ASTM A266 Grade 4 Carbon Steel
Carbon & Non-Alloy Steels
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength570MPa
Yield Strength290MPa
Brinell Hardness170HB
Maximum Service Temperature400°C
Chemical Composition
C
0 to 0.3%
MN
0.8 to 1.4%
SI
0.15 to 0.35%
P
0 to 0.025%
S
0 to 0.025%
FE
98 to 99.05%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
23 %
Fatigue Strength
200 MPa
Poisson's Ratio
0.29
Reduction in Area
38 %
Shear Modulus
73 GPa
Shear Strength
360 MPa
Tensile Strength: Ultimate (UTS)
570 MPa
Tensile Strength: Yield (Proof)
290 MPa
Hardness
Brinell Hardness
170
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
51 W/m-K
Thermal Diffusivity
14 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
18 points
Electrical
Electrical Conductivity: Equal Volume
7.1 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.1 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m 3
Resilience: Unit (Modulus of Resilience)
220 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
1.8 % relative
Embodied Carbon
1.4 kg CO 2 /kg material
Embodied Energy
19 MJ/kg
Embodied Energy
19 MJ/kg 8.0 x 10 3 BTU/lb
Embodied Water
47 L/kg
Embodied Water
47 L/kg 5.6 gal/lb
Registered Designations & Aliases
ASTM A266 Grade 4 Carbon Steel
Standards
ASTM A266 ASTM A266: Standard Specification for Carbon Steel Forgings for Pressure Vessel Components
ASTM A266 ASTM A266: Standard Specification for Carbon Steel Forgings for Pressure Vessel Components Pressure Vessels: External Pressure Technology, 2nd ed., Carl T. F. Ross, 2011