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EN 1.8901 Steel vs. EN 1.5414 Steel

Both EN 1.8901 steel and EN 1.5414 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.8901 steel and the bottom bar is EN 1.5414 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
170 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
22
Fatigue Strength, MPa 340
250 to 270
Impact Strength: V-Notched Charpy, J 58
46
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 390
350 to 370
Tensile Strength: Ultimate (UTS), MPa 630
550 to 580
Tensile Strength: Yield (Proof), MPa 490
350 to 380

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
410
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 44
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
2.6
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.8
1.6
Embodied Energy, MJ/kg 24
21
Embodied Water, L/kg 51
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 640
320 to 370
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
19 to 20
Strength to Weight: Bending, points 21
19 to 20
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 18
16 to 17

Alloy Composition

Aluminum (Al), % 0 to 0.015
0
Carbon (C), % 0 to 0.22
0 to 0.2
Chromium (Cr), % 0 to 0.35
0 to 0.3
Copper (Cu), % 0 to 0.6
0 to 0.3
Iron (Fe), % 95 to 99.05
96.4 to 98.7
Manganese (Mn), % 1.0 to 1.8
0.9 to 1.5
Molybdenum (Mo), % 0 to 0.13
0.45 to 0.6
Nickel (Ni), % 0 to 0.85
0 to 0.3
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.027
0 to 0.012
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0 to 0.65
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.0050
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.22
0