S21603 Stainless Steel vs. ACI-ASTM CK20 Steel
Both S21603 stainless steel and ACI-ASTM CK20 steel are iron alloys. They have 80% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is S21603 stainless steel and the bottom bar is ACI-ASTM CK20 steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 200 | |
150 |
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
200 |
Elongation at Break, % | 45 | |
37 |
Fatigue Strength, MPa | 360 | |
220 |
Poisson's Ratio | 0.28 | |
0.28 |
Shear Modulus, GPa | 79 | |
78 |
Tensile Strength: Ultimate (UTS), MPa | 690 | |
530 |
Tensile Strength: Yield (Proof), MPa | 390 | |
260 |
Thermal Properties
Latent Heat of Fusion, J/g | 290 | |
310 |
Maximum Temperature: Corrosion, °C | 420 | |
440 |
Maximum Temperature: Mechanical, °C | 990 | |
1100 |
Melting Completion (Liquidus), °C | 1420 | |
1400 |
Melting Onset (Solidus), °C | 1380 | |
1430 |
Specific Heat Capacity, J/kg-K | 480 | |
480 |
Thermal Expansion, µm/m-K | 17 | |
15 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 17 | |
25 |
Density, g/cm3 | 7.7 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 3.6 | |
4.4 |
Embodied Energy, MJ/kg | 50 | |
62 |
Embodied Water, L/kg | 160 | |
190 |
Common Calculations
PREN (Pitting Resistance) | 34 | |
26 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 270 | |
160 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 | |
170 |
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 25 | |
25 |
Strength to Weight: Axial, points | 25 | |
19 |
Strength to Weight: Bending, points | 22 | |
19 |
Thermal Shock Resistance, points | 15 | |
13 |
Alloy Composition
Carbon (C), % | 0 to 0.030 | |
0 to 0.2 |
Chromium (Cr), % | 17.5 to 22 | |
23 to 27 |
Iron (Fe), % | 57.6 to 67.8 | |
46.7 to 58 |
Manganese (Mn), % | 7.5 to 9.0 | |
0 to 2.0 |
Molybdenum (Mo), % | 2.0 to 3.0 | |
0 to 0.5 |
Nickel (Ni), % | 5.0 to 7.0 | |
19 to 22 |
Nitrogen (N), % | 0.25 to 0.5 | |
0 |
Phosphorus (P), % | 0 to 0.045 | |
0 to 0.040 |
Silicon (Si), % | 0 to 0.75 | |
0 to 2.0 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.040 |