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X8Ni9 welding neck flanges EN 10222-3 wn forged flanges 1.5662 steel forged wn flanges

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X8Ni9 welding neck flanges EN 10222-3 wn forged flanges 1.5662 steel forged wn flanges

Steel Number : 1.5662

Material : X8Ni9

Type : welding neck flanges

Type flange : wn flange

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Grade : X8Ni9
Number: 1.5662
Classification: Alloy special steel
Density: 7.89 g/cm ³
Standard:
EN 10028-4: 2009 Flat products made of steels for pressure purposes. Nickel alloy steels with specified low temperature properties
EN 10222-3: 1999 Steel forgings for pressure purposes. Nickel steels with specified low-temperature properties
EN 10269: 1999 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties

Chemical composition % of steel X8Ni9 (1.5662): EN 10028-4-2003
Cr+Cu+Mo < 0.5%
C Si Mn Ni P S Mo V
max 0.1 max 0.35 0.3 - 0.8 8.5 - 10 max 0.02 max 0.005 max 0.1 max 0.05


Mechanical properties of steel X8Ni9 (1.5662)
Nominal thickness (mm): to 50
Rm - Tensile strength (MPa) (+N) 640-840
Nominal thickness (mm): to 30 30 - 50
ReH - Minimum yield strength (MPa) (+N) 490 480
Nominal thickness (mm): to 30 30 - 50
ReH - Minimum yield strength (MPa) (+QT) 490-585 480-575
KV - Impact energy (J) longitud., (+N) +20°
100		 0°
100		 -20°
100		 -40°
100		 -50°
100		 -60°
100		 -80°
100		 -100°
90		 -120°
80		 -150°
70		 -170°
60		 -196°
50
KV - Impact energy (J) transverse, (+N) +20°
70		 0°
70		 -20°
70		 -40°
70		 -50°
70		 -60°
70		 -80°
70		 -100°
60		 -120°
50		 -150°
50		 -170°
45		 -196°
40
KV - Impact energy (J) longitud., (+QT) +20°
120		 0°
120		 -20°
120		 -40°
120		 -50°
120		 -60°
120		 -80°
120		 -100°
110		 -120°
100		 -150°
90		 -170°
80		 -196°
70
KV - Impact energy (J) transverse, (+QT) +20°
100		 0°
100		 -20°
100		 -40°
100		 -50°
100		 -60°
100		 -80°
100		 -100°
90		 -120°
80		 -150°
70		 -170°
60		 -196°
50
Nominal thickness (mm): to 50
A - Min. elongation at fracture (%) 18
Z - Reduction in cross section on fracture (%) (+QT) 50


Equivalent grades of steel X8Ni9 (1.5662)
Warning! Only for reference
EU
EN		 France
AFNOR
X8Ni9
9Ni490
Z8N09

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