SAE-AISI 8115 (G81150) Ni-Cr-Mo Steel
Alloy Steels
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength610MPa
Yield Strength500MPa
Brinell Hardness180HB
Maximum Service Temperature410°C
Chemical Composition
C
0.13 to 0.18%
CR
0.3 to 0.5%
NI
0.2 to 0.4%
MO
0.080 to 0.15%
MN
0.7 to 0.9%
SI
0.15 to 0.35%
P
0 to 0.035%
S
0 to 0.040%
FE
97.4 to 98.4%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
15 %
Fatigue Strength
320 MPa
Poisson's Ratio
0.29
Shear Modulus
73 GPa
Shear Strength
370 MPa
Tensile Strength: Ultimate (UTS)
610 MPa
Tensile Strength: Yield (Proof)
500 MPa
Hardness
Brinell Hardness
180
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
410 °C
Melting Completion (Liquidus)
1460 °C
Melting Onset (Solidus)
1420 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
43 W/m-K
Thermal Diffusivity
12 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
19 points
Electrical
Electrical Conductivity: Equal Volume
7.2 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.2 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
86 MJ/m 3
Resilience: Unit (Modulus of Resilience)
660 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
21 points
Strength to Weight: Bending
20 points
Environmental
Base Metal Price
2.3 % relative
Embodied Carbon
1.5 kg CO 2 /kg material
Embodied Energy
19 MJ/kg
Embodied Energy
19 MJ/kg 8.4 x 10 3 BTU/lb
Embodied Water
49 L/kg
Embodied Water
49 L/kg 5.8 gal/lb
Registered Designations & Aliases
G81150SAE-AISI 8115 (G81150) Ni-Cr-Mo Steel