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EN 1.0145 Steel vs. EN 1.0303 Steel

Both EN 1.0145 steel and EN 1.0303 steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.0145 steel and the bottom bar is EN 1.0303 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
84 to 120
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
12 to 25
Fatigue Strength, MPa 180
150 to 230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300
220 to 260
Tensile Strength: Ultimate (UTS), MPa 470
290 to 410
Tensile Strength: Yield (Proof), MPa 250
200 to 320

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
53
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
1.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
18
Embodied Water, L/kg 47
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85
30 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 170
110 to 270
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
10 to 15
Strength to Weight: Bending, points 17
12 to 16
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 15
9.2 to 13

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.060
Carbon (C), % 0 to 0.21
0.020 to 0.060
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 97.5 to 100
99.335 to 99.71
Manganese (Mn), % 0 to 1.6
0.25 to 0.4
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0 to 0.035
0 to 0.025