AISI 304 Stainless Steel vs. Full-hard AISI 301
Both AISI 304 stainless steel and full-hard AISI 301 are iron alloys. They have a very high 96% of their average alloy composition in common.
For each property being compared, the top bar is AISI 304 stainless steel and the bottom bar is full-hard AISI 301.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 170 to 360 | |
440 |
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
200 |
Elongation at Break, % | 8.0 to 43 | |
7.4 |
Fatigue Strength, MPa | 210 to 440 | |
540 |
Poisson's Ratio | 0.28 | |
0.28 |
Shear Modulus, GPa | 77 | |
77 |
Shear Strength, MPa | 400 to 690 | |
860 |
Tensile Strength: Ultimate (UTS), MPa | 580 to 1180 | |
1460 |
Tensile Strength: Yield (Proof), MPa | 230 to 860 | |
1080 |
Thermal Properties
Latent Heat of Fusion, J/g | 290 | |
280 |
Maximum Temperature: Corrosion, °C | 420 | |
410 |
Maximum Temperature: Mechanical, °C | 710 | |
840 |
Melting Completion (Liquidus), °C | 1450 | |
1420 |
Melting Onset (Solidus), °C | 1400 | |
1400 |
Specific Heat Capacity, J/kg-K | 480 | |
480 |
Thermal Conductivity, W/m-K | 16 | |
16 |
Thermal Expansion, µm/m-K | 17 | |
17 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
2.4 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
2.7 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 15 | |
13 |
Calomel Potential, mV | -80 | |
-70 |
Density, g/cm3 | 7.8 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 3.0 | |
2.7 |
Embodied Energy, MJ/kg | 43 | |
39 |
Embodied Water, L/kg | 150 | |
130 |
Common Calculations
PREN (Pitting Resistance) | 20 | |
18 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 86 to 250 | |
99 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 140 to 1870 | |
2970 |
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 25 | |
25 |
Strength to Weight: Axial, points | 21 to 42 | |
52 |
Strength to Weight: Bending, points | 20 to 32 | |
37 |
Thermal Diffusivity, mm2/s | 4.2 | |
4.2 |
Thermal Shock Resistance, points | 12 to 25 | |
31 |
Alloy Composition
Carbon (C), % | 0 to 0.080 | |
0 to 0.15 |
Chromium (Cr), % | 18 to 20 | |
16 to 18 |
Iron (Fe), % | 66.5 to 74 | |
70.7 to 78 |
Manganese (Mn), % | 0 to 2.0 | |
0 to 2.0 |
Nickel (Ni), % | 8.0 to 10.5 | |
6.0 to 8.0 |
Nitrogen (N), % | 0 to 0.1 | |
0 to 0.1 |
Phosphorus (P), % | 0 to 0.045 | |
0 to 0.045 |
Silicon (Si), % | 0 to 0.75 | |
0 to 1.0 |
Sulfur (S), % | 0 to 0.030 | |
0 to 0.030 |