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R30556 Alloy vs. EN 1.8201 Steel

Both R30556 alloy and EN 1.8201 steel are iron alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 31 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 R30556 alloy and the bottom bar is EN 1.8201 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 45
20
Fatigue Strength, MPa 320
310
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
74
Shear Strength, MPa 550
390
Tensile Strength: Ultimate (UTS), MPa 780
630
Tensile Strength: Yield (Proof), MPa 350
450

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
450
Melting Completion (Liquidus), °C 1420
1500
Melting Onset (Solidus), °C 1330
1450
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 11
40
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 70
7.0
Density, g/cm3 8.4
8.0
Embodied Carbon, kg CO2/kg material 8.7
2.5
Embodied Energy, MJ/kg 130
36
Embodied Water, L/kg 300
59

Common Calculations

PREN (Pitting Resistance) 40
5.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
110
Resilience: Unit (Modulus of Resilience), kJ/m3 290
530
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26
22
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 2.9
11
Thermal Shock Resistance, points 18
18

Alloy Composition

Aluminum (Al), % 0.1 to 0.5
0 to 0.030
Boron (B), % 0 to 0.020
0.0010 to 0.0060
Carbon (C), % 0.050 to 0.15
0.040 to 0.1
Chromium (Cr), % 21 to 23
1.9 to 2.6
Cobalt (Co), % 16 to 21
0
Iron (Fe), % 20.4 to 38.2
93.6 to 96.2
Lanthanum (La), % 0.0050 to 0.1
0
Manganese (Mn), % 0.5 to 2.0
0.1 to 0.6
Molybdenum (Mo), % 2.5 to 4.0
0.050 to 0.3
Nickel (Ni), % 19 to 22.5
0
Niobium (Nb), % 0 to 0.3
0.020 to 0.080
Nitrogen (N), % 0.1 to 0.3
0 to 0.015
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0.2 to 0.8
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.010
Tantalum (Ta), % 0.3 to 1.3
0
Titanium (Ti), % 0
0.0050 to 0.060
Tungsten (W), % 2.0 to 3.5
1.5 to 1.8
Vanadium (V), % 0
0.2 to 0.3
Zinc (Zn), % 0.0010 to 0.1
0