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ACI-ASTM CK20 Steel vs. EN 1.4516 Stainless Steel

Both ACI-ASTM CK20 steel and EN 1.4516 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK20 steel and the bottom bar is EN 1.4516 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 37
23
Fatigue Strength, MPa 220
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 530
550
Tensile Strength: Yield (Proof), MPa 260
320

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1100
720
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 14
30
Thermal Expansion, µm/m-K 15
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 25
7.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
2.0
Embodied Energy, MJ/kg 62
28
Embodied Water, L/kg 190
97

Common Calculations

PREN (Pitting Resistance) 26
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
110
Resilience: Unit (Modulus of Resilience), kJ/m3 170
260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
20
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 3.7
8.1
Thermal Shock Resistance, points 13
20

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.080
Chromium (Cr), % 23 to 27
10.5 to 12.5
Iron (Fe), % 46.7 to 58
83.3 to 89
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 19 to 22
0.5 to 1.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 0.7
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
0.050 to 0.35