength 177 5.36 5.891 Accepted
Elongation after break 95 12.3 12.69 Accepted
Modulus of elasticity 175 5.62 7.85 Accepted
Yield strength 175 10.33 12.92 Accepted