1.8903

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Chemical composition %   of   steel   1.8903   EN 10025-3-2004

Nominal thickness =< 63(mm) CEV max = 0.53 Nominal thickness from 63 to 100 (mm) CEV max = 0.54 For long products the P and S content can be 0.005% higher For railway application a maximum S content of 0.01% may be agreed at the time of enquiry and order In sufficient other N-binding elements are present the minimum total Al content does not applay Cu content above 0.4% may cause hot shortness during hot forming

C

Si

Mn

Ni

P

S

Cr

Mo

V

N

Nb

Ti

Al

Cu

CEV

max   0.2

max   0.6

1 - 1.7

max   0.8

max   0.025

max   0.02

max   0.3

max   0.1

max   0.2

max   0.025

max   0.05

max   0.05

max   0.02

max   0.55

max   0.55

Mechanical properties of   steel   1.8903 

Nominal thickness (mm):	to 100	100 - 200
Rm - Tensile strength (MPa)	540-720	530-710

Nominal thickness (mm):	to 16	16 - 40	40 - 63	63 - 80	80 - 100	100 - 150	150 - 200
ReH - Minimum yield strength (MPa)	460	440	430	410	400	380	370

KV - Impact energy (J) longitud., (+N)	+20° 63	0° 55	-10° 51	-20° 47	-30° 40	-40° 31	-50° 27

KV - Impact energy (J) transverse, (+N)	+20° 40	0° 34	-10° 30	-20° 27	-30° 23	-40° 20	-50° 16

Nominal thickness (mm):	to 16	16 - 40	40 - 63	63 - 80	80 - 200
A - Min. elongation Lo = 5,65 √ So (%)	17	17	17	17	17