EN 1.4034 Stainless Steel vs. EN 1.4621 Stainless Steel
Both EN 1.4034 stainless steel and EN 1.4621 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common.
For each property being compared, the top bar is EN 1.4034 stainless steel and the bottom bar is EN 1.4621 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 190 | |
200 |
Elongation at Break, % | 11 to 14 | |
25 |
Fatigue Strength, MPa | 230 to 400 | |
190 |
Poisson's Ratio | 0.28 | |
0.27 |
Shear Modulus, GPa | 76 | |
78 |
Shear Strength, MPa | 420 to 540 | |
320 |
Tensile Strength: Ultimate (UTS), MPa | 690 to 900 | |
500 |
Tensile Strength: Yield (Proof), MPa | 390 to 730 | |
270 |
Thermal Properties
Latent Heat of Fusion, J/g | 270 | |
290 |
Maximum Temperature: Corrosion, °C | 390 | |
510 |
Maximum Temperature: Mechanical, °C | 770 | |
970 |
Melting Completion (Liquidus), °C | 1440 | |
1440 |
Melting Onset (Solidus), °C | 1390 | |
1390 |
Specific Heat Capacity, J/kg-K | 480 | |
480 |
Thermal Conductivity, W/m-K | 30 | |
21 |
Thermal Expansion, µm/m-K | 11 | |
11 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 3.1 | |
2.6 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 3.7 | |
3.1 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 7.0 | |
14 |
Density, g/cm3 | 7.7 | |
7.7 |
Embodied Carbon, kg CO2/kg material | 2.0 | |
2.8 |
Embodied Energy, MJ/kg | 27 | |
41 |
Embodied Water, L/kg | 100 | |
140 |
Common Calculations
PREN (Pitting Resistance) | 14 | |
21 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 81 to 94 | |
110 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 400 to 1370 | |
190 |
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 25 | |
25 |
Strength to Weight: Axial, points | 25 to 32 | |
18 |
Strength to Weight: Bending, points | 22 to 27 | |
18 |
Thermal Diffusivity, mm2/s | 8.1 | |
5.7 |
Thermal Shock Resistance, points | 24 to 32 | |
17 |
Alloy Composition
Carbon (C), % | 0.43 to 0.5 | |
0 to 0.030 |
Chromium (Cr), % | 12.5 to 14.5 | |
20 to 21.5 |
Copper (Cu), % | 0 | |
0.1 to 1.0 |
Iron (Fe), % | 83 to 87.1 | |
74.4 to 79.7 |
Manganese (Mn), % | 0 to 1.0 | |
0 to 1.0 |
Niobium (Nb), % | 0 | |
0.2 to 1.0 |
Nitrogen (N), % | 0 | |
0 to 0.030 |
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 0.015 |