ASTM A414 Grade H Steel
Alloy Steels
Property Overview
Density7.9g/cm³
Elastic Modulus190GPa
Tensile Strength570MPa
Yield Strength350MPa
Brinell Hardness170HB
Maximum Service Temperature400°C
Chemical Composition
C
0 to 0.14%
CR
0 to 0.15%
NI
0 to 0.2%
MO
0 to 0.060%
MN
0 to 1.5%
SI
0 to 0.3%
N
0 to 0.0090%
P
0 to 0.020%
S
0 to 0.015%
CU
0 to 0.2%
NB
0.0050 to 0.050%
TI
0.0050 to 0.025%
V
0.050 to 0.1%
AL
0.020 to 0.080%
FE
97.2 to 99.94%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
26 %
Fatigue Strength
260 MPa
Poisson's Ratio
0.29
Shear Modulus
73 GPa
Shear Strength
370 MPa
Tensile Strength: Ultimate (UTS)
570 MPa
Tensile Strength: Yield (Proof)
350 MPa
Hardness
Brinell Hardness
170
Physical
Density
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 W/m-K
Thermal Diffusivity
13 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
17 points
Electrical
Electrical Conductivity: Equal Volume
7.2 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.3 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
130 MJ/m 3
Resilience: Unit (Modulus of Resilience)
330 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
20 points
Strength to Weight: Bending
19 points
Environmental
Base Metal Price
2.2 % relative
Embodied Carbon
1.6 kg CO 2 /kg material
Embodied Energy
22 MJ/kg
Embodied Energy
22 MJ/kg 9.4 x 10 3 BTU/lb
Embodied Water
48 L/kg
Embodied Water
48 L/kg 5.7 gal/lb
Registered Designations & Aliases
ASTM A414 Grade H 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