ASTM A414 Pressure Vessel Steel
Alloy Steels
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength360 to 590MPa
Yield Strength190 to 350MPa
Brinell Hardness110 to 180HB
Maximum Service Temperature400°C
Chemical Composition
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
15 to 26 %
Fatigue Strength
140 to 260 MPa
Poisson's Ratio
0.29
Shear Modulus
73 GPa
Shear Strength
230 to 370 MPa
Tensile Strength: Ultimate (UTS)
360 to 590 MPa
Tensile Strength: Yield (Proof)
190 to 350 MPa
Hardness
Brinell Hardness
110 to 180
Physical
Density
7.8 to 7.9 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
49 to 50 W/m-K
Thermal Diffusivity
13 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
11 to 17 points
Electrical
Electrical Conductivity: Equal Volume
7.2 to 7.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.3 to 8.4 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
69 to 130 MJ/m 3
Resilience: Unit (Modulus of Resilience)
100 to 330 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
13 to 21 points
Strength to Weight: Bending
14 to 20 points
Environmental
Base Metal Price
2.2 % relative
Embodied Carbon
1.5 to 1.6 kg CO 2 /kg material
Embodied Energy
20 to 22 MJ/kg
Embodied Energy
20 to 22 MJ/kg 8.4 to 9.4 x 10 3 BTU/lb
Embodied Water
48 L/kg
Embodied Water
48 L/kg 5.7 to 5.8 gal/lb
Registered Designations & Aliases
ASTM A414 Pressure Vessel Steel
Standards
ASTM A414 ASTM A414: Standard Specification for Steel, Sheet, Carbon, and High-Strength, Low-Alloy for Pressure Vessels
ASTM A414 ASTM A414: Standard Specification for Steel, Sheet, Carbon, and High-Strength, Low-Alloy for Pressure Vessels Pressure Vessels: External Pressure Technology, 2nd ed., Carl T. F. Ross, 2011 Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005