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ACI-ASTM CD4MCuN Steel vs. EN 1.4911 Stainless Steel

Both ACI-ASTM CD4MCuN steel and EN 1.4911 stainless steel are iron alloys. They have 76% 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 CD4MCuN steel and the bottom bar is EN 1.4911 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
11
Fatigue Strength, MPa 340
530
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 770
1070
Tensile Strength: Yield (Proof), MPa 550
970

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 450
430
Maximum Temperature: Mechanical, °C 1100
700
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
20
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 18
20
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.5
3.4
Embodied Energy, MJ/kg 49
49
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 35
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
120
Resilience: Unit (Modulus of Resilience), kJ/m3 760
2410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
38
Strength to Weight: Bending, points 24
30
Thermal Diffusivity, mm2/s 4.5
5.4
Thermal Shock Resistance, points 21
37

Alloy Composition

Boron (B), % 0
0.0050 to 0.015
Carbon (C), % 0 to 0.040
0.050 to 0.12
Chromium (Cr), % 24.5 to 26.5
9.8 to 11.2
Cobalt (Co), % 0
5.0 to 7.0
Copper (Cu), % 2.7 to 3.3
0
Iron (Fe), % 59.5 to 66.3
75.7 to 83.8
Manganese (Mn), % 0 to 1.0
0.3 to 1.3
Molybdenum (Mo), % 1.7 to 2.3
0.5 to 1.0
Nickel (Ni), % 4.7 to 6.0
0.2 to 1.2
Niobium (Nb), % 0
0.2 to 0.5
Nitrogen (N), % 0.1 to 0.25
0 to 0.035
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0.1 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.015
Tungsten (W), % 0
0 to 0.7
Vanadium (V), % 0
0.1 to 0.4