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EN 1.8550 Steel vs. EN 1.8897 Steel

Both EN 1.8550 steel and EN 1.8897 steel are iron alloys. They have a very high 96% 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 1.8550 steel and the bottom bar is EN 1.8897 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
20
Fatigue Strength, MPa 470
320
Impact Strength: V-Notched Charpy, J 34
46
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 600
350
Tensile Strength: Ultimate (UTS), MPa 1000
560
Tensile Strength: Yield (Proof), MPa 760
460

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 40
49
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
2.2
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.6
Embodied Energy, MJ/kg 23
22
Embodied Water, L/kg 67
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1550
550
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 36
20
Strength to Weight: Bending, points 29
19
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 29
16

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0.020 to 0.060
Carbon (C), % 0.3 to 0.37
0 to 0.16
Chromium (Cr), % 1.5 to 1.8
0
Iron (Fe), % 94.4 to 96.3
96.8 to 99.98
Manganese (Mn), % 0.4 to 0.7
0 to 1.7
Molybdenum (Mo), % 0.15 to 0.25
0 to 0.2
Nickel (Ni), % 0.85 to 1.2
0 to 0.3
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.035
0 to 0.030
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.12