EN 1.6781 (G17NiCrMo13-6) Cast Steel
Other Steels
Property Overview
Density7.9g/cm³
Elastic Modulus190GPa
Tensile Strength830MPa
Yield Strength600MPa
Brinell Hardness250HB
Maximum Service Temperature450°C
Chemical Composition
C
0.15 to 0.19%
CR
1.3 to 1.8%
NI
3.0 to 3.5%
MO
0.45 to 0.6%
MN
0.55 to 0.8%
SI
0 to 0.5%
P
0 to 0.015%
S
0 to 0.015%
FE
92.6 to 94.6%
Mechanical
A - Min. elongation at fracture (%) (+QT)
15
+QT
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
17 %
Fatigue Strength
450 MPa
KV - Impact energy (J) (+QT)
-80° 27
+QT
Poisson's Ratio
0.29
R p0.2 0.2% proof strength (MPa) (+QT)
600
+QT
Rm - Tensile strength (MPa) (+QT)
750-900
+QT
Shear Modulus
73 GPa
Tensile Strength: Ultimate (UTS)
830 MPa
Tensile Strength: Yield (Proof)
680 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
7.9 g/cm 3
Thermal
Latent Heat of Fusion
260 J/g
Maximum Temperature: Mechanical
450 °C
Melting Completion (Liquidus)
1460 °C
Melting Onset (Solidus)
1420 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
44 W/m-K
Thermal Diffusivity
12 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
24 points
Electrical
Electrical Conductivity: Equal Volume
7.9 % IACS
Electrical Conductivity: Equal Weight (Specific)
9.1 % IACS
Calculated
PREN (Pitting Resistance)
3.3
Resilience: Ultimate (Unit Rupture Work)
130 MJ/m 3
Resilience: Unit (Modulus of Resilience)
1220 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
5.0 % relative
Embodied Carbon
1.9 kg CO 2 /kg material
Embodied Energy
25 MJ/kg
Embodied Energy
25 MJ/kg 11 x 10 3 BTU/lb
Embodied Water
60 L/kg
Embodied Water
60 L/kg 7.2 gal/lb
Registered Designations & Aliases
1.67811.6781EN 1.6781 (G17NiCrMo13-6) Cast SteelG17NiCrMo13-6G17NiCrMo13-6
Standards
EN 10213 EN 10213: 2007 Steel castings for pressure purposes
EN 10293 EN 10293: 2005 Steel castings for general engineering uses
EN 10293 EN 10293: Steel castings - Steel castings for general engineering uses
ISO 4991 ISO 4991: Steel castings for pressure purposes
ISO 4991 ISO 4991: Steel castings for pressure purposes EN 10293: Steel castings - Steel castings for general engineering uses