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ASTM A387 Grade 12 Steel vs. AWS ER100S-1

Both ASTM A387 grade 12 steel and AWS ER100S-1 are iron alloys. They have a very high 97% 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 ASTM A387 grade 12 steel and the bottom bar is AWS ER100S-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
18
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 470 to 520
770
Tensile Strength: Yield (Proof), MPa 260 to 310
700

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 44
49
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
3.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.8
Embodied Energy, MJ/kg 21
24
Embodied Water, L/kg 51
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 250
1290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 16 to 18
27
Strength to Weight: Bending, points 17 to 18
24
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 14 to 15
23

Alloy Composition


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Aluminum (Al), % 0
0 to 0.1
Carbon (C), % 0.050 to 0.17
0 to 0.080
Chromium (Cr), % 0.8 to 1.2
0 to 0.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 97 to 98.2
93.5 to 96.9
Manganese (Mn), % 0.4 to 0.65
1.3 to 1.8
Molybdenum (Mo), % 0.45 to 0.6
0.25 to 0.55
Nickel (Ni), % 0
1.4 to 2.1
Phosphorus (P), % 0 to 0.025
0 to 0.010
Silicon (Si), % 0.15 to 0.4
0.2 to 0.55
Sulfur (S), % 0 to 0.025
0 to 0.010
Titanium (Ti), % 0
0 to 0.1
Vanadium (V), % 0
0 to 0.050
Zirconium (Zr), % 0
0 to 0.1
Residuals, % 0
0 to 0.5