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EN 1.0145 Steel vs. EN 1.8958 Steel

Both EN 1.0145 steel and EN 1.8958 steel are iron alloys. Both are furnished in the hot worked condition. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.0145 steel and the bottom bar is EN 1.8958 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
19
Fatigue Strength, MPa 180
150
Impact Strength: V-Notched Charpy, J 31
30
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300
270
Tensile Strength: Ultimate (UTS), MPa 470
430
Tensile Strength: Yield (Proof), MPa 250
220

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
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 51
46
Thermal Expansion, µm/m-K 12
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 1.9
2.4
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
19
Embodied Water, L/kg 47
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85
70
Resilience: Unit (Modulus of Resilience), kJ/m3 170
130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
15
Strength to Weight: Bending, points 17
16
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 15
13

Alloy Composition

Carbon (C), % 0 to 0.21
0 to 0.16
Chromium (Cr), % 0
0.35 to 0.85
Copper (Cu), % 0 to 0.6
0.2 to 0.6
Iron (Fe), % 97.5 to 100
96.5 to 99.3
Manganese (Mn), % 0 to 1.6
0.15 to 0.7
Nickel (Ni), % 0
0 to 0.7
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0
0 to 0.45
Sulfur (S), % 0 to 0.035
0 to 0.040