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ACI-ASTM CD4MCu Steel vs. EN 1.4542 Stainless Steel

Both ACI-ASTM CD4MCu steel and EN 1.4542 stainless steel are iron alloys. They have 87% 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 EN 1.4542 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 18
5.7 to 20
Fatigue Strength, MPa 340
370 to 640
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 770
880 to 1470
Tensile Strength: Yield (Proof), MPa 550
580 to 1300

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
440
Maximum Temperature: Mechanical, °C 1100
860
Melting Completion (Liquidus), °C 1430
1430
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 18
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.5
2.7
Embodied Energy, MJ/kg 49
39
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 32
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
62 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 760
880 to 4360
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
31 to 52
Strength to Weight: Bending, points 24
26 to 37
Thermal Diffusivity, mm2/s 4.5
4.3
Thermal Shock Resistance, points 21
29 to 49

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.070
Chromium (Cr), % 24.5 to 26.5
15 to 17
Copper (Cu), % 2.8 to 3.3
3.0 to 5.0
Iron (Fe), % 59.9 to 66.3
69.6 to 79
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 1.8 to 2.3
0 to 0.6
Nickel (Ni), % 4.8 to 6.0
3.0 to 5.0
Niobium (Nb), % 0
0 to 0.45
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.040
0 to 0.015