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ACI-ASTM CK20 Steel vs. EN 1.4596 Stainless Steel

Both ACI-ASTM CK20 steel and EN 1.4596 stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 1.4596 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 530
1030 to 1600

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 440
450
Maximum Temperature: Mechanical, °C 1100
790
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 15
11

Otherwise Unclassified Properties

Base Metal Price, % relative 25
15
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.4
3.5
Embodied Energy, MJ/kg 62
48
Embodied Water, L/kg 190
130

Common Calculations

PREN (Pitting Resistance) 26
19
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
36 to 56
Strength to Weight: Bending, points 19
29 to 39
Thermal Shock Resistance, points 13
35 to 54

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.1
Carbon (C), % 0 to 0.2
0 to 0.015
Chromium (Cr), % 23 to 27
11.5 to 12.5
Iron (Fe), % 46.7 to 58
73.4 to 76.4
Manganese (Mn), % 0 to 2.0
0 to 0.1
Molybdenum (Mo), % 0 to 0.5
1.9 to 2.2
Nickel (Ni), % 19 to 22
9.2 to 10.2
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 2.0
0 to 0.1
Sulfur (S), % 0 to 0.040
0 to 0.0050
Titanium (Ti), % 0
0.28 to 0.4