Study on Concrete Pier Impact Performance after Implementing Equal Cross-Section Stainless Steel with Protection from Closed-Cell Aluminum Foam

Table 3

Performance of the steel bar material.

Longitudinal reinforcement	Steel diameter (mm)	Yield strength (N/mm^2)	Ultimate strength (N/mm^2)	Elasticity modulus (N/mm^2)
HPB400	16	420	540	2.00 × 10^5
	20	440	580
S2304	16	670	734	1.93 × 10^5
	20	720	858