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AWS E33-31 vs. ACI-ASTM CK35MN Steel

Both AWS E33-31 and ACI-ASTM CK35MN steel are iron alloys. They have 77% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS E33-31 and the bottom bar is ACI-ASTM CK35MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 29
40
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
81
Tensile Strength: Ultimate (UTS), MPa 810
650

Thermal Properties

Latent Heat of Fusion, J/g 320
310
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1330
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 14
16

Otherwise Unclassified Properties

Base Metal Price, % relative 36
31
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 6.0
5.9
Embodied Energy, MJ/kg 86
81
Embodied Water, L/kg 260
210

Common Calculations

PREN (Pitting Resistance) 44
48
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
22
Strength to Weight: Bending, points 24
21
Thermal Shock Resistance, points 19
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.035
Chromium (Cr), % 31 to 35
22 to 24
Copper (Cu), % 0.4 to 0.8
0 to 0.4
Iron (Fe), % 24.7 to 34.8
43.4 to 51.8
Manganese (Mn), % 2.5 to 4.0
0 to 2.0
Molybdenum (Mo), % 1.0 to 2.0
6.0 to 6.8
Nickel (Ni), % 30 to 32
20 to 22
Nitrogen (N), % 0.3 to 0.5
0.21 to 0.32
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.9
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.020