AISI 420 Stainless Steel vs. ASTM A369 Grade FP12
Both AISI 420 stainless steel and ASTM A369 grade FP12 are iron alloys. They have 87% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is AISI 420 stainless steel and the bottom bar is ASTM A369 grade FP12.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 190 | |
140 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
190 |
Elongation at Break, % | 8.0 to 15 | |
20 |
Fatigue Strength, MPa | 220 to 670 | |
170 |
Poisson's Ratio | 0.28 | |
0.29 |
Shear Modulus, GPa | 76 | |
73 |
Shear Strength, MPa | 420 to 1010 | |
300 |
Tensile Strength: Ultimate (UTS), MPa | 690 to 1720 | |
470 |
Tensile Strength: Yield (Proof), MPa | 380 to 1310 | |
250 |
Thermal Properties
Latent Heat of Fusion, J/g | 280 | |
250 |
Maximum Temperature: Mechanical, °C | 620 | |
430 |
Melting Completion (Liquidus), °C | 1510 | |
1470 |
Melting Onset (Solidus), °C | 1450 | |
1430 |
Specific Heat Capacity, J/kg-K | 480 | |
470 |
Thermal Conductivity, W/m-K | 27 | |
45 |
Thermal Expansion, µm/m-K | 10 | |
13 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 3.0 | |
7.3 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 3.5 | |
8.3 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 7.5 | |
2.8 |
Density, g/cm3 | 7.7 | |
7.9 |
Embodied Carbon, kg CO2/kg material | 2.0 | |
1.6 |
Embodied Energy, MJ/kg | 28 | |
21 |
Embodied Water, L/kg | 100 | |
52 |
Common Calculations
PREN (Pitting Resistance) | 14 | |
2.8 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 88 to 130 | |
81 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 to 4410 | |
160 |
Stiffness to Weight: Axial, points | 14 | |
13 |
Stiffness to Weight: Bending, points | 25 | |
24 |
Strength to Weight: Axial, points | 25 to 62 | |
17 |
Strength to Weight: Bending, points | 22 to 41 | |
17 |
Thermal Diffusivity, mm2/s | 7.3 | |
12 |
Thermal Shock Resistance, points | 25 to 62 | |
14 |
Alloy Composition
Carbon (C), % | 0.15 to 0.4 | |
0.050 to 0.15 |
Chromium (Cr), % | 12 to 14 | |
0.8 to 1.3 |
Iron (Fe), % | 82.3 to 87.9 | |
96.8 to 98.4 |
Manganese (Mn), % | 0 to 1.0 | |
0.3 to 0.61 |
Molybdenum (Mo), % | 0 to 0.5 | |
0.44 to 0.65 |
Nickel (Ni), % | 0 to 0.75 | |
0 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.025 |
Silicon (Si), % | 0 to 1.0 | |
0 to 0.5 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.025 |