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SAE-AISI 1025 Steel vs. AWS E120C-K4

Both SAE-AISI 1025 steel and AWS E120C-K4 are iron alloys. They have a very high 96% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1025 steel and the bottom bar is AWS E120C-K4.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 28
17
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 450 to 500
950
Tensile Strength: Yield (Proof), MPa 250 to 420
840

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
41
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
3.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.7
Embodied Energy, MJ/kg 18
23
Embodied Water, L/kg 45
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 110
160
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 470
1880
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 18
34
Strength to Weight: Bending, points 17 to 18
27
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 14 to 16
28

Alloy Composition

Carbon (C), % 0.22 to 0.28
0 to 0.15
Chromium (Cr), % 0
0.15 to 0.65
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 99.03 to 99.48
92.1 to 98.4
Manganese (Mn), % 0.3 to 0.6
0.75 to 2.3
Molybdenum (Mo), % 0
0.25 to 0.65
Nickel (Ni), % 0
0.5 to 2.5
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0 to 0.050
0 to 0.025
Vanadium (V), % 0
0 to 0.030
Residuals, % 0
0 to 0.5