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ACI-ASTM CK3MCuN Steel vs. AWS E309H

Both ACI-ASTM CK3MCuN steel and AWS E309H are iron alloys. They have 88% 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 CK3MCuN steel and the bottom bar is AWS E309H.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
34
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 620
620

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1350
1370
Specific Heat Capacity, J/kg-K 460
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
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 29
20
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.6
3.7
Embodied Energy, MJ/kg 76
52
Embodied Water, L/kg 190
180

Common Calculations

PREN (Pitting Resistance) 45
25
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
22
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 14
16

Alloy Composition

Carbon (C), % 0 to 0.025
0.040 to 0.15
Chromium (Cr), % 19.5 to 20.5
22 to 25
Copper (Cu), % 0.5 to 1.0
0 to 0.75
Iron (Fe), % 49.5 to 56.3
55.8 to 65.5
Manganese (Mn), % 0 to 1.2
0.5 to 2.5
Molybdenum (Mo), % 6.0 to 7.0
0 to 0.75
Nickel (Ni), % 17.5 to 19.5
12 to 14
Nitrogen (N), % 0.18 to 0.24
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030