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ACI-ASTM CK20 Steel vs. EN 1.4606 Stainless Steel

Both ACI-ASTM CK20 steel and EN 1.4606 stainless steel are iron alloys. They have 89% 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 1.4606 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 37
23 to 39
Fatigue Strength, MPa 220
240 to 420
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 530
600 to 1020
Tensile Strength: Yield (Proof), MPa 260
280 to 630

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 440
770
Maximum Temperature: Mechanical, °C 1100
910
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
14
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 25
26
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.4
6.0
Embodied Energy, MJ/kg 62
87
Embodied Water, L/kg 190
170

Common Calculations

PREN (Pitting Resistance) 26
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 170
200 to 1010
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
21 to 36
Strength to Weight: Bending, points 19
20 to 28
Thermal Diffusivity, mm2/s 3.7
3.7
Thermal Shock Resistance, points 13
21 to 35

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0 to 0.2
0 to 0.080
Chromium (Cr), % 23 to 27
13 to 16
Iron (Fe), % 46.7 to 58
49.2 to 59
Manganese (Mn), % 0 to 2.0
1.0 to 2.0
Molybdenum (Mo), % 0 to 0.5
1.0 to 1.5
Nickel (Ni), % 19 to 22
24 to 27
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
1.9 to 2.3
Vanadium (V), % 0
0.1 to 0.5