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ACI-ASTM CD6MN Steel vs. AWS E33-31

Both ACI-ASTM CD6MN steel and AWS E33-31 are iron alloys. They have 63% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD6MN steel and the bottom bar is AWS E33-31.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 28
29
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 80
81
Tensile Strength: Ultimate (UTS), MPa 730
810

Thermal Properties

Latent Heat of Fusion, J/g 300
320
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1390
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 17
36
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.4
6.0
Embodied Energy, MJ/kg 48
86
Embodied Water, L/kg 170
260

Common Calculations

PREN (Pitting Resistance) 36
44
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
28
Strength to Weight: Bending, points 23
24
Thermal Shock Resistance, points 20
19

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.030
Chromium (Cr), % 24 to 27
31 to 35
Copper (Cu), % 0
0.4 to 0.8
Iron (Fe), % 62.1 to 70.1
24.7 to 34.8
Manganese (Mn), % 0 to 1.0
2.5 to 4.0
Molybdenum (Mo), % 1.8 to 2.5
1.0 to 2.0
Nickel (Ni), % 4.0 to 6.0
30 to 32
Nitrogen (N), % 0.15 to 0.25
0.3 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.9
Sulfur (S), % 0 to 0.040
0 to 0.010