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ACI-ASTM CD6MN Steel vs. AWS E630

Both ACI-ASTM CD6MN steel and AWS E630 are iron alloys. They have 89% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, 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 E630.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
8.0
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 730
1040

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
17
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 17
14
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.4
2.8
Embodied Energy, MJ/kg 48
40
Embodied Water, L/kg 170
140

Common Calculations

PREN (Pitting Resistance) 36
18
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
37
Strength to Weight: Bending, points 23
29
Thermal Diffusivity, mm2/s 4.4
4.5
Thermal Shock Resistance, points 20
28

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.050
Chromium (Cr), % 24 to 27
16 to 16.8
Copper (Cu), % 0
3.3 to 4.0
Iron (Fe), % 62.1 to 70.1
71.6 to 75.9
Manganese (Mn), % 0 to 1.0
0.25 to 0.75
Molybdenum (Mo), % 1.8 to 2.5
0 to 0.75
Nickel (Ni), % 4.0 to 6.0
4.5 to 5.0
Niobium (Nb), % 0
0.15 to 0.3
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.040
0 to 0.030