ASTM A372 Grade L Alloy Steel
Alloy Steels
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength1160MPa
Yield Strength1040MPa
Brinell Hardness350HB
Maximum Service Temperature430°C
Chemical Composition
C
0.38 to 0.43%
CR
0.7 to 0.9%
NI
1.7 to 2.0%
MO
0.2 to 0.3%
MN
0.6 to 0.8%
SI
0.15 to 0.35%
P
0 to 0.015%
S
0 to 0.010%
FE
95.2 to 96.3%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
14 %
Fatigue Strength
670 MPa
Poisson's Ratio
0.29
Shear Modulus
73 GPa
Shear Strength
700 MPa
Tensile Strength: Ultimate (UTS)
1160 MPa
Tensile Strength: Yield (Proof)
1040 MPa
Hardness
Brinell Hardness
350
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
430 °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
34 points
Electrical
Electrical Conductivity: Equal Volume
7.5 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.6 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
150 MJ/m 3
Resilience: Unit (Modulus of Resilience)
2890 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
41 points
Strength to Weight: Bending
31 points
Environmental
Base Metal Price
3.5 % relative
Embodied Carbon
1.7 kg CO 2 /kg material
Embodied Energy
22 MJ/kg
Embodied Energy
22 MJ/kg 9.6 x 10 3 BTU/lb
Embodied Water
54 L/kg
Embodied Water
54 L/kg 6.4 gal/lb
Registered Designations & Aliases
ASTM A372 Grade L Alloy Steel
Standards
ASTM A372 ASTM A372: Standard Specification for Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels
ASTM A372 ASTM A372: Standard Specification for Carbon and Alloy Steel Forgings for Thin-Walled Pressure Vessels Pressure Vessels: External Pressure Technology, 2nd ed., Carl T. F. Ross, 2011