EN 10149-2 S420MC Hot Rolled Automotive Steel

EN 10149-2 S420MC is a high-strength low-alloy steel that is used in the automotive industry for structural and safety-related components. This type of steel is often used in chassis and suspension components, as well as in safety-critical parts such as seat frames and airbag components.
 

Composition of S420MC automotive steel(%, cast analysis)

C max.	Si max.	Mn max.	P max.	S max.	Al min.	Nb max.	V max.	Ti max.
0.12	0.50	1.60	0.025	0.015	0.015	0.09	0.20	0.15

Mechanical properties of S420MC automotive steel

Grade	Yield Strength	Tensile Strength	Elongation %
	MPa min.	MPa	< 3mm	≥ 3mm
S420MC	420	480-620	16	19

1. The S420MC steel grade has a minimum yield strength of 420 MPa and a minimum tensile strength of 480-620 MPa, depending on the thickness of the material.  It also has good weldability and high impact strength, which are important properties for automotive applications.

2. Some of the typical applications of EN 10149-2 S420MC in the automotive industry include chassis and suspension components, bumper systems, seat frames, wheel rims, and crash boxes.  The high strength and toughness of this steel grade allow for lighter weight designs and improved fuel efficiency, while still maintaining the necessary safety requirements.