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EN 1.0503 Steel vs. EN 1.8875 Steel

Both EN 1.0503 steel and EN 1.8875 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.0503 steel and the bottom bar is EN 1.8875 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
19
Fatigue Strength, MPa 210
340
Impact Strength: V-Notched Charpy, J 16
90
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 380
410
Tensile Strength: Ultimate (UTS), MPa 630
660
Tensile Strength: Yield (Proof), MPa 310
490

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
420
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 48
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
3.2
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.8
Embodied Energy, MJ/kg 19
24
Embodied Water, L/kg 47
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
110
Resilience: Unit (Modulus of Resilience), kJ/m3 260
650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
23
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 13
10
Thermal Shock Resistance, points 20
19

Alloy Composition

Boron (B), % 0
0 to 0.0050
Carbon (C), % 0.42 to 0.5
0 to 0.18
Chromium (Cr), % 0 to 0.4
0 to 1.0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 97.3 to 99.08
93.6 to 100
Manganese (Mn), % 0.5 to 0.8
0 to 1.7
Molybdenum (Mo), % 0 to 0.1
0 to 0.7
Nickel (Ni), % 0 to 0.4
0 to 1.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 0.4
0 to 0.6
Sulfur (S), % 0 to 0.045
0 to 0.0080
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.080
Zirconium (Zr), % 0
0 to 0.15