ASTM A225 Grade D Mn-V-Ni Steel
Alloy Steels
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength620MPa
Yield Strength460MPa
Brinell Hardness190HB
Maximum Service Temperature400°C
Chemical Composition
C
0 to 0.2%
NI
0.37 to 0.73%
MN
0 to 1.8%
SI
0.080 to 0.56%
P
0 to 0.035%
S
0 to 0.035%
V
0.080 to 0.2%
FE
96.4 to 99.47%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
21 %
Fatigue Strength
330 MPa
Poisson's Ratio
0.29
Shear Modulus
73 GPa
Shear Strength
390 MPa
Tensile Strength: Ultimate (UTS)
620 MPa
Tensile Strength: Yield (Proof)
460 MPa
Hardness
Brinell Hardness
190
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
400 °C
Melting Completion (Liquidus)
1460 °C
Melting Onset (Solidus)
1420 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
52 W/m-K
Thermal Diffusivity
14 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
18 points
Electrical
Electrical Conductivity: Equal Volume
7.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.4 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
120 MJ/m 3
Resilience: Unit (Modulus of Resilience)
580 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
22 points
Strength to Weight: Bending
21 points
Environmental
Base Metal Price
2.3 % relative
Embodied Carbon
1.8 kg CO 2 /kg material
Embodied Energy
24 MJ/kg
Embodied Energy
24 MJ/kg 10 x 10 3 BTU/lb
Embodied Water
48 L/kg
Embodied Water
48 L/kg 5.7 gal/lb
Registered Designations & Aliases
ASTM A225 Grade D Mn-V-Ni Steel
Standards
ASTM A225 ASTM A225: Standard Specification for Pressure Vessel Plates, Alloy Steel, Manganese-Vanadium-Nickel
ASTM A225 ASTM A225: Standard Specification for Pressure Vessel Plates, Alloy Steel, Manganese-Vanadium-Nickel Pressure Vessels: External Pressure Technology, 2nd ed., Carl T. F. Ross, 2011 Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005