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EN 1.8945 Steel vs. EN 1.5415 Steel

Both EN 1.8945 steel and EN 1.5415 steel are iron alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.8945 steel and the bottom bar is EN 1.5415 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
24
Fatigue Strength, MPa 260
200
Impact Strength: V-Notched Charpy, J 30
36
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 350
320
Tensile Strength: Ultimate (UTS), MPa 580
510
Tensile Strength: Yield (Proof), MPa 390
280

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
410
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 42
49
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
2.3
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.5
Embodied Energy, MJ/kg 19
20
Embodied Water, L/kg 51
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82
100
Resilience: Unit (Modulus of Resilience), kJ/m3 410
210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
18
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 17
15

Alloy Composition

Carbon (C), % 0 to 0.15
0.12 to 0.2
Chromium (Cr), % 0.25 to 1.4
0 to 0.3
Copper (Cu), % 0.2 to 0.6
0 to 0.3
Iron (Fe), % 95.1 to 99.5
97.3 to 99.23
Manganese (Mn), % 0 to 1.1
0.4 to 0.9
Molybdenum (Mo), % 0
0.25 to 0.35
Nickel (Ni), % 0 to 0.7
0 to 0.3
Nitrogen (N), % 0 to 0.010
0 to 0.012
Phosphorus (P), % 0.050 to 0.16
0 to 0.025
Silicon (Si), % 0 to 0.8
0 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.010