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S28200 Stainless Steel vs. ACI-ASTM CK20 Steel

Both S28200 stainless steel and ACI-ASTM CK20 steel are iron alloys. They have 72% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S28200 stainless steel and the bottom bar is ACI-ASTM CK20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
37
Fatigue Strength, MPa 430
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 870
530
Tensile Strength: Yield (Proof), MPa 460
260

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 900
1100
Melting Completion (Liquidus), °C 1380
1400
Melting Onset (Solidus), °C 1330
1430
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 18
15

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.8
4.4
Embodied Energy, MJ/kg 41
62
Embodied Water, L/kg 160
190

Common Calculations

PREN (Pitting Resistance) 29
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 330
160
Resilience: Unit (Modulus of Resilience), kJ/m3 540
170
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 32
19
Strength to Weight: Bending, points 27
19
Thermal Shock Resistance, points 17
13

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.2
Chromium (Cr), % 17 to 19
23 to 27
Copper (Cu), % 0.75 to 1.3
0
Iron (Fe), % 57.7 to 64.1
46.7 to 58
Manganese (Mn), % 17 to 19
0 to 2.0
Molybdenum (Mo), % 0.75 to 1.3
0 to 0.5
Nickel (Ni), % 0
19 to 22
Nitrogen (N), % 0.4 to 0.6
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040