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ACI-ASTM CG3M Steel vs. AWS E3155

Both ACI-ASTM CG3M steel and AWS E3155 are iron alloys. They have 65% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CG3M steel and the bottom bar is AWS E3155.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 28
23
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 79
81
Tensile Strength: Ultimate (UTS), MPa 580
770

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 15
13
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 20
70
Density, g/cm3 7.9
8.4
Embodied Carbon, kg CO2/kg material 4.1
7.7
Embodied Energy, MJ/kg 56
110
Embodied Water, L/kg 160
300

Common Calculations

PREN (Pitting Resistance) 31
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
26
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 4.1
3.3
Thermal Shock Resistance, points 13
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 18 to 21
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 58.9 to 70
23.3 to 36.3
Manganese (Mn), % 0 to 1.5
1.0 to 2.5
Molybdenum (Mo), % 3.0 to 4.0
2.5 to 3.5
Nickel (Ni), % 9.0 to 13
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
2.0 to 3.0