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EN 1.5450 Steel vs. EN 1.8958 Steel

Both EN 1.5450 steel and EN 1.8958 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 1.5450 steel and the bottom bar is EN 1.8958 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
19
Fatigue Strength, MPa 310
150
Impact Strength: V-Notched Charpy, J 38
30
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 380
270
Tensile Strength: Ultimate (UTS), MPa 620
430
Tensile Strength: Yield (Proof), MPa 460
220

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
410
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.4
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.5
Embodied Energy, MJ/kg 20
19
Embodied Water, L/kg 49
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
70
Resilience: Unit (Modulus of Resilience), kJ/m3 550
130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
15
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 18
13

Alloy Composition

Aluminum (Al), % 0 to 0.060
0
Boron (B), % 0.0020 to 0.0060
0
Carbon (C), % 0.060 to 0.1
0 to 0.16
Chromium (Cr), % 0 to 0.2
0.35 to 0.85
Copper (Cu), % 0 to 0.3
0.2 to 0.6
Iron (Fe), % 97.6 to 98.8
96.5 to 99.3
Manganese (Mn), % 0.6 to 0.8
0.15 to 0.7
Molybdenum (Mo), % 0.4 to 0.5
0
Nickel (Ni), % 0
0 to 0.7
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.35
0 to 0.45
Sulfur (S), % 0 to 0.010
0 to 0.040
Titanium (Ti), % 0 to 0.060
0