[Retracted] Mathematical Modeling and Multivariable Optimization Design of SUV Chassis Structure Based on SFE CONCEPT

Table 3

List of main parameters of steel commonly used in chassis structure of models.

Designation	Yield strength (MPa)	Ultimate tensile strength (MPa)	Total elongation (%)
HSLA 350/450	350	450	23–27
DP 300/500	300	500	30–34
DP 350/600	350	600	24–30
TRIP 450/800	450	800	26–32
DP 500/800	500	800	14–20
CP 700/1000	700	800	10–15
DP 700/1000	700	1000	12–17
Mart 1250/1250	1250	1520	4–6