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ACI-ASTM CD4MCu Steel vs. ASTM Grade HK Steel

Both ACI-ASTM CD4MCu steel and ASTM grade HK steel are iron alloys. They have 84% 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 ACI-ASTM CD4MCu steel and the bottom bar is ASTM grade HK steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
11
Fatigue Strength, MPa 340
150
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 770
500
Tensile Strength: Yield (Proof), MPa 550
270

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 450
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1380
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 13
17

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 18
25
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.5
4.4
Embodied Energy, MJ/kg 49
63
Embodied Water, L/kg 180
200

Common Calculations

PREN (Pitting Resistance) 32
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
48
Resilience: Unit (Modulus of Resilience), kJ/m3 760
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
18
Strength to Weight: Bending, points 24
18
Thermal Diffusivity, mm2/s 4.5
3.9
Thermal Shock Resistance, points 21
11

Alloy Composition

Carbon (C), % 0 to 0.040
0.2 to 0.6
Chromium (Cr), % 24.5 to 26.5
24 to 28
Copper (Cu), % 2.8 to 3.3
0
Iron (Fe), % 59.9 to 66.3
44.8 to 57.8
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 1.8 to 2.3
0 to 0.5
Nickel (Ni), % 4.8 to 6.0
18 to 22
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.040
0 to 0.040