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ASTM A36 Carbon Steel vs. AWS E318

Both ASTM A36 carbon steel and AWS E318 are iron alloys. They have 64% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ASTM A36 carbon steel and the bottom bar is AWS E318.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
29
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 480
620

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
15
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 14
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
23
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
4.4
Embodied Energy, MJ/kg 18
62
Embodied Water, L/kg 44
160

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
22
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 16
16

Alloy Composition

Carbon (C), % 0 to 0.26
0 to 0.080
Chromium (Cr), % 0
17 to 20
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 99.25 to 100
57.6 to 69.5
Manganese (Mn), % 0
0.5 to 2.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
11 to 14
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030