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EN 1.4530 Stainless Steel vs. ACI-ASTM CK20 Steel

Both EN 1.4530 stainless steel and ACI-ASTM CK20 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 EN 1.4530 stainless steel and the bottom bar is ACI-ASTM CK20 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 76
78
Tensile Strength: Ultimate (UTS), MPa 1030 to 1370
530

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 450
440
Maximum Temperature: Mechanical, °C 790
1100
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 11
15

Otherwise Unclassified Properties

Base Metal Price, % relative 15
25
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.4
4.4
Embodied Energy, MJ/kg 46
62
Embodied Water, L/kg 130
190

Common Calculations

PREN (Pitting Resistance) 19
26
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 36 to 48
19
Strength to Weight: Bending, points 29 to 35
19
Thermal Shock Resistance, points 35 to 47
13

Alloy Composition

Aluminum (Al), % 0.6 to 0.8
0
Carbon (C), % 0 to 0.015
0 to 0.2
Chromium (Cr), % 11.5 to 12.5
23 to 27
Iron (Fe), % 74.4 to 77.3
46.7 to 58
Manganese (Mn), % 0 to 0.1
0 to 2.0
Molybdenum (Mo), % 1.9 to 2.2
0 to 0.5
Nickel (Ni), % 8.5 to 9.5
19 to 22
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 2.0
Sulfur (S), % 0 to 0.0050
0 to 0.040
Titanium (Ti), % 0.28 to 0.37
0