Research on NDT Technology in Inference of Steel Member Strength Based on Macro/Micro Model

Table 6

Grain size and of steel plate.

Number	Yield strength (Mpa)	Tensile strength (Mpa)	Grain size (mm)
1	303	445	0.201632	2.227
2	309	450	0.128744	2.787
3	314	454	0.0945	3.253
4	321	460	0.065578	3.905
5	328	467	0.048155	4.557
6	331	469	0.042741	4.837
7	345	482	0.026508	6.142
8	353	489	0.021083	6.887
9	358	493	0.018496	7.353
10	365	499	0.015621	8.001