1.8159

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Chemical composition %   of   steel   1.8159

C	Si	Mn	P	S	Cr	V
0.47 - 0.55	max   0.4	0.7 - 1.1	max   0.025	max   0.025	0.9 - 1.2	0.1 - 0.25

Mechanical properties of   steel  1.8159

Nominal diameter (mm):	to 16	16 - 40	40 - 100	100 - 160	160 - 250
Rm - Tensile strength (MPa) (+QT)	1100-1300	1000-1200	900-1100	800-1000	800-950

Nominal thickness (mm):	0.3 - 3
Rm - Tensile strength (MPa) (+A)	700

Nominal diameter(mm):   or for flat products thickness: to 8; 8-20; 20-60; 60-100; 100-160;	to 16	16 - 40	40 - 100	100 - 160	160 - 250
Re - Upper yield strength or  Rp0.2 - 0.2% proof strength (MPa) (+QT)	900	800	700	650	600

Nominal thickness(mm):	0.3 - 3
Rp0.2 0.2% proof strength (MPa) (+A)	550

Nominal thickness (mm):	0.3 - 3
A - Min. elongation Lo = 80 mm (%) (+A)	13

A - Min. elongation at fracture (%) transverse, (+QT)	9

Nominal thickness (mm):	to 16	16 - 40	40 - 100	100 - 160	160 - 250
A - Min. elongation Lo = 5,65 √ So (%) (+QT), round products	9	10	12	13	13

Nominal diameter (mm):     or for flat products thickness: to 8; 8-20; 20-60; 60-100; 100-160;	to 16	16 - 40	40 - 100	100 - 160	160 - 250
Z - Reduction in cross section on fracture (%) (+QT)	40	45	50	50	50

Brinell hardness   (HBW):   (+A)	248
Brinell hardness   (HBW):   (+S)	280
Brinell hardness   (HBW):   (+AC)	230
Vickers hardness  ( HV):   (+A)	220
Vickers hardness  ( HV):   (+QT)	370 - 550