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ACI-ASTM CD3MWCuN Steel vs. EN 1.4303 Stainless Steel

Both ACI-ASTM CD3MWCuN steel and EN 1.4303 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 CD3MWCuN steel and the bottom bar is EN 1.4303 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 29
13 to 49
Fatigue Strength, MPa 370
220 to 320
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 790
590 to 900
Tensile Strength: Yield (Proof), MPa 500
230 to 560

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
940
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 22
17
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.2
3.2
Embodied Energy, MJ/kg 58
46
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 42
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
110 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 620
140 to 800
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
21 to 32
Strength to Weight: Bending, points 24
20 to 26
Thermal Diffusivity, mm2/s 4.2
4.0
Thermal Shock Resistance, points 22
13 to 20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 24 to 26
17 to 19
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 56.6 to 65.3
64.8 to 72
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 6.5 to 8.5
11 to 13
Nitrogen (N), % 0.2 to 0.3
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015
Tungsten (W), % 0.5 to 1.0
0