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ACI-ASTM CD4MCu Steel vs. EN 1.4986 Stainless Steel

Both ACI-ASTM CD4MCu steel and EN 1.4986 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD4MCu steel and the bottom bar is EN 1.4986 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
18
Fatigue Strength, MPa 340
350
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 770
750
Tensile Strength: Yield (Proof), MPa 550
560

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
520
Maximum Temperature: Mechanical, °C 1100
940
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 18
25
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.5
4.8
Embodied Energy, MJ/kg 49
67
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 32
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
120
Resilience: Unit (Modulus of Resilience), kJ/m3 760
790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
26
Strength to Weight: Bending, points 24
23
Thermal Diffusivity, mm2/s 4.5
4.0
Thermal Shock Resistance, points 21
16

Alloy Composition

Boron (B), % 0
0.050 to 0.1
Carbon (C), % 0 to 0.040
0.040 to 0.1
Chromium (Cr), % 24.5 to 26.5
15.5 to 17.5
Copper (Cu), % 2.8 to 3.3
0
Iron (Fe), % 59.9 to 66.3
59.4 to 66.6
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 1.8 to 2.3
1.6 to 2.0
Nickel (Ni), % 4.8 to 6.0
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0.3 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030