ACI-ASTM CD4MCu Steel vs. ACI-ASTM CD3MN Steel
Both ACI-ASTM CD4MCu steel and ACI-ASTM CD3MN steel are iron alloys. Both are furnished in the normalized and tempered condition. They have a moderately high 94% of their average alloy composition in common.
For each property being compared, the top bar is ACI-ASTM CD4MCu steel and the bottom bar is ACI-ASTM CD3MN steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
200 |
Elongation at Break, % | 18 | |
29 |
Fatigue Strength, MPa | 340 | |
340 |
Poisson's Ratio | 0.27 | |
0.27 |
Shear Modulus, GPa | 79 | |
79 |
Tensile Strength: Ultimate (UTS), MPa | 770 | |
710 |
Tensile Strength: Yield (Proof), MPa | 550 | |
460 |
Thermal Properties
Latent Heat of Fusion, J/g | 300 | |
300 |
Maximum Temperature: Corrosion, °C | 450 | |
430 |
Maximum Temperature: Mechanical, °C | 1100 | |
1060 |
Melting Completion (Liquidus), °C | 1430 | |
1450 |
Melting Onset (Solidus), °C | 1380 | |
1400 |
Specific Heat Capacity, J/kg-K | 480 | |
480 |
Thermal Conductivity, W/m-K | 17 | |
16 |
Thermal Expansion, µm/m-K | 13 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
2.2 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 2.5 | |
2.5 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 18 | |
18 |
Density, g/cm3 | 7.8 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 3.5 | |
3.6 |
Embodied Energy, MJ/kg | 49 | |
50 |
Embodied Water, L/kg | 180 | |
160 |
Common Calculations
PREN (Pitting Resistance) | 32 | |
35 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 | |
180 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 760 | |
530 |
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 25 | |
25 |
Strength to Weight: Axial, points | 28 | |
25 |
Strength to Weight: Bending, points | 24 | |
23 |
Thermal Diffusivity, mm2/s | 4.5 | |
4.3 |
Thermal Shock Resistance, points | 21 | |
20 |
Alloy Composition
Carbon (C), % | 0 to 0.040 | |
0 to 0.030 |
Chromium (Cr), % | 24.5 to 26.5 | |
21 to 23.5 |
Copper (Cu), % | 2.8 to 3.3 | |
0 to 1.0 |
Iron (Fe), % | 59.9 to 66.3 | |
62.6 to 71.9 |
Manganese (Mn), % | 0 to 1.0 | |
0 to 1.5 |
Molybdenum (Mo), % | 1.8 to 2.3 | |
2.5 to 3.5 |
Nickel (Ni), % | 4.8 to 6.0 | |
4.5 to 6.5 |
Nitrogen (N), % | 0 | |
0.1 to 0.3 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.040 |
Silicon (Si), % | 0 to 1.0 | |
0 to 1.0 |
Sulfur (S), % | 0 to 0.040 | |
0 to 0.020 |