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EN 1.4416 Stainless Steel vs. ACI-ASTM CK20 Steel

Both EN 1.4416 stainless steel and ACI-ASTM CK20 steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 32 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 EN 1.4416 stainless steel and the bottom bar is ACI-ASTM CK20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
37
Fatigue Strength, MPa 170
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 500
530
Tensile Strength: Yield (Proof), MPa 210
260

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 420
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
14
Thermal Expansion, µm/m-K 15
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
25
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.8
4.4
Embodied Energy, MJ/kg 79
62
Embodied Water, L/kg 190
190

Common Calculations

PREN (Pitting Resistance) 39
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
160
Resilience: Unit (Modulus of Resilience), kJ/m3 110
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
19
Strength to Weight: Bending, points 17
19
Thermal Diffusivity, mm2/s 3.2
3.7
Thermal Shock Resistance, points 12
13

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.2
Chromium (Cr), % 19 to 21
23 to 27
Iron (Fe), % 45.2 to 52.4
46.7 to 58
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 4.5 to 5.5
0 to 0.5
Nickel (Ni), % 24 to 26
19 to 22
Nitrogen (N), % 0.12 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.020
0 to 0.040