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AWS E2595 vs. ACI-ASTM CH20 Steel

Both AWS E2595 and ACI-ASTM CH20 steel are iron alloys. They have a moderately high 93% 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 AWS E2595 and the bottom bar is ACI-ASTM CH20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
38
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 850
610

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
14
Thermal Expansion, µm/m-K 14
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 23
20
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.4
3.7
Embodied Energy, MJ/kg 61
53
Embodied Water, L/kg 190
180

Common Calculations

PREN (Pitting Resistance) 42
25
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
22
Strength to Weight: Bending, points 25
21
Thermal Diffusivity, mm2/s 4.2
3.7
Thermal Shock Resistance, points 21
15

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.2
Chromium (Cr), % 24 to 27
22 to 26
Copper (Cu), % 0.4 to 1.5
0
Iron (Fe), % 51.4 to 64.5
54.7 to 66
Manganese (Mn), % 0 to 2.5
0 to 1.5
Molybdenum (Mo), % 2.5 to 4.5
0 to 0.5
Nickel (Ni), % 8.0 to 10.5
12 to 15
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.2
0 to 2.0
Sulfur (S), % 0 to 0.025
0 to 0.040
Tungsten (W), % 0.4 to 1.0
0