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ACI-ASTM CD4MCuN Steel vs. EN 1.4971 Stainless Steel

Both ACI-ASTM CD4MCuN steel and EN 1.4971 stainless steel are iron alloys. They have 60% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 1.4971 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 18
34
Fatigue Strength, MPa 340
270
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
81
Tensile Strength: Ultimate (UTS), MPa 770
800
Tensile Strength: Yield (Proof), MPa 550
340

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 450
570
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 17
13
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 18
70
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 3.5
7.6
Embodied Energy, MJ/kg 49
110
Embodied Water, L/kg 180
300

Common Calculations

PREN (Pitting Resistance) 35
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
220
Resilience: Unit (Modulus of Resilience), kJ/m3 760
280
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
3.4
Thermal Shock Resistance, points 21
19

Alloy Composition

Carbon (C), % 0 to 0.040
0.080 to 0.16
Chromium (Cr), % 24.5 to 26.5
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 2.7 to 3.3
0
Iron (Fe), % 59.5 to 66.3
24.3 to 37.1
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 1.7 to 2.3
2.5 to 3.5
Nickel (Ni), % 4.7 to 6.0
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0.1 to 0.25
0.1 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015
Tungsten (W), % 0
2.0 to 3.0