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R30556 Alloy vs. EN 1.5535 Steel

Both R30556 alloy and EN 1.5535 steel are iron alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is R30556 alloy and the bottom bar is EN 1.5535 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 45
11 to 22
Fatigue Strength, MPa 320
210 to 320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 81
73
Shear Strength, MPa 550
320 to 370
Tensile Strength: Ultimate (UTS), MPa 780
450 to 1490
Tensile Strength: Yield (Proof), MPa 350
300 to 500

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1330
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 11
50
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 70
1.9
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 8.7
1.4
Embodied Energy, MJ/kg 130
19
Embodied Water, L/kg 300
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
45 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 290
240 to 680
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26
16 to 53
Strength to Weight: Bending, points 22
17 to 37
Thermal Diffusivity, mm2/s 2.9
13
Thermal Shock Resistance, points 18
13 to 44

Alloy Composition

Aluminum (Al), % 0.1 to 0.5
0
Boron (B), % 0 to 0.020
0.00080 to 0.0050
Carbon (C), % 0.050 to 0.15
0.2 to 0.25
Chromium (Cr), % 21 to 23
0 to 0.3
Cobalt (Co), % 16 to 21
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 20.4 to 38.2
97.6 to 98.9
Lanthanum (La), % 0.0050 to 0.1
0
Manganese (Mn), % 0.5 to 2.0
0.9 to 1.2
Molybdenum (Mo), % 2.5 to 4.0
0
Nickel (Ni), % 19 to 22.5
0
Niobium (Nb), % 0 to 0.3
0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0.2 to 0.8
0 to 0.3
Sulfur (S), % 0 to 0.015
0 to 0.025
Tantalum (Ta), % 0.3 to 1.3
0
Tungsten (W), % 2.0 to 3.5
0
Zinc (Zn), % 0.0010 to 0.1
0