SAE-AISI 1025 Steel vs. AISI 309H Stainless Steel
Both SAE-AISI 1025 steel and AISI 309H stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 1025 steel and the bottom bar is AISI 309H stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 130 to 140 | |
190 |
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
200 |
Elongation at Break, % | 17 to 28 | |
40 |
Fatigue Strength, MPa | 190 to 280 | |
200 |
Poisson's Ratio | 0.29 | |
0.27 |
Reduction in Area, % | 45 to 57 | |
51 |
Shear Modulus, GPa | 73 | |
78 |
Shear Strength, MPa | 290 to 310 | |
400 |
Tensile Strength: Ultimate (UTS), MPa | 450 to 500 | |
580 |
Tensile Strength: Yield (Proof), MPa | 250 to 420 | |
230 |
Thermal Properties
Latent Heat of Fusion, J/g | 250 | |
290 |
Maximum Temperature: Mechanical, °C | 400 | |
1080 |
Melting Completion (Liquidus), °C | 1460 | |
1420 |
Melting Onset (Solidus), °C | 1420 | |
1370 |
Specific Heat Capacity, J/kg-K | 470 | |
480 |
Thermal Conductivity, W/m-K | 52 | |
15 |
Thermal Expansion, µm/m-K | 12 | |
16 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 6.9 | |
2.2 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 8.0 | |
2.5 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 1.8 | |
19 |
Density, g/cm3 | 7.9 | |
7.8 |
Embodied Carbon, kg CO2/kg material | 1.4 | |
3.6 |
Embodied Energy, MJ/kg | 18 | |
51 |
Embodied Water, L/kg | 45 | |
170 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 80 to 110 | |
190 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 170 to 470 | |
130 |
Stiffness to Weight: Axial, points | 13 | |
14 |
Stiffness to Weight: Bending, points | 24 | |
25 |
Strength to Weight: Axial, points | 16 to 18 | |
21 |
Strength to Weight: Bending, points | 17 to 18 | |
20 |
Thermal Diffusivity, mm2/s | 14 | |
4.0 |
Thermal Shock Resistance, points | 14 to 16 | |
13 |
Alloy Composition
Carbon (C), % | 0.22 to 0.28 | |
0.040 to 0.1 |
Chromium (Cr), % | 0 | |
22 to 24 |
Iron (Fe), % | 99.03 to 99.48 | |
58.1 to 66 |
Manganese (Mn), % | 0.3 to 0.6 | |
0 to 2.0 |
Nickel (Ni), % | 0 | |
12 to 15 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.045 |
Silicon (Si), % | 0 | |
0 to 0.75 |
Sulfur (S), % | 0 to 0.050 | |
0 to 0.030 |