EN 1.4122 +A Steel vs. Annealed S17700 Stainless Steel
Both EN 1.4122 +A steel and annealed S17700 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 92% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.4122 +A steel and the bottom bar is annealed S17700 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 240 | |
180 |
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
200 |
Elongation at Break, % | 14 | |
23 |
Fatigue Strength, MPa | 260 | |
290 |
Poisson's Ratio | 0.28 | |
0.28 |
Rockwell B Hardness | 86 | |
81 |
Shear Modulus, GPa | 77 | |
76 |
Shear Strength, MPa | 480 | |
750 |
Tensile Strength: Ultimate (UTS), MPa | 790 | |
1180 |
Tensile Strength: Yield (Proof), MPa | 450 | |
430 |
Thermal Properties
Latent Heat of Fusion, J/g | 280 | |
290 |
Maximum Temperature: Corrosion, °C | 400 | |
410 |
Maximum Temperature: Mechanical, °C | 870 | |
890 |
Melting Completion (Liquidus), °C | 1440 | |
1440 |
Melting Onset (Solidus), °C | 1400 | |
1400 |
Specific Heat Capacity, J/kg-K | 480 | |
480 |
Thermal Conductivity, W/m-K | 15 | |
15 |
Thermal Expansion, µm/m-K | 10 | |
11 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
2.3 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 2.5 | |
2.7 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 9.5 | |
13 |
Density, g/cm3 | 7.7 | |
7.7 |
Embodied Carbon, kg CO2/kg material | 2.4 | |
2.8 |
Embodied Energy, MJ/kg | 33 | |
40 |
Embodied Water, L/kg | 120 | |
150 |
Common Calculations
PREN (Pitting Resistance) | 20 | |
17 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 93 | |
210 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 520 | |
460 |
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 25 | |
25 |
Strength to Weight: Axial, points | 28 | |
42 |
Strength to Weight: Bending, points | 25 | |
32 |
Thermal Diffusivity, mm2/s | 4.0 | |
4.1 |
Thermal Shock Resistance, points | 28 | |
39 |
Alloy Composition
Aluminum (Al), % | 0 | |
0.75 to 1.5 |
Carbon (C), % | 0.33 to 0.45 | |
0 to 0.090 |
Chromium (Cr), % | 15.5 to 17.5 | |
16 to 18 |
Iron (Fe), % | 77.2 to 83.4 | |
70.5 to 76.8 |
Manganese (Mn), % | 0 to 1.5 | |
0 to 1.0 |
Molybdenum (Mo), % | 0.8 to 1.3 | |
0 |
Nickel (Ni), % | 0 to 1.0 | |
6.5 to 7.8 |
Phosphorus (P), % | 0 to 0.040 | |
0 to 0.040 |
Silicon (Si), % | 0 to 1.0 | |
0 to 1.0 |
Sulfur (S), % | 0 to 0.015 | |
0 to 0.030 |