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EN 1.4470 Stainless Steel vs. ACI-ASTM CA28MWV Steel

Both EN 1.4470 stainless steel and ACI-ASTM CA28MWV steel are iron alloys. They have 83% 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 EN 1.4470 stainless steel and the bottom bar is ACI-ASTM CA28MWV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
11
Fatigue Strength, MPa 320
470
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 680
1080
Tensile Strength: Yield (Proof), MPa 480
870

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 430
380
Maximum Temperature: Mechanical, °C 1060
740
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 18
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
4.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
5.3

Otherwise Unclassified Properties

Base Metal Price, % relative 17
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.6
3.1
Embodied Energy, MJ/kg 49
44
Embodied Water, L/kg 160
100

Common Calculations

PREN (Pitting Resistance) 34
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
110
Resilience: Unit (Modulus of Resilience), kJ/m3 570
1920
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
38
Strength to Weight: Bending, points 22
30
Thermal Diffusivity, mm2/s 4.8
6.6
Thermal Shock Resistance, points 18
40

Alloy Composition

Carbon (C), % 0 to 0.030
0.2 to 0.28
Chromium (Cr), % 21 to 23
11 to 12.5
Iron (Fe), % 63.7 to 71.9
81.4 to 85.8
Manganese (Mn), % 0 to 2.0
0.5 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
0.9 to 1.3
Nickel (Ni), % 4.5 to 6.5
0.5 to 1.0
Nitrogen (N), % 0.12 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
0.9 to 1.3
Vanadium (V), % 0
0.2 to 0.3