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ACI-ASTM CH10 Steel vs. AWS E318

Both ACI-ASTM CH10 steel and AWS E318 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 ACI-ASTM CH10 steel and the bottom bar is AWS E318.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
29
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 540
620

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 20
23
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.7
4.4
Embodied Energy, MJ/kg 53
62
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 25
27
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
22
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 3.9
4.0
Thermal Shock Resistance, points 12
16

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 22 to 26
17 to 20
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 54.8 to 66
57.6 to 69.5
Manganese (Mn), % 0 to 1.5
0.5 to 2.5
Molybdenum (Mo), % 0 to 0.5
2.0 to 3.0
Nickel (Ni), % 12 to 15
11 to 14
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030