EN 1.8880 (P690QH) Nickel Steel
Other Steels
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength830MPa
Yield Strength690MPa
Brinell Hardness250HB
Maximum Service Temperature420°C
Chemical Composition
C
0 to 0.2%
CR
0 to 1.5%
NI
0 to 2.5%
MO
0 to 0.7%
MN
0 to 1.7%
SI
0 to 0.8%
N
0 to 0.015%
P
0 to 0.025%
S
0 to 0.010%
CU
0 to 0.3%
NB
0 to 0.060%
TI
0 to 0.050%
V
0 to 0.12%
B
0 to 0.0050%
ZR
0 to 0.15%
FE
91.9 to 100%
Mechanical
A - Min. elongation at fracture (%) (+QT)
14-16
+QT
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
16 %
Fatigue Strength
470 MPa
Impact Strength: V-Notched Charpy
68 J
KV - Impact energy (J) longitud.,
-20° 40
KV - Impact energy (J) longitud.,
0° 45-60
KV - Impact energy (J) longitud.,
+20° 50-80
KV - Impact energy (J) transverse, (+QT)
-20° 27
+QT
KV - Impact energy (J) transverse, (+QT)
0° 31-40
+QT
KV - Impact energy (J) transverse, (+QT)
+20° 35-60
+QT
Poisson's Ratio
0.29
R p0.2 0.2% proof strength (MPa) (+QT)
690
+QT
R p0.2 0.2% proof strength (MPa) (+QT)
650
+QT
R p0.2 0.2% proof strength (MPa) (+QT)
615
+QT
R p0.2 0.2% proof strength (MPa) (+QT)
580
+QT
R p0.2 0.2% proof strength (MPa) (+QT)
540
+QT
R p0.2 0.2% proof strength (MPa) (+QT)
500
+QT
ReH - Minimum yield strength (MPa) (+QT)
690
+QT
ReH - Minimum yield strength (MPa) (+QT)
670
+QT
ReH - Minimum yield strength (MPa) (+QT)
630
+QT
Rm - Tensile strength (MPa) (+QT)
770-940
+QT
Rm - Tensile strength (MPa) (+QT)
720-900
+QT
Shear Modulus
73 GPa
Shear Strength
510 MPa
Tensile Strength: Ultimate (UTS)
830 MPa
Tensile Strength: Yield (Proof)
720 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
250
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
260 J/g
Maximum Temperature: Mechanical
420 °C
Melting Completion (Liquidus)
1460 °C
Melting Onset (Solidus)
1420 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
40 W/m-K
Thermal Diffusivity
11 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
24 points
Electrical
Electrical Conductivity: Equal Volume
8.1 % IACS
Electrical Conductivity: Equal Weight (Specific)
9.3 % IACS
Other
Nominal thickness (mm):
to 100
Nominal thickness (mm):
100 - 150
Nominal thickness (mm):
to 50
Nominal thickness (mm):
50 - 100
Nominal thickness(mm):
to 20
Nominal thickness(mm):
20 - 40
Nominal thickness(mm):
40 - 50
Nominal thickness(mm):
50 - 65
Nominal thickness(mm):
65 - 80
Nominal thickness(mm):
80 - 100
Calculated
PREN (Pitting Resistance)
2.0
Resilience: Ultimate (Unit Rupture Work)
130 MJ/m 3
Resilience: Unit (Modulus of Resilience)
1370 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
29 points
Strength to Weight: Bending
25 points
Environmental
Base Metal Price
3.7 % relative
Embodied Carbon
1.9 kg CO 2 /kg material
Embodied Energy
26 MJ/kg
Embodied Energy
26 MJ/kg 11 x 10 3 BTU/lb
Embodied Water
54 L/kg
Embodied Water
54 L/kg 6.4 gal/lb
Registered Designations & Aliases
1.88801.8880EN 1.8880 (P690QH) Nickel SteelP690QHP690QH
Standards
EN 10028-6 EN 10028-6: 2009 Flat products made of steels for pressure purposes. Weldable fine grain steels, quenched and tempered
EN 10028-6 EN 10028-6: Flat products made of steels for pressure purposes - Part 6: Weldable fine grain steels, quenched and tempered
EN 10216-3 EN 10216-3: 2014 Seamless steel tubes for pressure purposes. Technical delivery conditions. Alloy fine grain steel tubes
EN 10273 EN 10273: 2007 Hot rolled weldable steel bars for pressure purposes with specified elevated temperature properties