EN 1.5663 (X7Ni9) Nickel Steel
Other Steels
Property Overview
Density8g/cm³
Elastic Modulus190GPa
Tensile Strength750MPa
Yield Strength585MPa
Brinell Hardness230HB
Maximum Service Temperature430°C
Chemical Composition
C
0 to 0.1%
NI
8.5 to 10%
MO
0 to 0.1%
MN
0.3 to 0.8%
SI
0 to 0.35%
P
0 to 0.015%
S
0 to 0.0050%
V
0 to 0.010%
FE
88.6 to 91.2%
Mechanical
A - Min. elongation at fracture (%) (+QT)
18
+QT
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
20 %
Fatigue Strength
450 MPa
Impact Strength: V-Notched Charpy
120 J
KV - Impact energy (J) longitud., (+QT)
+20° 120
+QT
KV - Impact energy (J) longitud., (+QT)
0° 120
+QT
KV - Impact energy (J) longitud., (+QT)
-20° 120
+QT
KV - Impact energy (J) longitud., (+QT)
-40° 120
+QT
KV - Impact energy (J) longitud., (+QT)
-50° 120
+QT
KV - Impact energy (J) longitud., (+QT)
-60° 120
+QT
KV - Impact energy (J) longitud., (+QT)
-80° 120
+QT
KV - Impact energy (J) longitud., (+QT)
-100° 120
+QT
KV - Impact energy (J) longitud., (+QT)
-120° 120
+QT
KV - Impact energy (J) longitud., (+QT)
-150° 120
+QT
KV - Impact energy (J) longitud., (+QT)
-170° 110
+QT
KV - Impact energy (J) longitud., (+QT)
-196° 100
+QT
KV - Impact energy (J) transverse, (+QT)
+20° 100
+QT
KV - Impact energy (J) transverse, (+QT)
0° 100
+QT
KV - Impact energy (J) transverse, (+QT)
-20° 100
+QT
KV - Impact energy (J) transverse, (+QT)
-40° 100
+QT
KV - Impact energy (J) transverse, (+QT)
-50° 100
+QT
KV - Impact energy (J) transverse, (+QT)
-60° 100
+QT
KV - Impact energy (J) transverse, (+QT)
-80° 100
+QT
KV - Impact energy (J) transverse, (+QT)
-100° 100
+QT
KV - Impact energy (J) transverse, (+QT)
-120° 100
+QT
KV - Impact energy (J) transverse, (+QT)
-150° 100
+QT
KV - Impact energy (J) transverse, (+QT)
-170° 90
+QT
KV - Impact energy (J) transverse, (+QT)
-196° 80
+QT
Poisson's Ratio
0.29
ReH - Minimum yield strength (MPa) (+QT)
585
+QT
ReH - Minimum yield strength (MPa) (+QT)
575
+QT
Rm - Tensile strength (MPa) (+QT)
680-820
+QT
Shear Modulus
73 GPa
Shear Strength
470 MPa
Tensile Strength: Ultimate (UTS)
750 MPa
Tensile Strength: Yield (Proof)
660 MPa
Hardness
+A Soft annealed +AC Annealed to achieve spheroidization of the carbides +AR As rolled +AT Solution annealed +C Cold drawn / hard +CR Cold rolled +FP Treated to ferrite-pearlite structure and hardness range +I Isothermal annealing +LC Cold drawn / soft +M Thermo mechanical rolling +N Normalized +NT Normalized and tempered
+P Precipitation hardened +PE Peeled +QA Air quenched and tempered +QL Liquid quenched and tempered +QT Quenched and tempered +S Treated to improve shearability +SH As rolled and turned +SR Cold drawn and stress relieved +T Tempered +TH Treated to hardness range +WW Warm worked +U Untreated
+A
Brinell Hardness
230
Physical
Density
8.0 g/cm 3
Thermal
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
430 °C
Melting Completion (Liquidus)
1460 °C
Melting Onset (Solidus)
1410 °C
Specific Heat Capacity
470 J/kg-K
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
22 points
Electrical
Electrical Conductivity: Equal Volume
8.7 % IACS
Electrical Conductivity: Equal Weight (Specific)
9.8 % IACS
Other
Nominal thickness (mm):
to 50
Nominal thickness (mm):
to 30
Nominal thickness (mm):
30 - 50
Calculated
Resilience: Ultimate (Unit Rupture Work)
150 MJ/m 3
Resilience: Unit (Modulus of Resilience)
1150 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
26 points
Strength to Weight: Bending
23 points
Environmental
Base Metal Price
7.5 % relative
Embodied Carbon
2.3 kg CO 2 /kg material
Embodied Energy
31 MJ/kg
Embodied Energy
31 MJ/kg 13 x 10 3 BTU/lb
Embodied Water
63 L/kg
Embodied Water
63 L/kg 7.5 gal/lb
Registered Designations & Aliases
1.56631.5663EN 1.5663 (X7Ni9) Nickel SteelX7Ni9X7Ni9
Standards
EN 10028-4 EN 10028-4: 2009 Flat products made of steels for pressure purposes. Nickel alloy steels with specified low temperature properties
EN 10028-4 EN 10028-4: Flat products made of steels for pressure purposes - Part 4: Nickel alloy steels with specified low temperature properties
EN 10028-4 EN 10028-4: Flat products made of steels for pressure purposes - Part 4: Nickel alloy steels with specified low temperature properties Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005