Fe	Si	Cu	Mn	Mg	Zn	Cr	Zi+Ti	Other	Al
0,4	0,35	0,2	0,05-0,5	1,0-1,4	4,0-5,0	0,1-0,35	0,08-0,35	0,15	Remaining

Temper	Yield Strength (MPa) Min – Max	Tensile Strength (MPa) Min – Max	Elongation (%50)   Min – Max	Hardness (HB)   Min - Max
0	80	180		45 - 55
T5	290 - 315	350 - 375	8 - 14	10
T6	290 - 315	350 - 380	8 - 12	105 - 125

General Properties

It has high fatigue strength and high-strength weldability, but it is not suitable for cold bending. Appropriate precautions should be taken against stress-related cracking. It is used in welded engineering structures, train wagon bodies, truck parts, electrical poles, and container manufacturing.