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ACI-ASTM CK35MN Steel vs. AWS E307

Both ACI-ASTM CK35MN steel and AWS E307 are iron alloys. They have 80% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK35MN steel and the bottom bar is AWS E307.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 40
34
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 650
660

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 31
17
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.9
3.5
Embodied Energy, MJ/kg 81
49
Embodied Water, L/kg 210
160

Common Calculations

PREN (Pitting Resistance) 48
23
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
24
Strength to Weight: Bending, points 21
22
Thermal Diffusivity, mm2/s 3.3
4.1
Thermal Shock Resistance, points 14
17

Alloy Composition

Carbon (C), % 0 to 0.035
0.040 to 0.14
Chromium (Cr), % 22 to 24
18 to 21.5
Copper (Cu), % 0 to 0.4
0 to 0.75
Iron (Fe), % 43.4 to 51.8
59.6 to 69.2
Manganese (Mn), % 0 to 2.0
3.3 to 4.8
Molybdenum (Mo), % 6.0 to 6.8
0.5 to 1.5
Nickel (Ni), % 20 to 22
9.0 to 10.7
Nitrogen (N), % 0.21 to 0.32
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030