1.4903

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Chemical composition %   of   steel    (1.4903):   EN 10302-2008

0.2 =Si=<0.5; P=<0.02; S=<0.005; Al=<0.02; Cu=<0.3; Ti=<0.01 according EN 10216-2:2014

C	Si	Mn	Ni	P	S	Cr	Mo	V	N	Nb	Al
0.08 - 0.12	max   0.5	0.3 - 0.6	max   0.4	max   0.025	max   0.015	8 - 9.5	0.85 - 1.05	0.18 - 0.25	0.03 - 0.07	0.06 - 0.1	max   0.03

Mechanical properties of   steel    (1.4903)

Nominal thickness (mm):	to 60	60 - 150	150 - 250
Rm - Tensile strength (MPa)	580-760	550-730	520-700

Rm - Tensile strength (MPa) (+QT)	620-850

Nominal thickness (mm):	to 60	60 - 250
ReH - Minimum yield strength (MPa)	445	435

Rp0.2 0.2% proof strength (MPa) (+QT)	450

KV - Impact energy (J) transverse, (+NT)	-20° 27	0° 34	+20° 27-40

KV - Impact energy (J) longitud., (+NT)	+20° 40

A - Min. elongation at fracture (%)	18-20