EN 1.4640 Stainless Steel vs. R30556 Alloy
Both EN 1.4640 stainless steel and R30556 alloy are iron alloys. They have 56% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is EN 1.4640 stainless steel and the bottom bar is R30556 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
Elastic (Young's, Tensile) Modulus, GPa | 200 | |
210 |
Elongation at Break, % | 51 | |
45 |
Fatigue Strength, MPa | 230 to 250 | |
320 |
Poisson's Ratio | 0.28 | |
0.28 |
Shear Modulus, GPa | 77 | |
81 |
Shear Strength, MPa | 440 to 460 | |
550 |
Tensile Strength: Ultimate (UTS), MPa | 620 to 650 | |
780 |
Tensile Strength: Yield (Proof), MPa | 240 to 260 | |
350 |
Thermal Properties
Latent Heat of Fusion, J/g | 280 | |
300 |
Maximum Temperature: Corrosion, °C | 420 | |
450 |
Maximum Temperature: Mechanical, °C | 930 | |
1100 |
Melting Completion (Liquidus), °C | 1420 | |
1420 |
Melting Onset (Solidus), °C | 1380 | |
1330 |
Specific Heat Capacity, J/kg-K | 480 | |
450 |
Thermal Conductivity, W/m-K | 15 | |
11 |
Thermal Expansion, µm/m-K | 16 | |
15 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
1.8 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
1.9 |
Otherwise Unclassified Properties
Base Metal Price, % relative | 14 | |
70 |
Density, g/cm3 | 7.8 | |
8.4 |
Embodied Carbon, kg CO2/kg material | 2.8 | |
8.7 |
Embodied Energy, MJ/kg | 40 | |
130 |
Embodied Water, L/kg | 150 | |
300 |
Common Calculations
PREN (Pitting Resistance) | 20 | |
40 |
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 250 to 260 | |
290 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 to 170 | |
290 |
Stiffness to Weight: Axial, points | 14 | |
14 |
Stiffness to Weight: Bending, points | 25 | |
23 |
Strength to Weight: Axial, points | 22 to 23 | |
26 |
Strength to Weight: Bending, points | 21 | |
22 |
Thermal Diffusivity, mm2/s | 4.0 | |
2.9 |
Thermal Shock Resistance, points | 14 to 15 | |
18 |
Alloy Composition
Aluminum (Al), % | 0 | |
0.1 to 0.5 |
Boron (B), % | 0 | |
0 to 0.020 |
Carbon (C), % | 0.030 to 0.080 | |
0.050 to 0.15 |
Chromium (Cr), % | 18 to 19 | |
21 to 23 |
Cobalt (Co), % | 0 | |
16 to 21 |
Copper (Cu), % | 1.3 to 2.0 | |
0 |
Iron (Fe), % | 67.4 to 73.6 | |
20.4 to 38.2 |
Lanthanum (La), % | 0 | |
0.0050 to 0.1 |
Manganese (Mn), % | 1.5 to 4.0 | |
0.5 to 2.0 |
Molybdenum (Mo), % | 0 | |
2.5 to 4.0 |
Nickel (Ni), % | 5.5 to 6.9 | |
19 to 22.5 |
Niobium (Nb), % | 0 | |
0 to 0.3 |
Nitrogen (N), % | 0.030 to 0.11 | |
0.1 to 0.3 |
Phosphorus (P), % | 0 to 0.045 | |
0 to 0.040 |
Silicon (Si), % | 0 to 0.5 | |
0.2 to 0.8 |
Sulfur (S), % | 0 to 0.015 | |
0 to 0.015 |
Tantalum (Ta), % | 0 | |
0.3 to 1.3 |
Tungsten (W), % | 0 | |
2.0 to 3.5 |
Zinc (Zn), % | 0 | |
0.0010 to 0.1 |