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ASTM Grade HI Steel vs. ACI-ASTM CD3MWCuN Steel

Both ASTM grade HI steel and ACI-ASTM CD3MWCuN steel are iron alloys. They have 87% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HI steel and the bottom bar is ACI-ASTM CD3MWCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
29
Fatigue Strength, MPa 150
370
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 550
790
Tensile Strength: Yield (Proof), MPa 270
500

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 450
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 23
22
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.1
4.2
Embodied Energy, MJ/kg 59
58
Embodied Water, L/kg 200
180

Common Calculations

PREN (Pitting Resistance) 29
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
200
Resilience: Unit (Modulus of Resilience), kJ/m3 180
620
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
28
Strength to Weight: Bending, points 19
24
Thermal Diffusivity, mm2/s 3.9
4.2
Thermal Shock Resistance, points 12
22

Alloy Composition

Carbon (C), % 0.2 to 0.5
0 to 0.030
Chromium (Cr), % 26 to 30
24 to 26
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 46.9 to 59.8
56.6 to 65.3
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
3.0 to 4.0
Nickel (Ni), % 14 to 18
6.5 to 8.5
Nitrogen (N), % 0
0.2 to 0.3
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 0.025
Tungsten (W), % 0
0.5 to 1.0