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ACI-ASTM CD4MCu Steel vs. EN 1.4646 Stainless Steel

Both ACI-ASTM CD4MCu steel and EN 1.4646 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 1.4646 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
34
Fatigue Strength, MPa 340
340
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
430

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
910
Melting Completion (Liquidus), °C 1430
1390
Melting Onset (Solidus), °C 1380
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 18
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.5
2.8
Embodied Energy, MJ/kg 49
41
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 32
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
220
Resilience: Unit (Modulus of Resilience), kJ/m3 760
460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
27
Strength to Weight: Bending, points 24
24
Thermal Shock Resistance, points 21
16

Alloy Composition

Carbon (C), % 0 to 0.040
0.020 to 0.1
Chromium (Cr), % 24.5 to 26.5
17 to 19
Copper (Cu), % 2.8 to 3.3
1.5 to 3.0
Iron (Fe), % 59.9 to 66.3
59 to 67.3
Manganese (Mn), % 0 to 1.0
10.5 to 12.5
Molybdenum (Mo), % 1.8 to 2.3
0 to 0.5
Nickel (Ni), % 4.8 to 6.0
3.5 to 4.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.050
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015