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ACI-ASTM CK20 Steel vs. EN 1.4313 Stainless Steel

Both ACI-ASTM CK20 steel and EN 1.4313 stainless steel are iron alloys. They have 71% 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 CK20 steel and the bottom bar is EN 1.4313 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 37
12 to 17
Fatigue Strength, MPa 220
340 to 510
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 530
750 to 1000
Tensile Strength: Yield (Proof), MPa 260
580 to 910

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 440
390
Maximum Temperature: Mechanical, °C 1100
780
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
25
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
10
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.4
2.4
Embodied Energy, MJ/kg 62
34
Embodied Water, L/kg 190
110

Common Calculations

PREN (Pitting Resistance) 26
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
110 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 170
870 to 2100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
27 to 36
Strength to Weight: Bending, points 19
23 to 28
Thermal Diffusivity, mm2/s 3.7
6.7
Thermal Shock Resistance, points 13
27 to 36

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.050
Chromium (Cr), % 23 to 27
12 to 14
Iron (Fe), % 46.7 to 58
78.5 to 84.2
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
0.3 to 0.7
Nickel (Ni), % 19 to 22
3.5 to 4.5
Nitrogen (N), % 0
0 to 0.020
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