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ACI-ASTM CE30 Steel vs. ACI-ASTM CN3M Steel

Both ACI-ASTM CE30 steel and ACI-ASTM CN3M steel are iron alloys. Both are furnished in the heat treated (HT) condition. They have 79% of their average alloy composition in common.

For each property being compared, the top bar is ACI-ASTM CE30 steel and the bottom bar is ACI-ASTM CN3M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
34
Fatigue Strength, MPa 170
150
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 630
500
Tensile Strength: Yield (Proof), MPa 310
190

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 460
430
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 14
13
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 19
31
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 3.4
5.9
Embodied Energy, MJ/kg 49
80
Embodied Water, L/kg 180
200

Common Calculations

PREN (Pitting Resistance) 28
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
130
Resilience: Unit (Modulus of Resilience), kJ/m3 240
89
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
17
Strength to Weight: Bending, points 21
17
Thermal Diffusivity, mm2/s 3.6
3.4
Thermal Shock Resistance, points 13
11

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.030
Chromium (Cr), % 26 to 30
20 to 22
Iron (Fe), % 55.1 to 66
42.4 to 52.5
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
4.5 to 5.5
Nickel (Ni), % 8.0 to 11
23 to 27
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030